I'm a hameg man when it comes to crt scopes, totally love crt scopes not a fan of digital ones so love to see old ones of any kind brought back to life, great work 👍👍
Yes I have 3 or 4 Hameg scopes models nice compact units with good manual and a built in component tester which can be useful. I mainly use digital scopes now as I need serial data but analog scopes are nice for audio and RF applications. Thanks for watching regards Chris
Thank you for this video, Chris. It was a nice and easy repair as you hoped for! Loved the extra information at the end and the humorous start of the video.
Nice handy repair Chris, very tidy construction and well done to George for donating it to the channel. I'd also like to thank George for sending me another communication receiver recently! ;o)
Puffs of smoke from mine a couple of nights ago, had to air out the shop. Looking today for a schematic and disassembly manual and found your video!!! How timely! Hoping the fix is as easy as yours was. It is beautifully made, but a bit of a pain in that you can't see problems involving burnt components because everything is so hidden. Hoping to revive mine so I can get back on track to the real work at hand!!! Thanks so much for your video!!!
This is quite amusing for me as a one time Philips employee! They always did things their own way, sometimes for good but often not! Every product from domestic to professional was characteristically Philips. The 70's and early 80's was their plastic era, because things can be done with plastic that are impossible in metal. Which is good for production but terrible in service, as can be seen here. My pet hate was the very fine pcb traces that were used in the 70's, you would be lucky to lift a component once without the trace coming away with it! Their later test gear was much better, typically using aluminium chassis's, carrying handles etc. They also used some funky methods for retaining covers and casings, they seemed to dislike screws, so it was secret clips and tabs etc. All good fun!
Great video Chris. I have the 3057 (also from George...) Back in my military days, P.E.T. was Performance Evaluation and Tracking, and was used as I recall in Avionics...
Yep, a very nice scope in both cases.. yes your second one was originally rack mounted and came almost caseless. Fans, I'll look back in my early video to tell. Nice easy fix Chris
Flipping brilliant video Chris I have a couple of old scopes in my shed I now have a good idea how they work you the man. Hope you had a great Christmas with your family stay safe
Most scopes are a pain in the arse to work on probably better let them sleep in the shed. You have a wonderful Christmas and fantastic New Year best regards Chris
Ah, the dastardly Rifa cap strikes again! It's amazing how much smoke comes out of one of those - and the smell! I always replace them, failed or not, in older test equipment as that vintage has a habit of developing cracks in the case that many people believe leads to their demise. Very nice demonstration of oscilloscope bandwidth measurement - thank you for another interesting video, Chris. Regards, David. PETS - Performance Evaluation and Tracking System is my guess.
It's worth mentioning the CRT's final anode cape can store an unpleasant charge for some time after power down. I got a belt of the CRT in my DSA last week. It's not nice.
Those Rifa's are awful. I had one nearly set fire to an ASA tv recently. I had left it on in the workshop and when I came back the the workshop was full of smoke. First thing I thought of was the Rifa cap but when I got the back off I was shocked that when it failed it managed to set fire to the degausing coils. First time I seen one not fail safely. Philips test equipment is beautiful. A lovely explanation of bandwidth, thanks Chris.
I think we have both encountered this failure many times. It appears to mainly effect equipment that’s been out of use and then plugged in. I think the capacitors absorb moisture. I often think Philips equipment is odd they have there own way of doing things. Thanks for watching and comments regards Chris
@@allthegearnoidea6752 mine crackled a bit before smoking - the sound made me think I was hearing tube noise from the guitar amp I was working on, but then remembered I had turned it off! The smoke came fast and furious, billowing out. Had all doors and windows opened up in less than a minute and the scope outside! Again, hoping that the problem is the same one I have, don't want to have to go looking for another scope right now!!
Nice easy fix that took 10 times longer to get to than replacing the bad cap. Surprisingly sensitive for a cheap analog oscy Chris. Those buttons and knobs are too close together unless you have tiny fingers. Steve
Yes your right on the button spacing you really have to be paying attention to activate the switch and the writing is very small. However it does work quite well and triggers nicely. Nice easy fix but I have to kiss a lot of frogs. Thanks regards Chris
Enjoyable video as always. PETS... Hmm.Paddington Electric Tram Society? Plastic Engineering Tempts Shenanigans? I remember one of those caps going off in our washing machine. Took ages to eliminate the smell, but a nice easy fix, as you said.
I was given one of these 'scopes last week. I've just plugged it in and after about 10 mins heard the pfffffff and smell of the X2 cap commiting suicide. The rest of the 'scope carried on as normal. I've pulled the psu out and as I don't know the condition of the other caps I've decided to replace all the psu caps. Came to less than £25 at CPC. Hopfully by the end of the week all will be upgraded and working as it should.
Yes I have encountered the same problems many times. It’s my suspicion it main effects equipment that’s not been used for a long time. It doesn’t appear to affect equipment in frequent use. I think those capacitors adsorb water if not warmed by use. Out of interest did you struggle to get the PSU board out, I did!
Initially I had the same problem with the board stopping the bottom clip being undone. If you look at the plastic section that holds the psu in place, just behind where it clips over the casing at the top is another clip that stops the psu board from rising. Unclip the back one and push the board up from the bottom slightly. Do the same at the front but you have to pull the handle adjuster out at the same time. Once the board has been raised slightly you can then unclip the clips at the bottom and pull the whole assembly out. Pity I can't put a picture up. It is a lot easier than it sounds
A Philips CD Recorder,,,,,, Those RIVA caps always go pop,, When I get one of these old scopes they are the first things I replace. Great scope for 19.00 pounds
First thing I change in any vintage equipment although it appears that equipment that’s been out of use suffers worse. I think they absorb moisture if stored damp. Stay safe best regards Chris
One of my first thoughts was what does that PETS stencilling mean, I've seen it before too but no idea what it could be, something Test Systems maybe.. Very unusual method of construction compared to Tek, HP, Telequipment, Hitachi etc Nice little project for a winters day anyway.
Very easy repair but a very usable oscilloscope for little money. I am scratching my head for Pet definitely seen this before on test equipment. Thanks Andrew regards Chris
Can't beat a nice CRT analog scope. I prefer my old Tektronix stuff to the new digital scopes. Thanks for the look see Chris. All the best to you and family for a better 2021.
7:00 The plastic of Rifa capacitor is to thin to hold the magic smoke :-) Rifa is acquired by Kemet, and this type of "safety" capacitor is still available as new today, but i never buy or use them these days, there are more reliable alternatives then this.
Sometimes we have to but what’s available or in economy quantity from the suppliers. So they got replaced with new Rifa. My opinion is that if they are in equipment that is used regularly they will be fine. I think they absorb moisture and the problem occurs if the equipment has been out of use for a long time or stored in a damp environment etc. What brand would you recommend as an alternative. Thanks regards Chris
@@allthegearnoidea6752 Hi, a while ago i bought a lot of 2 Electrophoresis powersupplies (3Kv / 150mA) for "repair or spare parts" from Ebay, and both have these Rifa caps. One powersupply had this Rifa also blown exactly as yours, the smell is like burned wood and need a few days to dissappear. I have replaced them with a 305V rated capacitor of the brand Epcos (Reichelt supplier) , Epcos is ownded by TDK Electronics. Wima is also a decent brand that i commonly use.
Hi, im in cambridge. I just picked up one of these and a pm3335. also a video pattern generator and pulse/bar generator. all for £35 this morning from a scrap yard. I tried to power the pm3055 and out came white smoke (smells bad!). the other one didnt burn but the on/off switch is faulty so needs to be held down to stay on. I didnt get an image on screen but sounded like there is possibly a fan inside this one. do I need to get probes or should I see something when its on? I've never used an analogue oscilloscope and I'm hoping to get something working from this lot.
Wow that’s a fantastic score on the scope and pattern generator you got lucky. The scopes and pattern generator are very good. I do have a donor scope just the bare chassis with no covers. If you want it for spare parts let me know. You can just cut that capacitor out for now it won’t effect the operation of the scope. Thanks regards Chris
@@allthegearnoidea6752 thanks to your video I was able to get the pm3055 up and running, I'll replace that rifa capacitor at some point, they're cheap enough. Thanks for the spare parts offer, the only thing I might want is the right hand digital display on mine doesnt have a backlight but if I cant get the other one to work i might be able to take a light from that. other than the backlight it seems to be working fine so maybe ill get back to you. I used a probe from a hantek usb oscilloscope and it seemed to connect up to this. I'll need to spend some time reading the manual online to figure out how to use it properly
@@SodiumInteresting scopes probes are pretty much all the same at the frequency you will be looking at with the scope. The operation of the scope is a bit quirky but Philips had there own way of doing thing etc. Philips did make a matching scope probe from memory I may be confusing it with the model up that was a Philips scope but it had a fluke badge. If your just getting into to scopes etc it’s a good scope. Enjoy yourself if you need anything give me a shout. Thanks regards Chris
This brand and type of safety capacitor is very well known for failure. It’s often but not always related to moisture ingress because the equipment may not have been used in year. Great question thanks for watching and comments. My best regards Chris
@@allthegearnoidea6752 I'm German, well, but it's good to know when smoke and stench appear. I recently bought a combi-scope PM 3350A (Digital/Analog, 60MHz) for €60 and had to glue the broken power switch clip near the front panel. The battery case (2x AA/LR6 batteries, required for digital storage mode) also had to be cleaned because of leaking old batteries. Was really amazed at the inner plastic case. The absence of dust was also excellent and the PM3350 scope has a fan! I only know the inner workings of Hameg scopes HM605, HM1005 because I am a Hameg-scope fan. ;-) By the way, the backlight of the LCD unit seems too dark to me, and it can't be adjusted like the screen illumination. That bothers me. When I have time, I will consider installing an LED backlight. Much thx for your video! p.s. I've got the Service manual (PM 3350, english) for Technicians, PDF-file 260 pages, if desired.
Hmm pets, Please enjoy this shit :-D Sorry i can't help myself lol. So bad when i laugh at my own jokes, i'm a right sad bugger :-D I understood all the calculations, ok i didn't but i dont need to know lol. My old 4 million year old cossor cd150 has a 3 Dog Biscuits spec. Well that philips scope looks really good :-D. Nicer than a digital scope that takes limited samples of a waveform, then reconstructs it on a screen using guesswork to fill in the missing data, utter madness lol. Sorry chris im just born silly :-D.
Hopefully the maker of those loathsome capacitors suffered in financial purgatory for the plunder of otherwise great test gear long before it's due time. One of the first things to look for in broken vintage test gear.
I'm a hameg man when it comes to crt scopes, totally love crt scopes not a fan of digital ones so love to see old ones of any kind brought back to life, great work 👍👍
Yes I have 3 or 4 Hameg scopes models nice compact units with good manual and a built in component tester which can be useful. I mainly use digital scopes now as I need serial data but analog scopes are nice for audio and RF applications. Thanks for watching regards Chris
Thank you for this video, Chris. It was a nice and easy repair as you hoped for! Loved the extra information at the end and the humorous start of the video.
The beginning of this video was true. Please don’t tell my wife. Have a happy Christmas and stay safe regards Chris
Nice handy repair Chris, very tidy construction and well done to George for donating it to the channel. I'd also like to thank George for sending me another communication receiver recently! ;o)
Yes we are very lucky to have George a very generous and useful friend. Thanks Victor regards Chris.
Puffs of smoke from mine a couple of nights ago, had to air out the shop. Looking today for a schematic and disassembly manual and found your video!!! How timely! Hoping the fix is as easy as yours was. It is beautifully made, but a bit of a pain in that you can't see problems involving burnt components because everything is so hidden. Hoping to revive mine so I can get back on track to the real work at hand!!! Thanks so much for your video!!!
More Oscilloscopes! Yes Yes Yes Nice walk through. -Don't- Fear the Refa. Thank you for the video! Cheers from So.Ca.USA 3rd House On the Left
Love the comment, very funny I will have to use that line
This is quite amusing for me as a one time Philips employee! They always did things their own way, sometimes for good but often not! Every product from domestic to professional was characteristically Philips. The 70's and early 80's was their plastic era, because things can be done with plastic that are impossible in metal. Which is good for production but terrible in service, as can be seen here. My pet hate was the very fine pcb traces that were used in the 70's, you would be lucky to lift a component once without the trace coming away with it! Their later test gear was much better, typically using aluminium chassis's, carrying handles etc. They also used some funky methods for retaining covers and casings, they seemed to dislike screws, so it was secret clips and tabs etc. All good fun!
Get the circuit board out was almost impossible
Great video Chris. I have the 3057 (also from George...)
Back in my military days, P.E.T. was Performance Evaluation and Tracking, and was used as I recall in Avionics...
That sounds like you could be right for PET. I’m not sure what the difference is between the 3057 and 3055. Thanks Paul regards Chris
Hello sir, could you tell me if yours 3057 has the XY mode, or how to turn it on?
Great video Chris
Repairs are only easy if you spot the problem !
Best regards Shaun
Everyone get lucky now and again. Thanks Shaun stay safe regards Chris.
Yep, a very nice scope in both cases.. yes your second one was originally rack mounted and came almost caseless. Fans, I'll look back in my early video to tell. Nice easy fix Chris
Thanks George
Flipping brilliant video Chris I have a couple of old scopes in my shed I now have a good idea how they work you the man. Hope you had a great Christmas with your family stay safe
Most scopes are a pain in the arse to work on probably better let them sleep in the shed. You have a wonderful Christmas and fantastic New Year best regards Chris
Nice fix, and good info! Thanks Chris! Merry Happy!
Thanks and a merry Christmas to you. Regards Chris
Ah, the dastardly Rifa cap strikes again! It's amazing how much smoke comes out of one of those - and the smell! I always replace them, failed or not, in older test equipment as that vintage has a habit of developing cracks in the case that many people believe leads to their demise. Very nice demonstration of oscilloscope bandwidth measurement - thank you for another interesting video, Chris. Regards, David. PETS - Performance Evaluation and Tracking System is my guess.
Hello David. Hope your enjoying Christmas. Your right on the smoke, better to cut them out on sight I think. Thanks regards Chrisv
It's worth mentioning the CRT's final anode cape can store an unpleasant charge for some time after power down. I got a belt of the CRT in my DSA last week. It's not nice.
Yes always worth considering safety. Thanks regards Chris
Great video Chris.
Thanks Harvey Happy Christmas
@@allthegearnoidea6752 Happy Christmas mate.
Great Video, I like easy repairs
Yes nice to get a quick and easy repair now and again. Thanks for watching and happy Christmas regards Chris
Those Rifa's are awful. I had one nearly set fire to an ASA tv recently. I had left it on in the workshop and when I came back the the workshop was full of smoke. First thing I thought of was the Rifa cap but when I got the back off I was shocked that when it failed it managed to set fire to the degausing coils. First time I seen one not fail safely. Philips test equipment is beautiful. A lovely explanation of bandwidth, thanks Chris.
I think we have both encountered this failure many times. It appears to mainly effect equipment that’s been out of use and then plugged in. I think the capacitors absorb moisture. I often think Philips equipment is odd they have there own way of doing things. Thanks for watching and comments regards Chris
very nice Chris I have a lot of those type of capacitors all in the same sort of condition some just quietly smoked and others exploded violently !
I think they fail worse if the equipment is put out of use and not used for sometime. Thanks regards Chris
@@allthegearnoidea6752 mine crackled a bit before smoking - the sound made me think I was hearing tube noise from the guitar amp I was working on, but then remembered I had turned it off! The smoke came fast and furious, billowing out. Had all doors and windows opened up in less than a minute and the scope outside! Again, hoping that the problem is the same one I have, don't want to have to go looking for another scope right now!!
Nice easy fix that took 10 times longer to get to than replacing the bad cap. Surprisingly sensitive for a cheap analog oscy Chris.
Those buttons and knobs are too close together unless you have tiny fingers. Steve
Yes your right on the button spacing you really have to be paying attention to activate the switch and the writing is very small. However it does work quite well and triggers nicely. Nice easy fix but I have to kiss a lot of frogs. Thanks regards Chris
Enjoyable video as always. PETS... Hmm.Paddington Electric Tram Society? Plastic Engineering Tempts Shenanigans? I remember one of those caps going off in our washing machine. Took ages to eliminate the smell, but a nice easy fix, as you said.
I love the PET suggestions we may never know. Thanks regards Chris
Great video again, Chris. PETS could be... Property of The Electronics Training School.
I think that’s a good guess for PETS. I guess we will never know! Thanks for watching and comments stay safe chris
@@allthegearnoidea6752 This training school is still operating today, Chris, based in Essex.
I was given one of these 'scopes last week. I've just plugged it in and after about 10 mins heard the pfffffff and smell of the X2 cap commiting suicide. The rest of the 'scope carried on as normal. I've pulled the psu out and as I don't know the condition of the other caps I've decided to replace all the psu caps. Came to less than £25 at CPC. Hopfully by the end of the week all will be upgraded and working as it should.
Yes I have encountered the same problems many times. It’s my suspicion it main effects equipment that’s not been used for a long time. It doesn’t appear to affect equipment in frequent use. I think those capacitors adsorb water if not warmed by use. Out of interest did you struggle to get the PSU board out, I did!
Initially I had the same problem with the board stopping the bottom clip being undone. If you look at the plastic section that holds the psu in place, just behind where it clips over the casing at the top is another clip that stops the psu board from rising. Unclip the back one and push the board up from the bottom slightly. Do the same at the front but you have to pull the handle adjuster out at the same time. Once the board has been raised slightly you can then unclip the clips at the bottom and pull the whole assembly out. Pity I can't put a picture up. It is a lot easier than it sounds
A Philips CD Recorder,,,,,, Those RIVA caps always go pop,, When I get one of these old scopes they are the first things I replace. Great scope for 19.00 pounds
First thing I change in any vintage equipment although it appears that equipment that’s been out of use suffers worse. I think they absorb moisture if stored damp. Stay safe best regards Chris
@@allthegearnoidea6752 Yes you may be right as those RIVA caps plastic case seems to crack as they get older. Very good point!!
One of my first thoughts was what does that PETS stencilling mean, I've seen it before too but no idea what it could be, something Test Systems maybe.. Very unusual method of construction compared to Tek, HP, Telequipment, Hitachi etc Nice little project for a winters day anyway.
Very easy repair but a very usable oscilloscope for little money. I am scratching my head for Pet definitely seen this before on test equipment. Thanks Andrew regards Chris
You got lucky with that one! :-))
I had to kiss a lot of frog Bob! Happy Christmas regards Chris
Can't beat a nice CRT analog scope. I prefer my old Tektronix stuff to the new digital scopes. Thanks for the look see Chris. All the best to you and family for a better 2021.
Thanks Doug. Stay safe best wished for 2021
I am probably having one of these and if there's something wrong I know which door to knock. Thank you.+1
I will help if I can but I am no expert I just repaired one. Thanks for watching and comments, regards Chris
Would PETS be Phillips Electronic Trouble Shooting 😀🤣
Hope you, and all of us, have a great new year 🍻
A few people have mentioned Philips electronics and it a good idea. Thanks for watching have a good Christmas regards Chris
Plastic Chassis build common to Philips CD players of the time too :-)
a bargin chris and at least from what you said the self destructing psu had already been fixed
Nice to get an easy fix and another scope. Thanks regards Chris
PETS is a trigger word. It makes you go online to but an oscilloscope.
Really. Doesn’t take much to make me buy another oscilloscope! Thanks regards Chris
7:00 The plastic of Rifa capacitor is to thin to hold the magic smoke :-)
Rifa is acquired by Kemet, and this type of "safety" capacitor is still available as new today, but i never buy or use them these days,
there are more reliable alternatives then this.
Sometimes we have to but what’s available or in economy quantity from the suppliers. So they got replaced with new Rifa. My opinion is that if they are in equipment that is used regularly they will be fine. I think they absorb moisture and the problem occurs if the equipment has been out of use for a long time or stored in a damp environment etc. What brand would you recommend as an alternative. Thanks regards Chris
@@allthegearnoidea6752 Hi, a while ago i bought a lot of 2 Electrophoresis powersupplies (3Kv / 150mA) for "repair or spare parts" from Ebay, and both have these Rifa caps. One powersupply had this Rifa also blown exactly as yours, the smell is like burned wood and need a few days to dissappear. I have replaced them with a 305V rated capacitor of the brand Epcos (Reichelt supplier) , Epcos is ownded by TDK Electronics. Wima is also a decent brand that i commonly use.
Hi, im in cambridge.
I just picked up one of these and a pm3335. also a video pattern generator and pulse/bar generator. all for £35 this morning from a scrap yard.
I tried to power the pm3055 and out came white smoke (smells bad!). the other one didnt burn but the on/off switch is faulty so needs to be held down to stay on. I didnt get an image on screen but sounded like there is possibly a fan inside this one. do I need to get probes or should I see something when its on? I've never used an analogue oscilloscope and I'm hoping to get something working from this lot.
Wow that’s a fantastic score on the scope and pattern generator you got lucky. The scopes and pattern generator are very good. I do have a donor scope just the bare chassis with no covers. If you want it for spare parts let me know. You can just cut that capacitor out for now it won’t effect the operation of the scope. Thanks regards Chris
@@allthegearnoidea6752 thanks to your video I was able to get the pm3055 up and running, I'll replace that rifa capacitor at some point, they're cheap enough. Thanks for the spare parts offer, the only thing I might want is the right hand digital display on mine doesnt have a backlight but if I cant get the other one to work i might be able to take a light from that. other than the backlight it seems to be working fine so maybe ill get back to you.
I used a probe from a hantek usb oscilloscope and it seemed to connect up to this. I'll need to spend some time reading the manual online to figure out how to use it properly
@@SodiumInteresting scopes probes are pretty much all the same at the frequency you will be looking at with the scope. The operation of the scope is a bit quirky but Philips had there own way of doing thing etc. Philips did make a matching scope probe from memory I may be confusing it with the model up that was a Philips scope but it had a fluke badge. If your just getting into to scopes etc it’s a good scope. Enjoy yourself if you need anything give me a shout. Thanks regards Chris
Why do you think the cap burned out - maybe overvoltage? As a consequence no measurement necessary?
This brand and type of safety capacitor is very well known for failure. It’s often but not always related to moisture ingress because the equipment may not have been used in year. Great question thanks for watching and comments. My best regards Chris
@@allthegearnoidea6752
I'm German, well, but it's good to know when smoke and stench appear.
I recently bought a combi-scope PM 3350A (Digital/Analog, 60MHz) for €60 and had to glue the broken power switch clip near the front panel. The battery case (2x AA/LR6 batteries, required for digital storage mode) also had to be cleaned because of leaking old batteries. Was really amazed at the inner plastic case. The absence of dust was also excellent and the PM3350 scope has a fan!
I only know the inner workings of Hameg scopes HM605, HM1005 because I am a Hameg-scope fan. ;-)
By the way, the backlight of the LCD unit seems too dark to me, and it can't be adjusted like the screen illumination. That bothers me. When I have time, I will consider installing an LED backlight.
Much thx for your video!
p.s.
I've got the Service manual (PM 3350, english) for Technicians, PDF-file 260 pages, if desired.
Hello, I recently bought that scope and don't know how to turn on the XY mode, the manual has nothing about it. Could you help me?
Sorry I Don’t remember myself as I don’t have the scope to hand right now. I know it will do it as I have used it with a sweep generator
@@allthegearnoidea6752 thank you
👍❤️🇬🇧
Thanks for watching have a good Christmas. Regards Chris
Plastics shrink with age, so it is likely smaller than it used to be !
Oh thanks that probably explains it all the plastic parts are very tight.
Lol 1st.... now I can watch it.
You get extra points for that. Happy Christmas regards Chris.
Hmm pets, Please enjoy this shit :-D Sorry i can't help myself lol.
So bad when i laugh at my own jokes, i'm a right sad bugger :-D
I understood all the calculations, ok i didn't but i dont need to know lol.
My old 4 million year old cossor cd150 has a 3 Dog Biscuits spec.
Well that philips scope looks really good :-D.
Nicer than a digital scope that takes limited samples of a waveform, then reconstructs it on a screen using guesswork to fill in the missing data, utter madness lol.
Sorry chris im just born silly :-D.
Hopefully the maker of those loathsome capacitors suffered in financial purgatory for the plunder of otherwise great test gear long before it's due time. One of the first things to look for in broken vintage test gear.
Yes definitely. It appears to be made worse if the gear has been out of use for sometime or stored damp. I think the capacitors absorb moisture.