I like this video because I can watch it over and over again so I can refresh my memory as to the procedure of properly changing can type electrolytic caps. will you eventually show us how to properly use a multi tester to check circuits, voltage, and good or bad capacitors and resistors?
A great refresher but I am sure newbies will really be able to use this. This kind of video is excellent for people who have never worked on electronics.
I looked around for a day and a half trying to find the accurate information I needed to replace some caps on a old Magnavox amp. I found all the info here that I needed many thanks for putting all your expertise on video.
Thank you for the last part of the video where you mention how to mount those replacement caps for the wax two cap tubes, I was trying to decide if I should rig up a terminal strip or just ziptie it to the clamp!
Thank you so much. You taught me more in the first nine minuets of you video than watching hours of video has. i really enjoyed your training material and I would love to learn from you in a video school situation. You a very clear and concise in your information and make me feel as if I actually can learn electronics without the math. Thank you again. I joined for the first time, just to leave a comment for you because you impressed me so much. Thank you for sharing. Heathkit SB220 Capacitor replacement.
After reading through most of the qeustions posted I get the idea that a lot of people do not listen fully to what they are being told. Right now I have got that off my chest I would like to thank you for a great video showing how to go about restoring equipment that would other wise likley end up has scrap. I started repairing radio/electrical gear when I was able to handle a soldering iron. (The type that had to be heated in a gas burner or on the red embers of an open fire) A long time ago. My first test aids were sight, smell and touch. If I could see that a component was faulty I would replace it with a known good one of the same type, so I had to learn the colour codes for resistors and capacitors at an early age. Reading from library books taught me a lot. I did silver soldering at school as a teenager in metalwork. That was very useful for me when I went on to take take exams as a "Boy Soldier" for education class 1 cert. Best regards de John-G0WXU.
That was perfect! I now feel I can finally get into some of these old record players and radios I have sitting around. You cleared up so many questions in this excellent, concise video. Thank you!
@7:25 & @50:56...I respectfully DIS agree...I was taught you NEVER go UNDER the original circuit design value of a cap, only OVER, so I would put a modern 68MFD cap there, or parallell a 3.3 mfd & a 47 mfd. to come up with 50.3 mfd, or go to justradios.com & order a correct 50 mfd cap. They have 'em in stock at 1.79 each!, OTHER than that, Bryan, I agree with the whole rest of your video about caps.
Thank you for sharing your brain stuff. Mr. Pete 222 as Tubalcain has done the same. He even sounds like you. Check out his stuff as he has over 600 videos about metal shop knowledge. Note his camera, mounting, movement, and other techniques as he has practiced so much. Remember the obvious: my grandchildren haven't got a clue what's in your hands. History that is. Electronics as well. I note the many spiders who shit all over the braided cloth wires that today's ribbon cable has done away with. (Like my grandfather telling about how to care for his horse before and after going to town.) MAKE MORE!
Don't always assume that a can-style multi-section capacitor has a common negative terminal. I recently re-capped an old Zenith AM/SW export set. It had a 2-section cardboard insulated can capacitor with 3 terminals on the bottom along with a insulated metal can terminal. The markings indicated it had 2 caps which were both 10 uF / 450V but there were 3 terminals on the bottom. The radio had wires & components connected to all 3 terminals as well as the insulated metal can terminal. What was the 3rd terminal used for? It turned out, that 3rd unmarked terminal was the negative terminal for one of the caps. The other cap used the insulated metal terminal for negative. So in essence, the can housed 2 independent capacitors. The part in question was a Zenith part number 22-1056C. In this same radio there was also a domino-style component with 3 colored dots (blue-red-black). What I thought was a 62 pF cap turned out to be a 62 ohm wirewound resistor. Lesson learned: Never assume what appears to be obvious.
about 7 years ago I was looking to sell a Univox 60watt head. It worked fairly well except when the volume was turned down it had a hum. I think, from watching your videos that it was likely a capacitor, perhaps a filter capacitor. It was a 3 or 4 tube unit. The guy who was buying it told me the hum meant the power transformer was bad. I think I was only asking $35. Thinking back, if it was the power transformer, how could it hum? Anyway, it went to someone who apparently wanted it bad enough to lie and I only wanted it to go to a good home. I had been using it to power my monitor. I'm a drummer.
Thank you so much for creating this video. I started restoring a Bogen RP-235 last month and you covered about half a dozen questions I had just by walking through this process.
Because modern caps are a lot smaller than the old ones with similar ratings, it's a simple matter to cut off the top of the old cap, pull out the guts, and use the can to house the replacements. The cut off top can be epoxied back on, or for a more solid sealing back up, make a plug from a wood dowel and epoxy it in place. This technique retains the original appearance, and doesn't take up any space. With a little creativity, the repaired cap can be made to look identical to its original appearance, which may be important to collectors of old gear.
Thank you, great video.. for me being a newbie, it seems there is no way to test a capacitor while it is hooked up to other pieces of the equipment...?
Great video Bryan. Never hurts to have a big collection of terminal strips to securely attach replacement capacitors to a chassis. Never ceases to amaze me how many times I have seen new stuff flopping around with electrical tape wrapped around the soldered connections.
Hi, 'Thanks so much for this video. I have an old 1946 Philco radio-phonograph that I have been struggling over. I have never repaired one before. I was confounded with the "capacitors." You answered all my questions. I am listening to music right now. Thanks.
I’m refurbishing a 1960ish reel to reel tape recorder,but having trouble obtaining a Electrolytic capacitor.marked 60+50uF 300vdc wkg .it reads red (terminal)50uF outer.yellow 50uF. The length is approximately 3 inch.round alloy case about 1 inch across,Has anyone an Email address where I could possibly obtain this! I’m in theUK.having no luck.Or can capacitors values be made up in series connection useing two.Thanks.
This was very helpful. I have a 1956 Realist FM tuner that had a 40/40/40 MF can and the cheapest I could find was $50 so I'll be doing your method with 3 seperate caps
hi my name is ted, i like your video a lot this is pointing me in the correct direction i am very new at this at least now i understand how capicators work with the values and voltage i thank you very much for explaining it perfectly, i do have one question for you to answer for me the can capicators do all the values need to be the same for example i have a 1941 GE radio phonograph with the audio filter can capicator the values are 30MFD 350VDC half circle 30MFD 350VDC square 15MFD 250VDC triangle and a 20MFD 25VDC with no symbol if i need to replace this do the values need to stay the same as on the original?? please let me know thanks ted
The working voltages of a cap can be considerably higher in the older tube and discrete transistor stuff but for modern switching power supplies like in flat TV sets, computers, and modern 2-way radios you want them to match what came out and this is due to the ESR values and the circuits designs. You go too high your can cause the circuit to become unstable and unreliable... Also it is important to pay attention to the temperature rating also and you want to match that up as well..
Very helpful. 👍 I'm restoring a 1947 Firestone radio-phono and was wondering how to replace the multi-section can capacitor. The amp works amazingly well with all the original parts, but after 75+ years since all the capacitors were made it would be good to replace them so the radio-phono can be used another 75 years.
the working voltage is soo true. i ordered wrong voltage. 160s for 450 lines. wow my 1st cap blowing up.. stinky lil bugger.. smoke filled the room lol was scary and funny at same time lol
Great advice. It's tempting for a manufacturer to cut corners by going with a cheaper cap--they're buying a million of them. For those of us buying a few, it's no problem spending a little more.
Good sir, I was wondering if you had a source for any Singer TV schematics. I have an Singer H8 101 in need of repair, but I an unable to find documentation online.
Update. I just replaced the multi-section capacitor in a 1954 RCA AM table radio using the information in this video. I knew it was bad, but was not completely clear on how to replace it, and this video cleared things up a lot!
hi guys, the greatest success that I have had was by following the Gregs Electro Blog (just google it) without a doubt the no.1 course that I've tried.
+radiotvphononut Of course. There's a community of radio enthusiasts that believe replacing the caps fixes everything. I've had a person replace all the caps in a radio only to find they were all good and a bad resistor was under biasing an AF amplifier transistor.
I've seen that lots of times. Some people are very good at changing capacitors; but, when they do so and the set still does not work, they are lost because they know zero about how a circuit works or how to troubleshoot it.
I don't really see anything wrong with that. I myself have no electronic knowledge whatsoever so if I or someone else can fix something by simply changing the capacitors then I think that's great.
+VideoTape What radiotvphononut and I were getting at was a lot of people believe changing capacitors is a fix-all solution when it comes to vintage and antique electronics. But, sometimes this isn't always the case. I had an AA5 that was giving me problems even with all new caps. Turned out the oscillator capacitor (which is ganged to the tuning capacitor) had shorted plates!
would you know how to remove the amplifier out of a magnovox console stereo model pf 6354? it's a dual knob volume control and also is equipped with a eight track
I like how you layed out the schematic for what you were doing. - you've unstuffed the mysteries of can caps for me - and revealed the simplicity of terminal strips. THANKS!
Thanks for the great information! I will have to do this on my old Heathkit amature radio equipment that uses the old metal can capacitors. I prefer to leave them in place so the chassis looks original as viewed from the topside.
Very informative video with lots of info on multi section can capacitors. I'll definitely be watching this several times. I question how easy any future maintenance of that four cap section would be. It's seems quite cramped for space in there.
Thanks for the video. I had been looking for etched in symbols on the bottom of a can capacitor and didn't even think to look at the cuts in the phenolic where the leads come through and there they were.
Fantastic job. Always a pleasure to view your work and explanations. Love you editorials (rants) too!
Wow 53 minutes of fun filled Capacitor info This ought to really get the "Replace the capacitors and it fixes everything community" Really going!
A wealth of knowledge earned over many years - Thank you for sharing
Very thorough and well done. I know this took a long time to make, but it should help many newbies with capacitor basics for many years to come.
It did!
I wouldn't call this a crude video. It's quite useful for the novice hobbyist.
This was excellent Bryan. I'm sure it cleared a lot up for many beginners as well as some older techs. Thanks,
Carl
Excellent video. Thanks for explaining everything.
I try to steer clear of negativity....unless it's electronics.
I like this video because I can watch it over and over again so I can refresh my memory as to the procedure of properly changing can type electrolytic caps. will you eventually show us how to properly use a multi tester to check circuits, voltage, and good or bad capacitors and resistors?
A great refresher but I am sure newbies will really be able to use this. This kind of video is excellent for people who have never worked on electronics.
I looked around for a day and a half trying to find the accurate information I needed to replace some caps on a old Magnavox amp. I found all the info here that I needed many thanks for putting all your expertise on video.
Another classic video by a true legend in his field.
Thanks for the Video! covers allot of good points! 73!
Thank you for the last part of the video where you mention how to mount those replacement caps for the wax two cap tubes, I was trying to decide if I should rig up a terminal strip or just ziptie it to the clamp!
Very fine lesson on a key subject...Thank You!
Thank you for all the details you go into. This is a great educational video for the next generation of Vintage Electronics Repair hobbyist!!!
Thank you so much. You taught me more in the first nine minuets of you video than watching hours of video has. i really enjoyed your training material and I would love to learn from you in a video school situation. You a very clear and concise in your information and make me feel as if I actually can learn electronics without the math. Thank you again. I joined for the first time, just to leave a comment for you because you impressed me so much. Thank you for sharing. Heathkit SB220 Capacitor replacement.
After reading through most of the qeustions posted I get the idea that a lot of people do not listen fully to what they are being told. Right now I have got that off my chest I would like to thank you for a great video showing how to go about restoring equipment that would other wise likley end up has scrap. I started repairing radio/electrical gear when I was able to handle a soldering iron. (The type that had to be heated in a gas burner or on the red embers of an open fire) A long time ago. My first test aids were sight, smell and touch. If I could see that a component was faulty I would replace it with a known good one of the same type, so I had to learn the colour codes for resistors and capacitors at an early age. Reading from library books taught me a lot. I did silver soldering at school as a teenager in metalwork. That was very useful for me when I went on to take take exams as a "Boy Soldier" for education class 1 cert. Best regards de John-G0WXU.
good general info on caps, thanks for uploading!
That was perfect! I now feel I can finally get into some of these old record players and radios I have sitting around. You cleared up so many questions in this excellent, concise video. Thank you!
@7:25 & @50:56...I respectfully DIS agree...I was taught you NEVER go UNDER the original circuit design value of a cap, only OVER, so I would put a modern 68MFD cap there, or parallell a 3.3 mfd & a 47 mfd. to come up with 50.3 mfd, or go to justradios.com & order a correct 50 mfd cap. They have 'em in stock at 1.79 each!, OTHER than that, Bryan, I agree with the whole rest of your video about caps.
That was a very helpful video for me
Nice work and thanks for sharing your knowledge :)
Thank you for sharing your brain stuff. Mr. Pete 222 as Tubalcain has done the same. He even sounds like you. Check out his stuff as he has over 600 videos about metal shop knowledge. Note his camera, mounting, movement, and other techniques as he has practiced so much. Remember the obvious: my grandchildren haven't got a clue what's in your hands. History that is. Electronics as well. I note the many spiders who shit all over the braided cloth wires that today's ribbon cable has done away with. (Like my grandfather telling about how to care for his horse before and after going to town.) MAKE MORE!
Don't always assume that a can-style multi-section capacitor has a common negative terminal.
I recently re-capped an old Zenith AM/SW export set. It had a 2-section cardboard insulated can capacitor with 3 terminals on the bottom along with a insulated metal can terminal. The markings indicated it had 2 caps which were both 10 uF / 450V but there were 3 terminals on the bottom. The radio had wires & components connected to all 3 terminals as well as the insulated metal can terminal. What was the 3rd terminal used for? It turned out, that 3rd unmarked terminal was the negative terminal for one of the caps. The other cap used the insulated metal terminal for negative. So in essence, the can housed 2 independent capacitors. The part in question was a Zenith part number 22-1056C.
In this same radio there was also a domino-style component with 3 colored dots (blue-red-black). What I thought was a 62 pF cap turned out to be a 62 ohm wirewound resistor.
Lesson learned: Never assume what appears to be obvious.
about 7 years ago I was looking to sell a Univox 60watt head. It worked fairly well except when the volume was turned down it had a hum. I think, from watching your videos that it was likely a capacitor, perhaps a filter capacitor. It was a 3 or 4 tube unit. The guy who was buying it told me the hum meant the power transformer was bad. I think I was only asking $35. Thinking back, if it was the power transformer, how could it hum? Anyway, it went to someone who apparently wanted it bad enough to lie and I only wanted it to go to a good home. I had been using it to power my monitor. I'm a drummer.
Excellent video and tutorial on replacing capacitors in old radios. Thank you!
Thank you so much for creating this video. I started restoring a Bogen RP-235 last month and you covered about half a dozen questions I had just by walking through this process.
Thanks for your direction! I had no idea what those words on the capacitor meant and how to replace it.
I have a 3 part capacitor 100/300 75/300 and 50/24 I've tried to find nichicon capacitors I can't find any in those values help
Because modern caps are a lot smaller than the old ones with similar ratings, it's a simple matter to cut off the top of the old cap, pull out the guts, and use the can to house the replacements. The cut off top can be epoxied back on, or for a more solid sealing back up, make a plug from a wood dowel and epoxy it in place. This technique retains the original appearance, and doesn't take up any space. With a little creativity, the repaired cap can be made to look identical to its original appearance, which may be important to collectors of old gear.
Three wire power cord big no-no in vintage tube amps. Just a polarized two wire only.
You’ll have a annoying little hum when you are done!
Thank you, great video.. for me being a newbie, it seems there is no way to test a capacitor while it is hooked up to other pieces of the equipment...?
great layout and plan much appreciated
Thanks for covering this. Got an old Fisher console I need to tackle. Great job.
I don't know why I am watching this. I am closer to death than starting to repair old radios again.
as a cathode bypass capacitor where does the capacitor actually send the current?
Great video Bryan. Never hurts to have a big collection of terminal strips to securely attach replacement capacitors
to a chassis. Never ceases to amaze me how many times I have seen new stuff flopping around with electrical tape
wrapped around the soldered connections.
Lots of good advice in here; especially for people just starting out replacing cap cans.
Thank you SO much for doing this video! I really needed a tutorial on caps. I am not an expert, I am learning. This will help me alot.
Thank you! Very informative and thorough video.
Hi, 'Thanks so much for this video. I have an old 1946 Philco radio-phonograph that I have been struggling over. I have never repaired one before. I was confounded with the "capacitors." You answered all my questions. I am listening to music right now. Thanks.
Yes this was very helpful thanks.
Thank you for the information...
really appreciate! Thank you.
Thank You, always look forward to your video .
Very clear and detailed explanations, one of the best guides on the tube! Thanks for sharing your knowledge.
I’m refurbishing a 1960ish reel to reel tape recorder,but having trouble obtaining a Electrolytic capacitor.marked 60+50uF 300vdc wkg .it reads red (terminal)50uF outer.yellow 50uF. The length is approximately 3 inch.round alloy case about 1 inch across,Has anyone an Email address where I could possibly obtain this! I’m in theUK.having no luck.Or can capacitors values be made up in series connection useing two.Thanks.
This was very helpful. I have a 1956 Realist FM tuner that had a 40/40/40 MF can and the cheapest I could find was $50 so I'll be doing your method with 3 seperate caps
Thanks for the video. I've been missing them.
hi my name is ted, i like your video a lot this is pointing me in the correct direction i am very new at this at least now i understand how capicators work with the values and voltage i thank you very much for explaining it perfectly, i do have one question for you to answer for me the can capicators do all the values need to be the same for example i have a 1941 GE radio phonograph with the audio filter can capicator the values are 30MFD 350VDC half circle 30MFD 350VDC square 15MFD 250VDC triangle and a 20MFD 25VDC with no symbol if i need to replace this do the values need to stay the same as on the original?? please let me know
thanks
ted
The working voltages of a cap can be considerably higher in the older tube and discrete transistor stuff but for modern switching power supplies like in flat TV sets, computers, and modern 2-way radios you want them to match what came out and this is due to the ESR values and the circuits designs. You go too high your can cause the circuit to become unstable and unreliable... Also it is important to pay attention to the temperature rating also and you want to match that up as well..
Great video, I need all the help I can get.
Very helpful. 👍 I'm restoring a 1947 Firestone radio-phono and was wondering how to replace the multi-section can capacitor. The amp works amazingly well with all the original parts, but after 75+ years since all the capacitors were made it would be good to replace them so the radio-phono can be used another 75 years.
the working voltage is soo true. i ordered wrong voltage. 160s for 450 lines. wow my 1st cap blowing up.. stinky lil bugger.. smoke filled the room lol was scary and funny at same time lol
Worth every minute, thank you.
Great advice. It's tempting for a manufacturer to cut corners by going with a cheaper cap--they're buying a million of them. For those of us buying a few, it's no problem spending a little more.
Good sir, I was wondering if you had a source for any Singer TV schematics. I have an Singer H8 101 in need of repair, but I an unable to find documentation online.
Excellent explanations, just what I was looking for regarding multi-section can capacitor.
Excellent .... a lot learned ! :-)
Excellent video. Thanks for the tips. Learned many things. 73, YS1RS.
Update. I just replaced the multi-section capacitor in a 1954 RCA AM table radio using the information in this video. I knew it was bad, but was not completely clear on how to replace it, and this video cleared things up a lot!
hi guys, the greatest success that I have had was by following the Gregs Electro Blog (just google it) without a doubt the no.1 course that I've tried.
I always appreciate your thoroughness and clear explanations. Thank you for sharing with us.
Wow. Now I can magically fix anything by changing the capacitors!
Not really. There are lots of other things, besides capacitors, that can fail and cause problems.
+radiotvphononut Of course. There's a community of radio enthusiasts that believe replacing the caps fixes everything. I've had a person replace all the caps in a radio only to find they were all good and a bad resistor was under biasing an AF amplifier transistor.
I've seen that lots of times. Some people are very good at changing capacitors; but, when they do so and the set still does not work, they are lost because they know zero about how a circuit works or how to troubleshoot it.
I don't really see anything wrong with that. I myself have no electronic knowledge whatsoever so if I or someone else can fix something by simply changing the capacitors then I think that's great.
+VideoTape What radiotvphononut and I were getting at was a lot of people believe changing capacitors is a fix-all solution when it comes to vintage and antique electronics. But, sometimes this isn't always the case. I had an AA5 that was giving me problems even with all new caps. Turned out the oscillator capacitor (which is ganged to the tuning capacitor) had shorted plates!
Hi, have you ever heard of Cellgrave receivers? If so do you know anythin about them and are worth savin.
would you know how to remove the amplifier out of a magnovox console stereo model pf 6354? it's a dual knob volume control and also is equipped with a eight track
I like how you layed out the schematic for what you were doing. - you've unstuffed the mysteries of can caps for me - and revealed the simplicity of terminal strips. THANKS!
Great video. EXACTLY what I was looking for. How to replace an old multicap with several new ones. Excellent tutorial.
I kinda groaned when I saw the length of the video, but theres not a second wasted - chock full of capacitor goodness - a million awesome tips...
Ty for this video....
Very complete, well done!!
Thanks for the great information! I will have to do this on my old Heathkit amature radio equipment that uses the old metal can capacitors. I prefer to leave them in place so the chassis looks original as viewed from the topside.
*5* STAR tutorial on Multisectional Capacitors and what can be used to replace them. Thank you sir.
Excellent video. I know its 4 years old, but well worth the time to look at and learn. Thank you.
Very informative video with lots of info on multi section can capacitors. I'll definitely be watching this several times. I question how easy any future maintenance of that four cap section would be. It's seems quite cramped for space in there.
Great video! please keep them coming!One note about radial capacitors: the positive lead is longer than the negative one.Best Regards,Moshe.
Very interesting!!!!
What do you do if the originals were 6 volts, and vary from 5-50 uF?
Thanks for the video. I had been looking for etched in symbols on the bottom of a can capacitor and didn't even think to look at the cuts in the phenolic where the leads come through and there they were.
Thank you for the information, I'm new at this and trying to get a 1946 Stewart Warner radio to stop humming.
I never thought you could make an hour long tutorial on how to change a cap, but I have been proven wrong.
Thanks very much for going though all the effort in producing this definitive video on electrolytic capacitor replacement.
I do the same thing re: buying capacitors , in short when I get a better value package I get a whole bunch
Great video !!!!
butchered it.
Bryan 2 weeks ago why does it take so long to upload a new video? I like all the repair videos you use upload more new video's
absolutely outstanding video. this is exactly what i needed!!! thanks!!!!!
Awesome Man
Thanks bro
Excellent video. Thanks look forward to seeing more.
I would like to thank you for all your helpful information, in restoring antique radios.
Thanks, my first radio I'm going to repair has this problem.
Thank you for this video. I was looking for some answers and i found them in your tutorial.
Good video. I have been doing this since 1970 and I still learned some new ideas!
Why in the hell, Would anyone give this video a thumbs down?
Good advice
ive got a three section im still driving myself up a wall to fix!
Where is your favorite place to find old tube radios.
Thank you very much for your time and help.
Glad you still making videos, they help a lot.
Do you use heat sinks when soldering?
Thank you Bryan! Great teaching.