I'm sure you agree that you should also check the resistors . and replace any that are higher than tolerance that could help with reception allowing better voltages You must have a lot of interference in that shop cause there was a lot of noise
If you have voltage or the Neon tester lights up...Just reverse the plug in the wall socket and test again to see if there is any voltage of flashing light...Thanks...WB9RTZ...Freddie...
In the radio and TV business we always used a device called an isolation transformer to protect us from shock the hazard...If I didn't have a isolation transformer, I would use a meter or Neon tester to check if the chases was hot...Just place one of the probes to the metal chases and the other one to something that you know is grounded.
When working with these type radios you must be very careful, since one side of the AC cord is directly connected to the chases which could potently electrocute you if the hot side of the AC outlet happens to be connected to the chases and you become grounded...for instance, if you are barefoot and working on concrete or touching something metal that's grounded.
I didn't explain the connection of the new eletrolytic caps because of the time on the video. Just look at the original cap and see what the 3 values are coming from each color wire. In this case it was 30,25 & 20 mf's. If your not able to understand swaping out the old cap with the new, then you shouldn't be working on these radios. This is about as simple as it gets when troubleshooting.
The capacitor that was removed was a 3 section cap, 3 capacitors in one package. He used 3 separate caps to replace it. There are potentially lethal voltages in capacitors. Drain the power from any capacitor before attempting to replace it.
There is high voltage. But i have worked on tons of tube amps and radio's and never had to discharge any capacitor. I'm just lucky i guess. A double insulated wire cutters is needed for the job,And its what i use. But for people that foolish and have a death wish. Go ahead and touch the bare wires in a tube radio.
Kudos on the vid, but as dave251430 says, a lot was skipped over. You showed the 3 new capicators and the 1 old one. What did you do? Series the new ones? Where did those 4 wires connect? Thanks
@toadabc If you could'nt figure out how to do it with what he told you ,you should;nt even attempt fixing old radios....Sorry my comment might hurt you, but better me, and not the radio.....
Cool Video. Would you be able to in a future video show the step-by-step installation of the new capacitors to replace the original capacitor. That would be great as well.
Much appreciate your vid and keep up the Great Work. !
My opinion is a bad cap also.. today I just finished reparing the same model, but the electrolitic that I replaced only had 3 wires, ground,red 50/150, green 30/150.... however, I need to replace dial cord. Great video, hope to see next one step by step! Thanks!!
I'm sure you agree that you should also check the resistors . and replace any that are higher than tolerance that could help with reception allowing better voltages You must have a lot of interference in that shop cause there was a lot of noise
jesse1779 1 month ago
Sorry about the 3 part post...Freddie
fred58 2 months ago
If you have voltage or the Neon tester lights up...Just reverse the plug in the wall socket and test again to see if there is any voltage of flashing light...Thanks...WB9RTZ...Freddie...
fred58 2 months ago
In the radio and TV business we always used a device called an isolation transformer to protect us from shock the hazard...If I didn't have a isolation transformer, I would use a meter or Neon tester to check if the chases was hot...Just place one of the probes to the metal chases and the other one to something that you know is grounded.
fred58 2 months ago
When working with these type radios you must be very careful, since one side of the AC cord is directly connected to the chases which could potently electrocute you if the hot side of the AC outlet happens to be connected to the chases and you become grounded...for instance, if you are barefoot and working on concrete or touching something metal that's grounded.
fred58 2 months ago
i wish i would have found this video before me and my dad, mostly dad, went in and started replacing the capacitors like mad men
juniorfan93 7 months ago
I would replaced all those paper capacitors.
DrMR2002 1 year ago
nice find
Shurbovi 1 year ago
did u just zip tie the new ones together? or hot glue them or soemthing?
Subaro0o 1 year ago
I didn't explain the connection of the new eletrolytic caps because of the time on the video. Just look at the original cap and see what the 3 values are coming from each color wire. In this case it was 30,25 & 20 mf's. If your not able to understand swaping out the old cap with the new, then you shouldn't be working on these radios. This is about as simple as it gets when troubleshooting.
Good Luck
Terry
Thouchins 1 year ago
Welcome-to the World of interference?
Cell phone repeaters , High Tension feed lines , microwave ovens , computers ---etc!
For people living in cities------scarey.
Watching videos on YouTube------most amateur radio operators that get good contacts--are miles from-------"civilization"?
What do we get?-in big cities?-----------grid lock on the highways and------"tons of manmade noise? "
Oh!!-we pay for this "pleasure!! "
Steve.
HobieTyourtube 2 years ago
The capacitor that was removed was a 3 section cap, 3 capacitors in one package. He used 3 separate caps to replace it. There are potentially lethal voltages in capacitors. Drain the power from any capacitor before attempting to replace it.
HawgsDaddy 3 years ago
There is high voltage. But i have worked on tons of tube amps and radio's and never had to discharge any capacitor. I'm just lucky i guess. A double insulated wire cutters is needed for the job,And its what i use. But for people that foolish and have a death wish. Go ahead and touch the bare wires in a tube radio.
kevykev38 2 years ago
Kudos on the vid, but as dave251430 says, a lot was skipped over. You showed the 3 new capicators and the 1 old one. What did you do? Series the new ones? Where did those 4 wires connect? Thanks
toadabc 3 years ago
@toadabc If you could'nt figure out how to do it with what he told you ,you should;nt even attempt fixing old radios....Sorry my comment might hurt you, but better me, and not the radio.....
randoloph1 1 year ago
Good Video! Thanks for posting it.
To what part of the radio's circuit did the bad cap belong?
Thanks.
RL Atlanta, GA USA
rlewis1946 3 years ago
Cool Video. Would you be able to in a future video show the step-by-step installation of the new capacitors to replace the original capacitor. That would be great as well.
Much appreciate your vid and keep up the Great Work. !
dave251430 3 years ago
that noise is just AM interference.
that's one of the main complaints about AM, it's easy to pickup noise.
Thouchins 3 years ago
Does that motor boating sound in the background (best heard between stations) come from equipment on your bench or is another cap bad?
KD5KZL
Joe
desertbard 3 years ago
My opinion is a bad cap also.. today I just finished reparing the same model, but the electrolitic that I replaced only had 3 wires, ground,red 50/150, green 30/150.... however, I need to replace dial cord. Great video, hope to see next one step by step! Thanks!!
Joe - k4jga
SilverMoonJoe 2 years ago