Push Pull tube amp kit from China

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

Thread Rating:

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

Linear Mode

Push Pull tube amp kit from China

TV MAN
Phorum Expert

Posts: 1,205
Threads: 84
Joined: Jan 2014
City: Annapolis, IL State, Province, Country: USA

#20

03-11-2022, 03:24 PM

I think I found it! I reversed the output transformer ground and feedback and it eliminated the ocsillation and also eliminated the hum and hiss. It "appears" the ground and 8 ohm wires on the output transformer are connected backwards inside the transformer or the plate leads are reversed. So I'll reverse those permanently and do further testing. With the feedback disconnected the gain and distortion are a lot more along with other noise.

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

Find

« Next Oldest | Next Newest »

Messages In This Thread

Push Pull tube amp kit from China - by TV MAN - 02-03-2022, 10:03 PM

RE: Push Pull tube amp kit from China - by TV MAN - 02-03-2022, 10:18 PM

RE: Push Pull tube amp kit from China - by TV MAN - 02-05-2022, 12:13 PM

RE: Push Pull tube amp kit from China - by Ron Ramirez - 02-05-2022, 12:39 PM

RE: Push Pull tube amp kit from China - by John Bartley - 02-05-2022, 03:36 PM

RE: Push Pull tube amp kit from China - by morzh - 02-05-2022, 05:27 PM

RE: Push Pull tube amp kit from China - by radiorich - 02-05-2022, 05:46 PM

RE: Push Pull tube amp kit from China - by TV MAN - 02-07-2022, 03:20 PM

RE: Push Pull tube amp kit from China - by Mondial - 02-07-2022, 03:44 PM

RE: Push Pull tube amp kit from China - by morzh - 02-13-2022, 08:23 PM

RE: Push Pull tube amp kit from China - by TV MAN - 03-02-2022, 01:04 PM

RE: Push Pull tube amp kit from China - by radiorich - 03-03-2022, 09:02 AM

RE: Push Pull tube amp kit from China - by Steve D - 03-03-2022, 05:32 PM

RE: Push Pull tube amp kit from China - by EdHolland - 03-04-2022, 02:39 PM

RE: Push Pull tube amp kit from China - by morzh - 03-04-2022, 08:34 PM

RE: Push Pull tube amp kit from China - by TV MAN - 03-09-2022, 10:21 AM

RE: Push Pull tube amp kit from China - by TV MAN - 03-10-2022, 12:40 PM

RE: Push Pull tube amp kit from China - by radiorich - 03-10-2022, 10:02 PM

RE: Push Pull tube amp kit from China - by TV MAN - 03-11-2022, 02:18 PM

RE: Push Pull tube amp kit from China - by TV MAN - 03-11-2022, 03:24 PM

RE: Push Pull tube amp kit from China - by TV MAN - 03-13-2022, 11:31 PM

RE: Push Pull tube amp kit from China - by Mondial - 03-14-2022, 12:36 AM

RE: Push Pull tube amp kit from China - by radiorich - 03-14-2022, 08:13 AM

RE: Push Pull tube amp kit from China - by TV MAN - 03-14-2022, 01:53 PM

RE: Push Pull tube amp kit from China - by Mondial - 03-14-2022, 02:18 PM

RE: Push Pull tube amp kit from China - by TV MAN - 03-22-2022, 08:55 AM

RE: Push Pull tube amp kit from China - by Mondial - 03-22-2022, 09:31 AM

RE: Push Pull tube amp kit from China - by TV MAN - 03-22-2022, 11:25 PM

RE: Push Pull tube amp kit from China - by radiorich - 03-23-2022, 01:05 AM

RE: Push Pull tube amp kit from China - by TV MAN - 03-23-2022, 11:35 PM

RE: Push Pull tube amp kit from China - by radiorich - 03-24-2022, 12:29 AM

RE: Push Pull tube amp kit from China - by TV MAN - 01-08-2025, 04:29 PM

RE: Push Pull tube amp kit from China - by morzh - 01-08-2025, 06:36 PM

RE: Push Pull tube amp kit from China - by TV MAN - 01-08-2025, 07:56 PM

RE: Push Pull tube amp kit from China - by radiorich - 01-08-2025, 11:00 PM

RE: Push Pull tube amp kit from China - by MrFixr55 - 01-09-2025, 08:51 AM

RE: Push Pull tube amp kit from China - by TV MAN - 01-09-2025, 03:27 PM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
Philco model 38 code 121 not receiving signal.
Hello Stormlord, Well done on rewinding that coil it turned fairly good for your first one. Sincerely Richardradiorich — 09:12 PM
Philco model 38 code 121 not receiving signal.
Well here it is. It ain't pretty, but hopefully it'll work. I checked it with my DMM on continuity and it keeps and r...Stormlord5500 — 08:56 PM
Philco 42-345 Restoration/Repair
Yes, 57 is an electrolytic cap that should be 12 mfd 400 volts according to the parts list from the Phorum library schem...RodB — 06:01 PM
Philco 42-345 Restoration/Repair
Looks like if I am reading it correctly it looks like the silver capacitor#57 that appears to be a replacement is of a l...osanders0311 — 05:09 PM
Philco model 38 code 121 not receiving signal.
Thanks Arran. Yeah this plastic is pretty thin. It's a little thinner than the original stuff. It kinda reminds me of p...Stormlord5500 — 04:37 PM
Testing a speaker and output transformer Trutone A2-G
The equivalent of one short turn is basically the same as that of a shorted load. If it is the primary's turn, then the ...morzh — 03:53 PM
Testing a speaker and output transformer Trutone A2-G
I've never had an output transformer become shorted, the failure mode is usually an open primary, or in a center tapped ...Arran — 03:52 PM
Philco model 38 code 121 not receiving signal.
As long as the plastic sheeting isn't too thick, I think that the thickness of photographic film would be just about rig...Arran — 03:19 PM
Philco model 38 code 121 not receiving signal.
Well why not! :lol:Stormlord5500 — 03:14 PM
Philco model 38 code 121 not receiving signal.
Good luck next thing you know you will be winding coils just for the fun of it. DavidDavid — 11:29 AM

Who's Online

There are currently 481 online users. [Complete List]
» 1 Member(s) | 480 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me