The other is mystery radio that i found a picture of on radio attic archives listed as a COPELY, unknown model.
I also replaced every cap, one at a time, had the tubes tested, and replaced two of them (i really need to get a tube tester, the local shop charges me between $3-5 each to test a tube). Played great for about an hour then everything went silent.. no tubes lighting, nada.. a mention was made to me that the ballast was probably shot.. an old 4 pin type.. not much luck finding one of these.
So, needless to say, I have two that I put a lot of time and effort into that are now sitting in the closet..sigh.. This newbie is getting pretty discouraged, and helpful hints or suggestion?
Batman
As i mentioned in a previous posting tonite, I have one project partially operating. I still have two other radios that are DOA despite my best novice efforts. I've tried finding other collectors in my local area (upstate NY) to no avail. Any ideas how a novice can get some hands-on experience with a fellow collector? The first project that I need help with is a RCA 9X-561 (atomic) radio.. received this one with no power cord, wax leaking inside the chassis. Replaced All caps, new power cord, had tubes tested (got one replaced), installed new bulbs. Powers up, tubes all light, no sound.. groan...
:
:The other is mystery radio that i found a picture of on radio attic archives listed as a COPELY, unknown model.
:I also replaced every cap, one at a time, had the tubes tested, and replaced two of them (i really need to get a tube tester, the local shop charges me between $3-5 each to test a tube). Played great for about an hour then everything went silent.. no tubes lighting, nada.. a mention was made to me that the ballast was probably shot.. an old 4 pin type.. not much luck finding one of these.
:
:So, needless to say, I have two that I put a lot of time and effort into that are now sitting in the closet..sigh.. This newbie is getting pretty discouraged, and helpful hints or suggestion?
::Don,
::Got the number off of the ballast? I am willing to share if I have what you need. Also, I faced similar challenge (I too am a semi-newbie)and I found that the mice really seem to enjoy the flavor of the varnish on audio transformers, test for continuity across the audio output transformer. There should be some continuity, and maybe even very little.Infinite is of course a bad transformer and if your lucky and have a big magnifying glass, you can unwrap a couple of turns and fix it. If it is bad and can't be repaired, you can buy a replacement from RadioDaze or Antique Electronic Supply.
::
::Batman
::
::As i mentioned in a previous posting tonite, I have one project partially operating. I still have two other radios that are DOA despite my best novice efforts. I've tried finding other collectors in my local area (upstate NY) to no avail. Any ideas how a novice can get some hands-on experience with a fellow collector? The first project that I need help with is a RCA 9X-561 (atomic) radio.. received this one with no power cord, wax leaking inside the chassis. Replaced All caps, new power cord, had tubes tested (got one replaced), installed new bulbs. Powers up, tubes all light, no sound.. groan...
:::
:::The other is mystery radio that i found a picture of on radio attic archives listed as a COPELY, unknown model.
:::I also replaced every cap, one at a time, had the tubes tested, and replaced two of them (i really need to get a tube tester, the local shop charges me between $3-5 each to test a tube). Played great for about an hour then everything went silent.. no tubes lighting, nada.. a mention was made to me that the ballast was probably shot.. an old 4 pin type.. not much luck finding one of these.
:::
:::So, needless to say, I have two that I put a lot of time and effort into that are now sitting in the closet..sigh.. This newbie is getting pretty discouraged, and helpful hints or suggestion?
Hi Don,
Look first at your Copley. All the tubes out indicates an open in the tube filament line, or a bad switch. DO NOT jump to the conclusion that the balast is bad. First check the tube filament continuity. It is easy with an ohm meter. Look up the tubes on this site. It will show what pins have the filament. Using an ohm meter check the filament pins for continutiy through the filament.
Usually octal tubes have filaments on pins 2 and 7, although common exceptions exist such as 6SQ7 and 5Y3. Miniatures are 3 and 4 for 7 pin and 4 and 5 for 9 pin. Lotals have filaments on 1 and 8.
I suspect you will find a tube with an open filament. Tubes are cheap. Replace it and odds are your radio will come back to life!
Be watchful of another tube failure. It could indicate that something is over-voltaging your tubes' filaments. We can help you with that if it happens.
With that one working you can then tackle the harder one. DO NOT tear apart the power transformer at this point. Your troubleshooting has not lead you to this.
All the Best,
Bill
As i mentioned in a previous posting tonite, I have one project partially operating. I still have two other radios that are DOA despite my best novice efforts. I've tried finding other collectors in my local area (upstate NY) to no avail. Any ideas how a novice can get some hands-on experience with a fellow collector? The first project that I need help with is a RCA 9X-561 (atomic) radio.. received this one with no power cord, wax leaking inside the chassis. Replaced All caps, new power cord, had tubes tested (got one replaced), installed new bulbs. Powers up, tubes all light, no sound.. groan...
:
:The other is mystery radio that i found a picture of on radio attic archives listed as a COPELY, unknown model.
:I also replaced every cap, one at a time, had the tubes tested, and replaced two of them (i really need to get a tube tester, the local shop charges me between $3-5 each to test a tube). Played great for about an hour then everything went silent.. no tubes lighting, nada.. a mention was made to me that the ballast was probably shot.. an old 4 pin type.. not much luck finding one of these.
:
:So, needless to say, I have two that I put a lot of time and effort into that are now sitting in the closet..sigh.. This newbie is getting pretty discouraged, and helpful hints or suggestion?