Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Craftsman RC200 resto
#9

I recapped that "mystery" section with very little change. Having all the caps replaced with high voltage I turned my attention to finding the problem between the antenna and video amp. I injected an audio signal at the volume control and the sound is loud and clear. I seem to have a "mystery" tuner as well. The 200 shows 3 tubes, and the 201 2 tubes. Neither quite right. Mine has 2 tubes, and only 1 match the schematic of the 201. I have a 6BQ7 instead of a 6CB6 (which tested ok), and a 6J6, which did NOT test ok. That explained the no pic no sound from the antenna. I had a 5J6, so I plugged it in for a test until I can get the right tube. The pic and sound came right in once I found the right channel. I do have sync issues with both the H and V. I also had problems with the injected video signal. I tested the sync sep and amp tubes. I have a 6BF6 (which looks just like a 6AV6) instead of a 6C4 and the correct 12AU7. It tested a little low on one side so I subbed it with a strong tube with no change. This section has been recapped, but I do still have some low voltage caps yet to go as well as power supply cans. B+ is still a little low. So, I have some caps on order.

   
This Sangamo cap has a nice big crack!
   
The contrast and sync isnt quite as good off the tuner as from video injection at the grid of the 1st video amp. Yeah, you can see my poor 5J6 glowing down there. Dont worry, it wont have to endure the abuse after this test.  Icon_wink
   

If I could find the place called "Somewhere", I could find "Anything" Icon_confused

Tim

Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44


Messages In This Thread
Craftsman RC200 resto - by TV MAN - 12-25-2018, 05:41 PM
RE: Craftsman RC200 resto - by Paul Philco322 - 12-25-2018, 06:34 PM
RE: Craftsman RC200 resto - by Arran - 12-30-2018, 05:47 PM
RE: Craftsman RC200 resto - by TV MAN - 01-06-2019, 12:29 AM
RE: Craftsman RC200 resto - by TV MAN - 01-07-2019, 12:38 AM
RE: Craftsman RC200 resto - by TV MAN - 01-29-2019, 02:22 PM
RE: Craftsman RC200 resto - by TV MAN - 02-08-2019, 01:06 PM
RE: Craftsman RC200 resto - by KCMike - 02-08-2019, 01:15 PM
RE: Craftsman RC200 resto - by TV MAN - 02-09-2019, 03:39 PM
RE: Craftsman RC200 resto - by Arran - 02-10-2019, 02:39 AM
RE: Craftsman RC200 resto - by TV MAN - 02-11-2019, 09:38 PM
RE: Craftsman RC200 resto - by TV MAN - 07-04-2019, 10:43 AM
RE: Craftsman RC200 resto - by TV MAN - 03-13-2020, 09:23 PM
RE: Craftsman RC200 resto - by TV MAN - 03-16-2020, 02:12 PM
RE: Craftsman RC200 resto - by TV MAN - 11-25-2020, 09:06 PM
RE: Craftsman RC200 resto - by MrFixr55 - 11-28-2020, 12:30 AM
RE: Craftsman RC200 resto - by TV MAN - 12-03-2020, 11:18 PM
RE: Craftsman RC200 resto - by TV MAN - 12-13-2020, 04:21 PM
RE: Craftsman RC200 resto - by TV MAN - 12-31-2020, 02:46 PM
RE: Craftsman RC200 resto - by morzh - 12-31-2020, 04:29 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Zenith H725
The PSU filter cap arrived today (thank you USPS!) so I will work on that later. Meanwhile, I have the dial, speaker...EdHolland — 06:42 PM
Philco 610B oscillator wiring
Thanks Terry. After checking my notes I think I recorded about -10v at the 6A7 G4/control grid. The screen grid (G3 &...Tubester — 05:59 PM
The list of my radio & TV collection!
Magical chords of forgotten melodies, old nostalgic music on an old radio... Saturday night blues on the Mid-Waves on an...RadioSvit — 12:20 PM
Philco 42-345 Restoration/Repair
Thank you MrFixr55 the issue with this radio is that the internal coil antenna is missing and there was a wire in its pl...osanders0311 — 11:34 AM
Philco 610B oscillator wiring
Regarding the oscillator circuit which is comprised of the 6A7's cathode, control grid, and screen grid. These elements ...Radioroslyn — 10:33 AM
Philco 42-345 Restoration/Repair
Hi OSanders, First off, welcome to the Philco Phorum where Phine Phamily-Phriendly Pholks Phull of Philco Phacts and P...MrFixr55 — 08:41 AM
Philco 42-345 Restoration/Repair
Today I've been reading through the site trying to learn more about this radio. I also soldered the lose power cord cabl...osanders0311 — 08:24 PM
Philco 610B oscillator wiring
Thanks David! I do have that same later prodution model 610 schematic. I've also studied the Philco service bulletins fo...Tubester — 08:12 PM
Philco 610B oscillator wiring
Some info from Beitmans says late production. David   David — 06:06 PM
Restoring Philco 96
Oh wow! Just found this thread.  Brings me back to early days on this phorum.  I did a 96 back in 2017.  Thread here: ...rfeenstra — 06:05 PM

[-]
Who's Online
There are currently no members online.

>