RCA T8-18

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

Linear Mode

RCA T8-18

~~mikethedruid~~
Banned

Posts: 1,824
Threads: 114
Joined: Jul 2014
City: Sneedville, TN

#41

09-29-2019, 01:31 PM

Two ways, one more accurate than the other. If there are no signs of a tube shield on the chassis for the RF, mixer-oscillator, or both if separate, IF, and detector-AVC tubes, then it probably wants metal tubes. The other way is to look at the schematic, and see if the shield pin is connected to chassis ground, or is used as a floating tie point. If a tie point, it uses GT, if tied to chassis it uses metal. Pin 1 is usually the shield pin in metal tubes. To be certain look at the data sheets for the tube number with and without the G or GT.

Find

« Next Oldest | Next Newest »

Thread Closed

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

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Philco model 38 code 121 not receiving signal.
So one last question before I finish this radio. Regarding the speaker and output transformer. I salvaged the original o...Stormlord5500 — 09:31 AM
462ron
It’s on the bottom of the homepage of our Philcoradio.com homepage! Ron462ron — 07:20 AM
Model 70 Cabinet Trim
Steve might have some trim left. Not sure he is making anything.morzh — 06:12 AM
Model 70 Cabinet Trim
Hello musar, First all welcome to the forum and yes that is true that steve stopped making trim . Sincerely Richar...radiorich — 12:13 AM
Model 70 Cabinet Trim
I have recently come into possession of a Model 70. The trim around the base needs to be replaced. If this were years ...musar — 12:07 AM
philcorepairbench.com - shadow-meter
Anyone know of a way to recover these files from the repair bench? Thanks. fenbach — 11:16 PM
Philco model 38 code 121 not receiving signal.
That's true. Of course If I were to get a vtvm I'd probably have to sink money in to it to get it working right. Probabl...Stormlord5500 — 08:44 PM
Philco model 38 code 121 not receiving signal.
A DMM is good enough. One rarely has to measure indictance, but if you do, short of getting a serious LCR meter (I hav...morzh — 07:35 PM
Testing a speaker and output transformer Trutone A2-G
You guy's are right on. I found a broken wire on the speaker plug that I replaced and all is well now. Have better volu...murf — 03:43 PM
Philco model 38 code 121 not receiving signal.
I need to get a vtvm. I think that little component tester is just more accurate. Plus it shows the inductance which is ...Stormlord5500 — 03:07 PM

Who's Online
There are currently no members online.

Login
Username:
Password:	Lost Password?
	Remember me