Signal Injection Question

Thread Rating:

0 Vote(s) - 0 Average
1
2
3
4
5

Linear Mode

Signal Injection Question

David
Phorum Expert

Posts: 1,191
Threads: 25
Joined: Jan 2014
City: Wellborn Florida

#10

12-24-2017, 10:01 PM

Looking at the sch on Nos. air going left to right 7A8, then a 7B7 as a sub for the 14A7, third 7C6 as a sub for the 14B6.Fourth tube 50L6. Then a 35Y4 Rect, I would look to see if some one has added a resistor in the filiment string to handle the extra 12 volts. and see if it is correctly installed and not dropping the B plus voltage.
http://www.nostalgiaair.org/pagesbymodel...013591.pdf

Find

« Next Oldest | Next Newest »

Messages In This Thread

Signal Injection Question - by Welder - 12-24-2017, 06:02 AM

RE: Signal Injection Question - by Phlogiston - 12-24-2017, 11:13 AM

RE: Signal Injection Question - by Welder - 12-24-2017, 11:51 AM

RE: Signal Injection Question - by Phlogiston - 12-24-2017, 12:00 PM

RE: Signal Injection Question - by morzh - 12-24-2017, 12:07 PM

RE: Signal Injection Question - by Radioroslyn - 12-24-2017, 12:41 PM

RE: Signal Injection Question - by Welder - 12-24-2017, 03:17 PM

RE: Signal Injection Question - by morzh - 12-24-2017, 04:41 PM

RE: Signal Injection Question - by Welder - 12-24-2017, 06:20 PM

RE: Signal Injection Question - by David - 12-24-2017, 10:01 PM

RE: Signal Injection Question - by David - 12-24-2017, 10:12 PM

RE: Signal Injection Question - by morzh - 12-24-2017, 11:45 PM

RE: Signal Injection Question - by Welder - 12-25-2017, 05:49 AM

RE: Signal Injection Question - by Welder - 12-25-2017, 05:54 AM

RE: Signal Injection Question - by morzh - 12-25-2017, 07:41 PM

RE: Signal Injection Question - by Electrothaumaturgist - 12-25-2017, 08:26 PM

RE: Signal Injection Question - by Welder - 12-25-2017, 10:25 PM

RE: Signal Injection Question - by morzh - 12-25-2017, 10:37 PM

RE: Signal Injection Question - by Welder - 12-26-2017, 07:12 AM

RE: Signal Injection Question - by morzh - 12-26-2017, 11:59 AM

RE: Signal Injection Question - by Welder - 12-26-2017, 09:50 PM

RE: Signal Injection Question - by morzh - 12-26-2017, 10:33 PM

RE: Signal Injection Question - by Radioroslyn - 12-27-2017, 01:08 AM

RE: Signal Injection Question - by Welder - 12-27-2017, 07:10 AM

RE: Signal Injection Question - by morzh - 12-27-2017, 10:23 AM

RE: Signal Injection Question - by Welder - 12-27-2017, 01:37 PM

RE: Signal Injection Question - by oldswab37 - 12-27-2017, 04:37 PM

RE: Signal Injection Question - by Welder - 12-27-2017, 06:04 PM

RE: Signal Injection Question - by morzh - 12-27-2017, 06:09 PM

RE: Signal Injection Question - by Welder - 12-27-2017, 07:47 PM

RE: Signal Injection Question - by morzh - 12-28-2017, 01:02 AM

RE: Signal Injection Question - by Welder - 12-28-2017, 05:19 AM

RE: Signal Injection Question - by morzh - 12-28-2017, 12:56 PM

RE: Signal Injection Question - by morzh - 01-03-2018, 10:10 PM

RE: Signal Injection Question - by Welder - 01-04-2018, 05:51 AM

RE: Signal Injection Question - by morzh - 01-04-2018, 02:50 PM

RE: Signal Injection Question - by Welder - 01-04-2018, 06:41 PM

RE: Signal Injection Question - by morzh - 01-04-2018, 06:52 PM

RE: Signal Injection Question - by Welder - 01-08-2018, 05:41 PM

RE: Signal Injection Question - by morzh - 01-08-2018, 05:48 PM

RE: Signal Injection Question - by Welder - 01-08-2018, 07:05 PM

RE: Signal Injection Question - by jcassity - 01-17-2018, 10:07 AM

RE: Signal Injection Question - by morzh - 01-17-2018, 10:53 AM

RE: Signal Injection Question - by jcassity - 01-17-2018, 11:13 AM

RE: Signal Injection Question - by morzh - 01-17-2018, 02:50 PM

View a Printable Version

Users browsing this thread: 7 Guest(s)

Recent Posts
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM
Philco Predicta Siesta picture over time getting dimmer
I found that the wire insulation was burnt. The fly back needs corona dope! Why would someone put that there?Platinumblonde36 — 01:09 AM
Philco Predicta Siesta picture over time getting dimmer
This is what it looked like beforePlatinumblonde36 — 01:01 AM
Philco Predicta Siesta picture over time getting dimmer
Platinumblonde36 — 12:58 AM
Philco Predicta Siesta picture over time getting dimmer
Platinumblonde36 — 12:57 AM
Philco Predicta Siesta picture over time getting dimmer
I'm finding some strange things in my set and for the most part it's also original, so I need to start going over everyt...Platinumblonde36 — 12:55 AM

Who's Online

There are currently 5031 online users. [Complete List]
» 1 Member(s) | 5030 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me