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RCA T8-18
#7

I traced out that condenser, and it is indeed a .01mfd on the schematic. Not only is it shielded, but the line running from one end of it to the volume control is also shielded, probably to keep noise out of the audio circuit, hum, that sort of thing. The other end ties into the AVC circuitry off the 2nd detector. My word they did a sloppy job assembling this thing, nothing really wrong, but pretty sloppy really. At least it isn't TOO crowded in there. I suppose one reason it appears sloppy is to keep all the component leads as short as possible in the RF and IF sections, which is actually normal practice. Also, some of these old BED resistors don't look like they are correct in value, although original. I'll just have to look carefully at them all and test them, and try to sort it out. Hopefully they will be close enough so I won't have to replace any. Philco seems to have done a neater job, and used resistors that were marked more clearly. At least this one isn't as bad as that 18T I worked on a while ago which had rubber covered wire with melting insulation, literally, turning to sticky goo, and crowded as all get out.


Messages In This Thread
RCA T8-18 - by mikethedruid - 09-01-2019, 10:06 PM
RE: RCA T8-18 - by mikethedruid - 09-02-2019, 01:24 AM
RE: RCA T8-18 - by Ron Ramirez - 09-02-2019, 06:23 AM
RE: RCA T8-18 - by mikethedruid - 09-02-2019, 10:47 PM
RE: RCA T8-18 - by Ron Ramirez - 09-03-2019, 05:20 AM
RE: RCA T8-18 - by mikethedruid - 09-03-2019, 12:45 PM
RE: RCA T8-18 - by mikethedruid - 09-03-2019, 11:50 PM
RE: RCA T8-18 - by mikethedruid - 09-05-2019, 03:58 PM
RE: RCA T8-18 - by mikethedruid - 09-05-2019, 05:46 PM
RE: RCA T8-18 - by Eliot Ness - 09-06-2019, 03:05 AM
RE: RCA T8-18 - by EdHolland - 09-06-2019, 06:19 PM
RE: RCA T8-18 - by mikethedruid - 09-06-2019, 07:48 PM
RE: RCA T8-18 - by mikethedruid - 09-06-2019, 10:02 PM
RE: RCA T8-18 - by Jake Blake - 09-07-2019, 01:04 PM
RE: RCA T8-18 - by mikethedruid - 09-09-2019, 01:40 AM
RE: RCA T8-18 - by Ron Ramirez - 09-09-2019, 07:24 AM
RE: RCA T8-18 - by mikethedruid - 09-09-2019, 09:41 AM
RE: RCA T8-18 - by mikethedruid - 09-10-2019, 09:08 AM
RE: RCA T8-18 - by Jake Blake - 09-10-2019, 12:33 PM
RE: RCA T8-18 - by mikethedruid - 09-10-2019, 01:01 PM
RE: RCA T8-18 - by Jake Blake - 09-10-2019, 01:04 PM
RE: RCA T8-18 - by mikethedruid - 09-10-2019, 02:17 PM
RE: RCA T8-18 - by Jake Blake - 09-10-2019, 02:30 PM
RE: RCA T8-18 - by mikethedruid - 09-10-2019, 05:19 PM
RE: RCA T8-18 - by mikethedruid - 09-10-2019, 07:32 PM
RE: RCA T8-18 - by Paul Philco322 - 09-10-2019, 08:27 PM
RE: RCA T8-18 - by Jake Blake - 09-10-2019, 09:13 PM
RE: RCA T8-18 - by Dan Walker - 09-12-2019, 08:17 PM
RE: RCA T8-18 - by mikethedruid - 09-12-2019, 09:06 PM
RE: RCA T8-18 - by Ron Ramirez - 09-12-2019, 09:21 PM
RE: RCA T8-18 - by mikethedruid - 09-12-2019, 10:30 PM
RE: RCA T8-18 - by Ron Ramirez - 09-13-2019, 05:43 AM
RE: RCA T8-18 - by mikethedruid - 09-19-2019, 03:42 PM
RE: RCA T8-18 - by mikethedruid - 09-24-2019, 11:36 PM
RE: RCA T8-18 - by mikethedruid - 09-25-2019, 05:55 PM
RE: RCA T8-18 - by mikethedruid - 09-25-2019, 10:54 PM
RE: RCA T8-18 - by mikethedruid - 09-26-2019, 02:45 AM
RE: RCA T8-18 - by mikethedruid - 09-26-2019, 04:42 PM
RE: RCA T8-18 - by Jake Blake - 09-29-2019, 12:20 PM
RE: RCA T8-18 - by Ron Ramirez - 09-29-2019, 01:28 PM
RE: RCA T8-18 - by mikethedruid - 09-29-2019, 01:31 PM
RE: RCA T8-18 - by Jake Blake - 09-29-2019, 01:50 PM
RE: RCA T8-18 - by Ron Ramirez - 09-29-2019, 02:08 PM
RE: RCA T8-18 - by Jake Blake - 09-30-2019, 09:07 PM
RE: RCA T8-18 - by mikethedruid - 09-30-2019, 10:49 PM
RE: RCA T8-18 - by mikethedruid - 10-01-2019, 07:04 PM
RE: RCA T8-18 - by Jake Blake - 10-01-2019, 08:58 PM
RE: RCA T8-18 - by mikethedruid - 10-02-2019, 06:12 PM
RE: RCA T8-18 - by Jake Blake - 10-02-2019, 08:32 PM
RE: RCA T8-18 - by mikethedruid - 10-03-2019, 01:59 PM
RE: RCA T8-18 - by mikethedruid - 10-03-2019, 04:19 PM
RE: RCA T8-18 - by Eliot Ness - 10-03-2019, 06:25 PM
RE: RCA T8-18 - by mikethedruid - 10-04-2019, 04:56 PM
RE: RCA T8-18 - by Jake Blake - 10-04-2019, 05:12 PM
RE: RCA T8-18 - by mikethedruid - 10-06-2019, 07:05 AM
RE: RCA T8-18 - by Jake Blake - 10-07-2019, 09:54 PM



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