To learn more about electronics in a very different and effective way, and gain access to Mr Carlson's personal designs and inventions, visit the Mr Carlson's Lab Patreon page here: www.patreon.com/MrCarlsonsLab
You know what I really like your videos and I like the way you explain things I'm actually a electronic tech I fix TVs and tablets mainly cell phones and stuff like that I really would like to be able to speak with you or chat with you sometime I wanted to talk about a couple of things in brief but I really wanted to know because I have a blue ring Q tester and I'm trying to see if all of my Transformers show up green or should some of them show yellow
Just a suggestion on paint. You might want to try bedliner paint used to coat the bed of a truck in place of a liner. I recently used some to paint a rolling tool box to enhance the durability of the work surface. The paint also dries to a textured finish which hides a lot of flaws. Great video.
Very interesting piece of gear! Looking forward to joining you on the restore! Quick Question: Can a Curve Tracer be constructed using an RCA WO-91B? Thanks!
The M meaning thousand comes from Latin (it stands for Mille) and Roman numerals. It is still used in the financial industry -- that's why they use MM (a thousand thousand) to mean a million. Old schematics also commonly use mF to mean microfarads and mmF to mean picofarads (micro-microfarads).
Hey, kids, you laugh! When I started doing electronics a few decades ago, my first soldering device was a heavy copper wire that I stuck up through the grate of a coal-burning "Warm Morning" stove to get hot. Then I graduated up to a gasoline-burning blow torch that heated a crowbar-type iron. I liked that one - not nearly as many ashes. Those were the days! (From North Carolina, USA)
@ Used to have one as well. My father said he had used it when repairing eaves troughs. The tip was just filed off at an angle and might have been a half inch across. Don't know how, but I picked it up by the wrong end once as you say. I think I gave it up after that.
He does have a robust Weller soldering gun with a piece of 14ga copper wire in it to solder ground joints right to a steel chassis. Can't do that with a sissy froo-froo Hakkon!
When I was a kid ( I am 80 now), there was a radio in a central place in the village and a small speaker in the houses. Similar to the motel/hotel scenario you were talking of.
@@MrCarlsonsLab Valve mics? Sounds like. You have a lovely warm noise when the audio is whacked up really loud to test that. Okay I am that nerdy and I already did that weeks ago ;) Really nice mics .
That's because he knows mics. No cheap Rode / Audio Technica stuff in his chain. At a glance, it looks like a Neumann U47 clone, but obviously, it's a pretty good sounding one.
I'm as giddy as a schoolgirl in watching Paul go through this old radio. Can't wait for the second part! So well done in it's execution,like a skilled surgeon.
This made me think of an episode of "Good Neighbors" where Margot Leadbetter examines a piece of fruit, then tosses it carelessly back into the bin with the others. Tom Good quickly arranges a bit a paper between it and the next and says, "Oh, no, Margot, they're like us: they mustn't touch or they'll go bad!" He then favors her with a salacious leer.
Hi Paul, thanks for the extra bonus video. I always enjoy your excellence work and calming voice, so seeming effortlessly explaining complex ideas, you are a gift to us all, we learn from you...I've thought you are just "laying about" (lol) with the Covid-19 thing, so maybe, sit down with the camera and talk about how you got so far with electronics, unbound by knowledge, what learning, training, or education. I bet, you are mostly didactic. I want know a little about your skills you found, I know many of us are interested in you just a little around the edges of electronics. You are a great personality on this channel and on Patreon. You are inspiration to many of us looking for guidance in repair in the field of electronics. I think you would be great in just what I am describing. I found your channel some two years ago (Thanks to AVE), you are by and away my favorite UA-cam personality!? I know when I make a project from you, strive to make the best I can, and thank you Paul. I know do not what else to call you other than my friend, mentor, docent and so very clever, a guy with a funny sense of humor. I will watch you paint if you describe what you are doing properly...Cheers and 73's Paul.
Great content as always Paul. That is a very interesting receiver. Never seen anything like it. Stay safe my friend. I am going to work everyday although the county has shut down. Now for those of you that are wondering about joining Mr C on Patreon but have yet no decided, Let me tell you it is very worth it and you will enjoy everything you see there. You thin his YT videos are great then you should check out his Patreon.
Five zed four, (5Z4). Took me a second to realize...zed is zee. Lol. I always wrinkle my forehead when I first hear zee pronounced zed. "What did he say?" Ohhhhh...that is right, Canadians and British...being part of the Queens Monarchy...say zed, instead of zee. Which always reminds me...the guy on Pulp Fiction, who captured Bruce Willis...his name was Zed. "Who's Zed?" "Zed's dead baby...Zed's dead." Lol.
What a beautiful design, top and underneath. I love this point-to-point wiring. Printed circuit boards, in a tube unit, are so disappointing. They look cheap. Gotta be the REAL THING. Wires! Wires! Wires! 👍☕️
The house I live at now has a hot tub that quit working. Whoever installed it soldered all the connectors rather than rely on crimping alone. Trouble was, he must've used acid core solder. In the corrosive atmosphere (due to stuff added to the water) they literally rotted off.
I’ve used a large nail heated with a butane grill lighter as a soldering iron in a pinch once. Fixed a broken solder joint on a power barrel connector in some toy belonging to the kids of a friend I was visiting. It worked surprisingly well. Rosin came from the base one of the kids was playing. The hot nail just nicely melted the rosin and took on the solder from the blob the toy manufacturer bestowed on that poor connector. All I did to prep the nail was some Brillo in the kitchen. We had to scrounge to find a Phillips that would fit into the deep recesses in the molded case of the toy. Sometimes one gets lucky
I know it's the wide-angle lens, but when I watch your intros, it always looks like a little tiny you, green-screened in front of comically-enlarged test equipment!
Two thoughts: First, could the missing tube was a rectifier tube that was replaced by the diodes to save the hassle of procuring a replacement? Second , I was as a kid attending a summer camp in Maine in or about 1954, and one of the projects was assembling a bare bones multi band regenerative receiver for amateur radio use kit, band selection was effected with separately purchased plug-on band coils. The maker was Meisner! Turning up the gain control was used to push the receiver into oscillation for receiving Morse code amateur radio signals. At that time, non-polarized plugs were used and the chassis was live, and if the plug was not inserted in the right orientation, electric shock and inability to release grip would occur!
He mentioned in the video that it was an amplifier tube to drive an input to an amplifier. The Large ST tube already installed was the rectifier tube and the diodes were in parallel to it.
@@electronicsworkbench I would guess that the rectifier tube got fried as a result of a failed filter cap, and although the tube is installed, it would be non-functional, with the diodes taking over the work.
@@flatfingertuning727 Those tubes come up to power slowly enough to normally recover the capacitor before the valve is overloaded for two long. What you say sounds plausible but there are 70 year old valve radios and record players still running some have never had any maintenance as well.
There is no oscillator since it is not needed nor is it used in a TRF radio. That is because of the fact this is not a Superheterodyne receiver. This is a TRF receiver and it does not use an oscillator! The tuning is simply done by tuning the actual RF frequencies, it works by having stages of RF tuning. There also is no IF circuit in this receiver. What looks like IF transformer are actually RF transformers.
Looking forward to part two ,and those tubes touching not a good thing but I am he already figured a solutions ,I always replace all old caps very few caps of that old are worth saving ,I not a purist I dont restuff caps no one will see any ways,new caps show how what work that has been done,and you have more room with new caps,and news caps are made better,who want to open a radio twice cause you are cheap,and new caps will make your radio safer,then I check tubes and resistors ,I am still learning that why I am grateful to all that make and share with us their videos,and if you are real lucky they might answer your questions ,but dont hold your breath .
Boy I do want to make a few of Paul’s devices. I’d cherish them. But honestly I’d like to see a radio design oh his own. With his tricks in it so we can pick up Russia space.
I was at first agast to hear you pronounce Solder soul'-der instead of saw'_der and Far'-ad as Fer-ad'. Then I head you say awoot and understood that you must be Canadian, ayh. OK I get it. But Michael's name wasn't Fer-ad'-ay, it was Fara'-day. I didn't know Canadians took so much of their speech from the English as apposed to the way Americans talk. As was said in My Fair Lady, "Why can't the English speak English? The Americans haven't been doing it for years." Keep up the good work and I can't wait to see the referb video, either.
At one time I was considered mission essential but I'm at home, now, one of the benefits of being retired. Looks interesting, Paul. Looking forward to your restoration.
I worked for a hospital that had a lot of Executone nurse call equipmemt and I remember seeing this function. The nurse call/pillow speaker could play the audio and it was capable of 4 channels of audio. It was never implemented in this installation though. The nurse station units actually had tube type amplifiers.
Mr Carlson. Could you please do a restoration of a really old valve and CRT television? I would love to see that. You’ve done quite a few radios (as well as the test gear that I love to watch). A TV would be a really fascinating development.
I take offence when you said 'some old guy with a soldering iron that looks like a crowbar', Mine is more like a police batten :D i.imgur.com/KlTupP8.jpg
Ha I have that HP sampling scope and a few of the tectonic scopes on your right plus some of the signal generators you have and they are still working ! After 40 years!!!
Keep em coming Mr. Carlson!! Looks like old radio repair is what I’ll be doing to occupy my time. At least until I get back to work, or go broke waiting to get back to work... We’re all in this together, so stay safe my friends!
Happy little radios. It's electronics. it's interesting. It's fun. Talk to the radio. Make friends with it. There's nothing in the world that breeds success more than success. All good things that are so damn equivalent to Mr. Ross in both speech and mannerisms like in Paul Carlson's videos.
Hello Paul, Looks like your doing well, that's good in light of recent events. Looks like the TRF receiver will be a fun restoration. Thank you for sharing your vast knowledge and experience, also your video production time and effort. Governor ordered stay home mandate here in Oregon. Take care, all the best, C.
Mr. C. I love watching your videos! You are so knowledgeable you blow me away. I used to be a home entertainment repairman ( T.V. radio, tape recorders, etc.) and these restorations of old devices really brings it back home for me. Thank you so much for doing these.
Easy to read BED capacitors if you know how to read from get go .....Mr Carlson you legend Neat radio though ....would Neighborhoods have ? Like in uk people live within meters of each other , especially in terraced housing for example ?
I had a MSGt in my radar school in the 80s that taught us tube theory. I only remember him hitting a desk with his yardstick when someone fell asleep. That is my vague memory of tube theory.
Greetings Paul - Hey, I love the sensitivity of those TRF Rx wileys. Not to mention the incredible wide audio range, like a 'live' performance... Long ago, I built in a large jack-plug several germanium diode receivers whose antenna was a tuned length for the station I wanted. Each unit had it's own tuned length antenna / Station change, pop-in a different jack. Went into a tube pre-amp then out to a good tube amplifier. Man that old stuff sure impressed my guests. No substitute for quality ! I enjoyed the Meissner inspection. 73, de Tony in S-Africa.
Now this is cool. Thank you Mr. Carlson. I have been laid off as a result of Covid-19. So looking for a new job. Just taking a break now to watch you. Thanks again.
Stay safe, stay healthy, success on the new job search! I finally got a job after 2 years of searching...then last Friday was told the place was shutting down for 2 weeks (no pay)!
Johnathan Waters The “hysteria” that will have killed 200,000 people in the US alone come end of this year… I guess we have different definitions of what “hysteria” is then. If someone blew up a town of 200k people to bits people would be literally up in arms, and the government would be looking to bomb some place in retaliation. But if a preventable virus does it, and people are asked nicely not to act foolish and protect themselves and others, now it’s “hysteria”? The mind boggles. If anything, there’s not nearly enough of being serious about protection. Total shutdowns were needed precisely because people were foolish and extreme measures had to be taken lest millions would die. If people did actually wear masks and distance and do basic disease control from day 1, there would be no need to shut down and have as many layoffs - perhaps even none.
Lol, The Roberston screwdriver, also known as a square screwdriver, was invented in 1908 by P.L. Robertson, a native Canadian. The Phillips head screwdriver created and patented by Henry Philips in the 1930s and was originally used on the 1936 Cadillac.
The fan is that power supply is a Yate Loon fan that can be purchased online for less than $15 including shipping. The exact same fan can be used, or an equivalent size and voltage of a different brand. Most decent quality power supplies like Corsair have variable speed fan controllers (varying the voltage to the fan) based on the power supply load, and in fact some power supplies will not even start the fan until the load reaches a certain level, often not reached with casual Internet browsing and email usage. I personally would just buy a new fan, because the old fan is likely to have problems again, and not sure most people can take apart the inside of fan and lubricate it correctly. Most Corsair PSUs are made by Seasonic, one of the most reputable power supply unit manufacturers, so that PSU has plenty of life with a new or repaired fan.
Had an interest in restoring an antique car, but riding in one of these in parade in 95*F weather with kids was not very fun, no AC. Started in electronics in 1953, one thing you needed back then was muscle, aircraft radios weight over 150 pounds, was all vacuum tubes and relays, those tubes were red hot, relay contacts were always dirty. Computers would take up several rooms. Also could get electrocuted working on this stuff, like a 5 megawatt ground radar, and sure knew about microwaves back then, would microwave you. Efficiency was terrible and could use a radio for a space heater, my latest designs using CMOS technology, could put millions of transistors in less space than a single vacuum tube, and also consume less power. Learn from that old stuff, but leave it. With those old radios, had to put up with as low as 0.01% modulation, with digital transmission, even the weakest signals are modulated at 100%. Keeping up and even advancing technology was a full time job, no watching TV and night, always had to study, if not, would be in the unemployment line. See you are loaded with antique test equipment, would go broke if you had to pay a recycling charge, some may be impressed, I am not.
Hello, Paul, and thanks for your excellent, clean videos. I have a question for you: I saw Patreon's web site, and I want to know what is the necessary amount of money to pay in order to obtain the EXCELENT cap leakage tester schematics, because I want to build one for my personal use. Could you tell me which one of the three subscriptions are enough to gain access to this project?. Thanks again, and believe me: you are an example of order and cleaning in this "not so ever clean" electronics world!.
Mr Carlson's Lab ah good! That’s what I normally use as replacement caps in radios but when you mentioned that IC caps were the best I had to ask for your opinion on what I use
I remember the A-B-C selector switch on the 70 volt Stromberg-Carlson intercoms in my high school; there was also a 3 position volume switch. The expression on my biology teacher's face as she walked over to switch off "Touche" by ZZ Top so she could start her lecture was priceless. It's too bad they gutted that building and "updated" it with all modern fittings; in this state, towns get no subsidies unless they turn every repair into a major project.
![HeathBuilt Voltage Reference Source [Restoration]](/img/n.gif)
To learn more about electronics in a very different and effective way, and gain access to Mr Carlson's personal designs and inventions, visit the Mr Carlson's Lab Patreon page here: www.patreon.com/MrCarlsonsLab
Passing up a "What's in the Booooox?" chance.
Well I’m looking forward to the next video.
You know what I really like your videos and I like the way you explain things I'm actually a electronic tech I fix TVs and tablets mainly cell phones and stuff like that I really would like to be able to speak with you or chat with you sometime I wanted to talk about a couple of things in brief but I really wanted to know because I have a blue ring Q tester and I'm trying to see if all of my Transformers show up green or should some of them show yellow
I am actually a business owner and I do conduct Daily Business I'm just trying to hone my skill
Part 2 plz
Becoming a Patreon member was the most enjoyment I have received from You Tube! Thinking of moving up a level.
Just a suggestion on paint. You might want to try bedliner paint used to coat the bed of a truck in place of a liner. I recently used some to paint a rolling tool box to enhance the durability of the work surface. The paint also dries to a textured finish which hides a lot of flaws. Great video.
Thanks Mr C, enjoy your vids immensely.
Thank you kindly!
Robertson screws; a great Canadian invention.
Thanks, Paul! Can't wait to see the restoration!
Thanks so much for sharing your knowledge with us! Blessings.
Glad to share Victor!
Always a good day when Mr. Carlson posts a video!
You know it, Paul! :-)
Stay Safe Me. Carlson! You're a treasure.
Thanks David!
You seem really excited for this one. It's infectious 😉
Mr Carlson You Rock !!!
Thanks Bob!
Loved this video. Thanks for sharing with us!
Nice device, thanks for sharing.
With your voice you would make a good salesman
Nothing like new old stock tubes.
That green Cornell PM type cap is probably good, they are very reliable.
That top looks so neat it deserves an opening or some kind of a window to see the insides when restored [;
Is there a wire missing to the cap on the 6f8?
Robertson are the best
Very interesting piece of gear! Looking forward to joining you on the restore! Quick Question: Can a Curve Tracer be constructed using an RCA WO-91B? Thanks!
Hi Tony. Any scope that's capable of XY mode will work.
@@MrCarlsonsLab Thank you for the reply Mr. Carlson!
да повезло мужику с приёмником
How do you find your schematics
If it wasn’t for “The History Guy”, I wouldn’t know what Mr Carlson was talking aboot...
The Robertson Screw.
@0:42 Welcome to Hollywood! :-) Isn't it great to not have to pay executives?!
The M meaning thousand comes from Latin (it stands for Mille) and Roman numerals. It is still used in the financial industry -- that's why they use MM (a thousand thousand) to mean a million. Old schematics also commonly use mF to mean microfarads and mmF to mean picofarads (micro-microfarads).
M is also used in the Gas (Natural and Propane) industry: MBTU is “thousands of BTUs”.
Really thanks you sir.! It's just so relaxing and comforting watching your videos. Big thanks from Italy.
500 watt solder-zilla .... Like a crowbar with the end filed down and heated over a campfire. 😂 I love your sense of humor!
HA- THAT'S A HOT ONE-!!!
Hey, kids, you laugh! When I started doing electronics a few decades ago, my first soldering device was a heavy copper wire that I stuck up through the grate of a coal-burning "Warm Morning" stove to get hot. Then I graduated up to a gasoline-burning blow torch that heated a crowbar-type iron. I liked that one - not nearly as many ashes. Those were the days! (From North Carolina, USA)
@ Used to have one as well. My father said he had used it when repairing eaves troughs. The tip was just filed off at an angle and might have been a half inch across. Don't know how, but I picked it up by the wrong end once as you say. I think I gave it up after that.
He does have a robust Weller soldering gun with a piece of 14ga copper wire in it to solder ground joints right to a steel chassis. Can't do that with a sissy froo-froo Hakkon!
@@deadfreightwest5956 ....the right tool for the job-!!!
Thanks for the extra content. Much appreciated at at time like this.
You're very welcome Matty!
When I was a kid ( I am 80 now), there was a radio in a central place in the village and a small speaker in the houses.
Similar to the motel/hotel scenario you were talking of.
You produce the best audio, very clear. Keep putting up material, watch them all.
Thanks!
@@MrCarlsonsLab Valve mics? Sounds like. You have a lovely warm noise when the audio is whacked up really loud to test that. Okay I am that nerdy and I already did that weeks ago ;) Really nice mics .
That's because he knows mics. No cheap Rode / Audio Technica stuff in his chain. At a glance, it looks like a Neumann U47 clone, but obviously, it's a pretty good sounding one.
"... inside these resisto- err, capacitors.."
A Mr. Carlson Freudian slip.
He was right on both accounts considering the age and type. ;-)
Capaci-what? Those are condensers!
@@hempbear i see you are a man of culture as well
@@hempbear Or in German Kondensatoren
It is one of the three certainties in life. Death, Taxes and ALL capacitors become resistors, given time.
I'm as giddy as a schoolgirl in watching Paul go through this old radio. Can't wait for the second part! So well done in it's execution,like a skilled surgeon.
Seconded!
I have one of these! I actually got it at a yard sale, so I have pics of the pointer if you need them. Im half tempted to recap it tonight.
Those tubes are not practicing social distancing...
well when they get power in the fillaments they will hopefully reach a temprature high enough to kill the corona virus
@@kapioskapiopoylos7338 ...BRIGHT IDEA-!!!
@ ispike_ Spot on! Ha- ha😉😊
This made me think of an episode of "Good Neighbors" where Margot Leadbetter examines a piece of fruit, then tosses it carelessly back into the bin with the others. Tom Good quickly arranges a bit a paper between it and the next and says, "Oh, no, Margot, they're like us: they mustn't touch or they'll go bad!" He then favors her with a salacious leer.
Hi Paul, thanks for the extra bonus video. I always enjoy your excellence work and calming voice, so seeming effortlessly explaining complex ideas, you are a gift to us all, we learn from you...I've thought you are just "laying about" (lol) with the Covid-19 thing, so maybe, sit down with the camera and talk about how you got so far with electronics, unbound by knowledge, what learning, training, or education. I bet, you are mostly didactic. I want know a little about your skills you found, I know many of us are interested in you just a little around the edges of electronics. You are a great personality on this channel and on Patreon. You are inspiration to many of us looking for guidance in repair in the field of electronics. I think you would be great in just what I am describing. I found your channel some two years ago (Thanks to AVE), you are by and away my favorite UA-cam personality!? I know when I make a project from you, strive to make the best I can, and thank you Paul. I know do not what else to call you other than my friend, mentor, docent and so very clever, a guy with a funny sense of humor. I will watch you paint if you describe what you are doing properly...Cheers and 73's Paul.
Thank You for your very kind comment Gary!
Join Patreon and find out how to get "transport powers." :P
Rogers that!
Great content as always Paul. That is a very interesting receiver. Never seen anything like it. Stay safe my friend. I am going to work everyday although the county has shut down.
Now for those of you that are wondering about joining Mr C on Patreon but have yet no decided, Let me tell you it is very worth it and you will enjoy everything you see there. You thin his YT videos are great then you should check out his Patreon.
Five zed four, (5Z4). Took me a second to realize...zed is zee. Lol. I always wrinkle my forehead when I first hear zee pronounced zed. "What did he say?" Ohhhhh...that is right, Canadians and British...being part of the Queens Monarchy...say zed, instead of zee. Which always reminds me...the guy on Pulp Fiction, who captured Bruce Willis...his name was Zed. "Who's Zed?" "Zed's dead baby...Zed's dead." Lol.
What a beautiful design, top and underneath. I love this point-to-point wiring. Printed circuit boards, in a tube unit, are so disappointing. They look cheap. Gotta be the REAL THING. Wires! Wires! Wires! 👍☕️
“A filed off crowbar heated over a campfire!” Hey, as long as there is plenty of flux, I’m ok!”
A mate used a tent peg over a fire to fix a campside radio
The house I live at now has a hot tub that quit working. Whoever installed it soldered all the connectors rather than rely on crimping alone. Trouble was, he must've used acid core solder. In the corrosive atmosphere (due to stuff added to the water) they literally rotted off.
I’ve used a large nail heated with a butane grill lighter as a soldering iron in a pinch once. Fixed a broken solder joint on a power barrel connector in some toy belonging to the kids of a friend I was visiting. It worked surprisingly well. Rosin came from the base one of the kids was playing. The hot nail just nicely melted the rosin and took on the solder from the blob the toy manufacturer bestowed on that poor connector. All I did to prep the nail was some Brillo in the kitchen. We had to scrounge to find a Phillips that would fit into the deep recesses in the molded case of the toy. Sometimes one gets lucky
Mr Carlson!He’s an Alien Electronics expert!
That's interesting.
I know of Meissner from my Wireless 19 Set which has a Meissner BFO in it.
G4GHB.
A crowbar. Heated over camp fire. Bahahahahaaaaaaa.
Paul’s signature burns and call outs.
Lol. I’ve said it before.
I’m so glad you’re a Canuck. !
500watt crowbar filed off at one end and heated over a campfire...aka solderzilla!!! Priceless description. Ha.
Hang around and get an education that’s better than any tech school I’ve been to! Go Mr.Carlson! Your videos have substance!👍🏻
I know it's the wide-angle lens, but when I watch your intros, it always looks like a little tiny you, green-screened in front of comically-enlarged test equipment!
Hi Bob. 14mm, F8 @ 18dB is the magic.
Excellent! I don't trust the my ears! l see the 3-V-2 long wave receiver?
With the best wishes from Ukraine and others post soviet republics
Two thoughts: First, could the missing tube was a rectifier tube that was replaced by the diodes to save the hassle of procuring a replacement? Second , I was as a kid attending a summer camp in Maine in or about 1954, and one of the projects was assembling a bare bones multi band regenerative receiver for amateur radio use kit, band selection was effected with separately purchased plug-on band coils. The maker was Meisner! Turning up the gain control was used to push the receiver into oscillation for receiving Morse code amateur radio signals. At that time, non-polarized plugs were used and the chassis was live, and if the plug was not inserted in the right orientation, electric shock and inability to release grip would occur!
He mentioned in the video that it was an amplifier tube to drive an input to an amplifier. The Large ST tube already installed was the rectifier tube and the diodes were in parallel to it.
@@electronicsworkbench I would guess that the rectifier tube got fried as a result of a failed filter cap, and although the tube is installed, it would be non-functional, with the diodes taking over the work.
@@flatfingertuning727 Those tubes come up to power slowly enough to normally recover the capacitor before the valve is overloaded for two long. What you say sounds plausible but there are 70 year old valve radios and record players still running some have never had any maintenance as well.
@@AndrewLohmannKent It would seem odd for someone to have added the silicon diodes if the tube was working. In any case, time will tell.
Wow... I'm actually from Mt. Carmel Illinois and the old Meissner building is still there!
There is no oscillator since it is not needed nor is it used in a TRF radio. That is because of the fact this is not a Superheterodyne receiver. This is a TRF receiver and it does not use an oscillator! The tuning is simply done by tuning the actual RF frequencies, it works by having stages of RF tuning. There also is no IF circuit in this receiver. What looks like IF transformer are actually RF transformers.
Looking forward to part two ,and those tubes touching not a good thing but I am he already figured a solutions ,I always replace all old caps very few caps of that old are worth saving ,I not a purist I dont restuff caps no one will see any ways,new caps show how what work that has been done,and you have more room with new caps,and news caps are made better,who want to open a radio twice cause you are cheap,and new caps will make your radio safer,then I check tubes and resistors ,I am still learning that why I am grateful to all that make and share with us their videos,and if you are real lucky they might answer your questions ,but dont hold your breath .
Couldn't have just written a "k" instead of "m" smh. I always thought that it was typos on the schematic.
Boy I do want to make a few of Paul’s devices. I’d cherish them.
But honestly I’d like to see a radio design oh his own. With his tricks in it so we can pick up Russia space.
I had no idea that Canadians pronounce thing the same way we do in Australia...like Zed instead of Zee, and solder instead of sodder. Impressed.
Great
I was at first agast to hear you pronounce Solder soul'-der instead of saw'_der and Far'-ad as Fer-ad'. Then I head you say awoot and understood that you must be Canadian, ayh. OK I get it. But Michael's name wasn't Fer-ad'-ay, it was Fara'-day. I didn't know Canadians took so much of their speech from the English as apposed to the way Americans talk. As was said in My Fair Lady, "Why can't the English speak English? The Americans haven't been doing it for years."
Keep up the good work and I can't wait to see the referb video, either.
Stuck @ home with Mr C Yeah times are good... Cheers Paul. Hope you n yours are well TFS, G :)
At one time I was considered mission essential but I'm at home, now, one of the benefits of being retired. Looks interesting, Paul. Looking forward to your restoration.
I've learned so much watching this man, and still learning! Looking forward to the update video.
I worked for a hospital that had a lot of Executone nurse call equipmemt and I remember seeing this function. The nurse call/pillow speaker could play the audio and it was capable of 4 channels of audio. It was never implemented in this installation though. The nurse station units actually had tube type amplifiers.
Thanks for sharing that George!
Yes, Paul please restore it.I would enjoy watching that.
Super 👍
Sounds good, Mr. Carlson. I learn so much from your genius, talent and skill. Keep them coming.
Is there a part 2 for this receiver? Looks to be an interesting restoration.
Mr Carlson. Could you please do a restoration of a really old valve and CRT television? I would love to see that. You’ve done quite a few radios (as well as the test gear that I love to watch). A TV would be a really fascinating development.
Thanks for your input Alex. I do have a bunch in que.
I take offence when you said 'some old guy with a soldering iron that looks like a crowbar',
Mine is more like a police batten :D
i.imgur.com/KlTupP8.jpg
LOL!
Wow it’s so nice to listen to someone so on top of his shit. Unbelieveable.
Ha I have that HP sampling scope and a few of the tectonic scopes on your right plus some of the signal generators you have and they are still working ! After 40 years!!!
They sure are great! Probably will work for another 40!
Why do you have a microscope on your lab bench ? Are you a rifer ?
Nice video Mr Carlson. Is this the equivalent to what's called in German "Geradeaus Empfaenger" meaning straight ahead receiver?
So ist es :-)
Sorry for this super basic question, but if this receiver doesn't have an oscillator and it works fine, why do the others have oscillator?
Hi Edgar. "Selectivity" is the answer.
I seem to recall seeing a receiver very similar to that in an old hotel room in Reno, Nevada, back in the early 70's. Fun stuff :)
Keep em coming Mr. Carlson!!
Looks like old radio repair is what I’ll be doing to occupy my time. At least until I get back to work, or go broke waiting to get back to work... We’re all in this together, so stay safe my friends!
Fantastic looking foward. Mr Magoo in Milo, Maine
Looking forward to the next videos! And I like that old chassis diagram. Nice and clear compared to so many others I've seen.
Why? An audio amp tuned to RF but does NOT use 455Khz IF. The signal was wired direct from "source". Why?
You remind me of Bob Ross. Thanks for sharing. Wish you well.
Happy little radios. It's electronics. it's interesting. It's fun. Talk to the radio. Make friends with it. There's nothing in the world that breeds success
more than success. All good things that are so damn equivalent to Mr. Ross in both speech and mannerisms like in Paul Carlson's videos.
An excellent presentation Paul... WELL DONE!!! 10/10
Thank you kindly!
Paul - Lab # 2. So glad that you are bringing out the treasures from Lab # 2 !! Keep showing us more
I think you are the best tube guy on the net, your video's are so good that I always watch them till the end.
Really good stuff here. I am amazed that some idiots have given a thumbs down..
Mr Carlson is never cynical - Just Truthful.
I think the same people do it every video, they can’t stand seeing him get a clean slate. He is such a hard act to follow they are jealous.
Why would they use M to mean 1000?
This was cheaper? Looks nearly like a full radio anyway - lol -, with 6 tube/4 gang/4 slug, etc.
Finally, something good about the Coronavirus. More videos!
Great video! Keep up the good work. I am amazed at the cool stuff you get your hands on.
I would love to have half the test gear he has!!!
@@waynethompson8416 that makes two of us!
Hello Paul, Looks like your doing well, that's good in light of recent events. Looks like the TRF receiver will be a fun restoration. Thank you for sharing your vast knowledge and experience, also your video production time and effort. Governor ordered stay home mandate here in Oregon. Take care, all the best, C.
Mr. C. I love watching your videos! You are so knowledgeable you blow me away. I used to be a home entertainment repairman ( T.V. radio, tape recorders, etc.) and these restorations of old devices really brings it back home for me. Thank you so much for doing these.
You're very welcome Kevin! Thanks for you kind comment too.
Easy to read BED capacitors if you know how to read from get go .....Mr Carlson you legend
Neat radio though ....would Neighborhoods have ? Like in uk people live within meters of each other , especially in terraced housing for example ?
I had a MSGt in my radar school in the 80s that taught us tube theory. I only remember him hitting a desk with his yardstick when someone fell asleep. That is my vague memory of tube theory.
Radar school sounds very interesting
Well I sure learn some new stuff today! Thanks and stay safe!
I know this is 115k subs too late, but where is the UA-cam play button?:)
It's in lab 2, but not on the wall yet.
Greetings Paul - Hey, I love the sensitivity of those TRF Rx wileys. Not to mention the incredible wide audio range, like a 'live' performance... Long ago, I built in a large jack-plug several germanium diode receivers whose antenna was a tuned length for the station I wanted. Each unit had it's own tuned length antenna / Station change, pop-in a different jack. Went into a tube pre-amp then out to a good tube amplifier. Man that old stuff sure impressed my guests. No substitute for quality ! I enjoyed the Meissner inspection. 73, de Tony in S-Africa.
Now this is cool. Thank you Mr. Carlson. I have been laid off as a result of Covid-19. So looking for a new job. Just taking a break now to watch you. Thanks again.
Stay safe, stay healthy, success on the new job search! I finally got a job after 2 years of searching...then last Friday was told the place was shutting down for 2 weeks (no pay)!
That's terrible!! I'm so sorry to hear that this "hysteria" is affecting you negatively. Really, I am. It's absolutely outrageous.
Johnathan Waters The “hysteria” that will have killed 200,000 people in the US alone come end of this year… I guess we have different definitions of what “hysteria” is then. If someone blew up a town of 200k people to bits people would be literally up in arms, and the government would be looking to bomb some place in retaliation. But if a preventable virus does it, and people are asked nicely not to act foolish and protect themselves and others, now it’s “hysteria”? The mind boggles. If anything, there’s not nearly enough of being serious about protection. Total shutdowns were needed precisely because people were foolish and extreme measures had to be taken lest millions would die. If people did actually wear masks and distance and do basic disease control from day 1, there would be no need to shut down and have as many layoffs - perhaps even none.
I hope you have found employment and things are better for you.
Big thumbs up mr Carlson
Lol, The Roberston screwdriver, also known as a square screwdriver, was invented in 1908 by P.L. Robertson, a native Canadian. The Phillips head screwdriver created and patented by Henry Philips in the 1930s and was originally used on the 1936 Cadillac.
The fan is that power supply is a Yate Loon fan that can be purchased online for less than $15 including shipping. The exact same fan can be used, or an equivalent size and voltage of a different brand. Most decent quality power supplies like Corsair have variable speed fan controllers (varying the voltage to the fan) based on the power supply load, and in fact some power supplies will not even start the fan until the load reaches a certain level, often not reached with casual Internet browsing and email usage. I personally would just buy a new fan, because the old fan is likely to have problems again, and not sure most people can take apart the inside of fan and lubricate it correctly. Most Corsair PSUs are made by Seasonic, one of the most reputable power supply unit manufacturers, so that PSU has plenty of life with a new or repaired fan.
Had an interest in restoring an antique car, but riding in one of these in parade in 95*F weather with kids was not very fun, no AC. Started in electronics in 1953, one thing you needed back then was muscle, aircraft radios weight over 150 pounds, was all vacuum tubes and relays, those tubes were red hot, relay contacts were always dirty. Computers would take up several rooms. Also could get electrocuted working on this stuff, like a 5 megawatt ground radar, and sure knew about microwaves back then, would microwave you.
Efficiency was terrible and could use a radio for a space heater, my latest designs using CMOS technology, could put millions of transistors in less space than a single vacuum tube, and also consume less power. Learn from that old stuff, but leave it. With those old radios, had to put up with as low as 0.01% modulation, with digital transmission, even the weakest signals are modulated at 100%. Keeping up and even advancing technology was a full time job, no watching TV and night, always had to study, if not, would be in the unemployment line.
See you are loaded with antique test equipment, would go broke if you had to pay a recycling charge, some may be impressed, I am not.
Hello, Paul, and thanks for your excellent, clean videos. I have a question for you: I saw Patreon's web site, and I want to know what is the necessary amount of money to pay in order to obtain the EXCELENT cap leakage tester schematics, because I want to build one for my personal use. Could you tell me which one of the three subscriptions are enough to gain access to this project?. Thanks again, and believe me: you are an example of order and cleaning in this "not so ever clean" electronics world!.
Thank you for the prebuild look , i learned quite a few things.
Carlson can you tell me what you think about Cornell dubilier orange drop caps?
They are usually very good components. Rarely do I find them faulty.
Mr Carlson's Lab ah good! That’s what I normally use as replacement caps in radios but when you mentioned that IC caps were the best I had to ask for your opinion on what I use
I remember the A-B-C selector switch on the 70 volt Stromberg-Carlson intercoms in my high school; there was also a 3 position volume switch. The expression on my biology teacher's face as she walked over to switch off "Touche" by ZZ Top so she could start her lecture was priceless. It's too bad they gutted that building and "updated" it with all modern fittings; in this state, towns get no subsidies unless they turn every repair into a major project.