I really enjoyed the method you used to check everything and to make sure the device is performing as intended before actually "touching the case" and use it. :) Thanks for the video! :)
Nice. Looking good. A few suggestions that might help clean up some hum. Use shielded input wires grounded on only one side. Check the polarity of all the non electrolytic caps so the foil faces higher impedance. The one heater wire is very long and drapes over the preamp section. Shorten and push back. It also appears to double back on the power tubes. Shorten and twist the wires on the transformer. Wouldn't hurt to straighten the transformer so the planes are perpendicular. Thanks for the great videos.
Also, regarding hum, as others have mentioned; I don't know the schematic details, or if I'm saying something you already know and have checked, but those (ie.)yellow caps maybe "polarized", meaning, one end has a foil shield and needs to be installed the correct way, especially in tube circuits, the shielded side of the cap connected to the low impedance side of the circuit. There's an excellent video on the subject, search "Are Your Capacitors Installed Backwards?" by Mr. Carlson's Lab.
Agree with pulsejet. My ears don't work like they used to but I'm sure I'm hearing a 60 Hz hum. Great work. " Holy Fender Batman, I just saw a Telecaster"!
I've watched this series and see a few things that are odd. The placement of the output transformer seems to be a bit close to the power transformer. this is only my observation but with all the room you have, I would have placed the output transformer on the other side of the chassis, if not a bit further away and turn it a full 90 from the power transformer. Might want to check the power feeds to the heaters, if they are drawn over the tube, it will also introduce hum to the outputs. Either that or you are using an UN-shielded cable to the pickups. That hum should not be present. Other than that, the construction and layout are perfect. The craftsmanship of this unit is flawless and clean, you did a fantastic job of soldering and wiring. New sockets are always hard to press tubes into. I love it.
Looking Sweet. What did you use for those decals ? Might be prudent to install oh say a 20-40mm Muffin Fan in the bottom just to keep the air moving ? Help with Cap Life.
At 8:06 I see what I suppose is a damage cable, maybe you should make a proper isolation, just in case. You make my quarantine more easy with your videos. Regards from Argentina
@@learnelectronics Me too, here the quarantine started on March 20th, but i started the 15th because at the university which i go, we had a suspicious case. Luckly this case resulted negative.
To prevent hum try twisting the filament wires and have them routed as close to the chassis possible. I have not followed this project from the beginning so I haven’t seen if you’ve circuit permit you to ground of one side of the filament supply line.
Thanks for the series, I am tempted to make one myself. Concerned about the hum though like the other comments. Perhaps relocating the output transformer further from the power supply? Also laying the twisted heater wires hard against to the chassis with minimum lengths may help. Any chance you can use shielded cable from the inputs and to the volume and tone controls ? Regardless, it does look good :-)
Looks nice! In your initial checks before turn on, a check to be sure the filaments and high voltage lines are not shorted to ground isn't a bad idea. Also, didn't those Probe Master probes come with screw on collars that cover all but maybe an eighth of an inch of the tip? Would have been handy checking the rectifier filament. And, as others have noted already, HUM . . . When you have the volume at 3/4 on a push-pull 6V6 amp, your guitar should be drowning the hum, so maybe there is a signal path problem in addition to the hum.
You going to do a Proper Frequency Reponce test on it ? Like 20-30Khz ? Yea it should go that high I'm thinking. You going to do any type of Burn in procedure on the tubes ? Some people think it's a must. Wipe the Tubes off prior to firing them up. Finger prints can cook right in.
Nice build, and a fun project to follow along on. But that's waaaaay to much hum. Is it the pickups in the Telecaster that makes all that hum, or is there a future "Lets shield the Telecaster" video possibly? I guess you would be the right guy to make a HowTo video on what does it take to remove hum from a guitar / amplifier setup.
were those two transformers beside each other on top??? p.s you can get hum from the jack lead too, especially if you use distortion.. i used to tie a thin bit of copper wire fro the jack connection to the bottom, now i was only 13/14 when i did this but it worked.. if anyone knows if this is a very bad idea please let me know?? thank you..
Congrats! It's Alive and the smoke stayed in... Lol So what are ya going to do with the other $1600 bucks? :-D Great series and thanks for sharing!... LLAP
love this channel. Question, is there or did you ever make a circuit that can bleed off voltage from one source to another (supercaps) based on the voltage of the source or the target? I have a channel and I make magnet motors and I run them from supercaps and I wanted to try and make a closed loop :|
@@learnelectronics so I'm running a motor off the supercap bank and using the BEM voltage to charge up another bank. I want to connect the source to the target and to balance them out once the source drops below a certain threshold. It would be easier to check out the video it will make more sense then
![Build A Power Supply - With Junk Box Parts! [The BC-348 Series.]](http://i.ytimg.com/vi/nX87kwSshZ8/mqdefault.jpg)
I really enjoyed the method you used to check everything and to make sure the device is performing as intended before actually "touching the case" and use it. :) Thanks for the video! :)
Nice. Looking good. A few suggestions that might help clean up some hum. Use shielded input wires grounded on only one side. Check the polarity of all the non electrolytic caps so the foil faces higher impedance. The one heater wire is very long and drapes over the preamp section. Shorten and push back. It also appears to double back on the power tubes. Shorten and twist the wires on the transformer. Wouldn't hurt to straighten the transformer so the planes are perpendicular. Thanks for the great videos.
Also, regarding hum, as others have mentioned; I don't know the schematic details, or if I'm saying something you already know and have checked, but those (ie.)yellow caps maybe "polarized", meaning, one end has a foil shield and needs to be installed the correct way, especially in tube circuits, the shielded side of the cap connected to the low impedance side of the circuit. There's an excellent video on the subject, search "Are Your Capacitors Installed Backwards?" by Mr. Carlson's Lab.
Yep, HUM Issue. I would be checking input wire routing. Away from any power rails and transformers. Twist all pairs.
THE HUM was almost as loud as the guitar
Eureka no smell or smoke, satisfaction. Great job, sounds great.
I would also look at the filter cap after the rectifier.
Agree with pulsejet. My ears don't work like they used to but I'm sure I'm hearing a 60 Hz hum. Great work. " Holy Fender Batman, I just saw a Telecaster"!
Great build, great sound. Thanks for taking us along on your project.
I've watched this series and see a few things that are odd. The placement of the output transformer seems to be a bit close to the power transformer. this is only my observation but with all the room you have, I would have placed the output transformer on the other side of the chassis, if not a bit further away and turn it a full 90 from the power transformer. Might want to check the power feeds to the heaters, if they are drawn over the tube, it will also introduce hum to the outputs. Either that or you are using an UN-shielded cable to the pickups. That hum should not be present. Other than that, the construction and layout are perfect. The craftsmanship of this unit is flawless and clean, you did a fantastic job of soldering and wiring. New sockets are always hard to press tubes into. I love it.
Looks great, sounds awesome. Cabinet will finish it out nicely.
I am building a 5E3 currently. Built cabinet myself. Looking forward to completing it. Greta video!!
Very cool!
Ah! The old "brand new" tube socket ordeal. Thanks or the memories... LOL
good workman ship now i wanna build one
New 2020 campaign slogan - Make Vacuum Tubes Glow Again!
That's a right perty looking amp you got there! Excellent work! I'd love to hear it with a overdrive box in front of it.
When you turned the switch on, the lights flickered at my house.
Haha
Congratulations!!!
Excellent work!!! Your next build should be a spring reverb.😉
Looking Sweet. What did you use for those decals ? Might be prudent to install oh say a 20-40mm Muffin Fan in the bottom just to keep the air moving ? Help with Cap Life.
I just used Photoshop on my PC and clear water-slide decal paper.
I've been trying to get ride of the hum, shifting wires etc. Still buzzing though
Congrats!
At 8:06 I see what
I suppose is a damage cable, maybe you should make a proper isolation, just in case.
You make my quarantine more easy with your videos. Regards from Argentina
Thank you. How long have you been in quarantine? We have been in since March 15th.
@@learnelectronics Me too, here the quarantine started on March 20th, but i started the 15th because at the university which i go, we had a
suspicious case. Luckly this case resulted negative.
Well, stay safe my friend.
To prevent hum try twisting the filament wires and have them routed as close to the chassis possible. I have not followed this project from the beginning so I haven’t seen if you’ve circuit permit you to ground of one side of the filament supply line.
I did a virtual center tap on the filament lines, but still humming
It's also important to have the filament wires routed as close to the chassis as possible and away from the signalpath.
Perhaps you could use an external DC-supply to feed the filament circuit, and then you would know.
Nicely done....
Wow Great Work...
Thanks for the series, I am tempted to make one myself. Concerned about the hum though like the other comments. Perhaps relocating the output transformer further from the power supply? Also laying the twisted heater wires hard against to the chassis with minimum lengths may help. Any chance you can use shielded cable from the inputs and to the volume and tone controls ? Regardless, it does look good :-)
I'm working on it.
Looks nice! In your initial checks before turn on, a check to be sure the filaments and high voltage lines are not shorted to ground isn't a bad idea. Also, didn't those Probe Master probes come with screw on collars that cover all but maybe an eighth of an inch of the tip? Would have been handy checking the rectifier filament. And, as others have noted already, HUM . . . When you have the volume at 3/4 on a push-pull 6V6 amp, your guitar should be drowning the hum, so maybe there is a signal path problem in addition to the hum.
Very methodical bringing this to life, as it should be with the high voltages involved. Congrats on a great self-made product!
Thanks!
Great job Paul! She looks good and sounds great! Sounds like you might have a bit of hum to deal with, but otherwise, great job!
Yep. Working on the hum issue now
learnelectronics Should we be expecting a follow up video? Hope so!
Nice work. "Hope it don't blow up studios" - That's funny.
👏👏👏👏👏
You going to do a Proper Frequency Reponce test on it ? Like 20-30Khz ? Yea it should go that high I'm thinking. You going to do any type of Burn in procedure on the tubes ? Some people think it's a must. Wipe the Tubes off prior to firing them up. Finger prints can cook right in.
Nice build, and a fun project to follow along on.
But that's waaaaay to much hum.
Is it the pickups in the Telecaster that makes all that hum,
or is there a future "Lets shield the Telecaster" video possibly?
I guess you would be the right guy to make a HowTo video on
what does it take to remove hum from a guitar / amplifier setup.
I'm working on getting rid of the hum now...its from the amp
@@learnelectronics Which means from the PS.
were those two transformers beside each other on top???
p.s you can get hum from the jack lead too, especially if you use distortion.. i used to tie a thin bit of copper wire fro the jack connection to the bottom, now i was only 13/14 when i did this but it worked.. if anyone knows if this is a very bad idea please let me know?? thank you..
Congrats! It's Alive and the smoke stayed in... Lol So what are ya going to do with the other $1600 bucks? :-D
Great series and thanks for sharing!...
LLAP
More guitars of course
@@learnelectronics Lol 👍
love this channel. Question, is there or did you ever make a circuit that can bleed off voltage from one source to another (supercaps) based on the voltage of the source or the target? I have a channel and I make magnet motors and I run them from supercaps and I wanted to try and make a closed loop :|
No I haven't. Email me some details
@@learnelectronics so I'm running a motor off the supercap bank and using the BEM voltage to charge up another bank. I want to connect the source to the target and to balance them out once the source drops below a certain threshold. It would be easier to check out the video it will make more sense then
Can you buy thin shielded for stuff like this & circuit's that need it, anywhere??????
Yes, mic cable with a braided sheild.
.... Can you hear the hum or is it just me?...LOL
Oh yeah, I can hear it
but amp is not grounded properly god with your guitar wire
That's horrible. Lol
Fix the ground issue and loose the hum
That hum is horrible! Louder than the guitar playing itself.
Not to be rude but.. this amp sounds like hot garbage. lol. The hum is obscene. I think it's broken
Not to be rude....but Im gonna lol