1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
PT-25 audio distortion
WyTex
Senior Member
****
Posts: 289
Threads: 42
Joined: Jan 2014
City: Jeffersonville State, Province, Country: PA
#13

12-20-2017, 06:16 PM
Update.  Replaced resistor #'s from the schematic #12 (2.2meg), #14(22k), #20(470k) and #21(130ohms)
Also found a .012 cap from previously replaced and should be a .01mfd
Resistor #18  (220k) tested at 223k
Audio is better but still distorted. 
Attached pic of electronic cleaner I had been using.
Find
« Next Oldest | Next Newest »


Messages In This Thread
PT-25 audio distortion - by WyTex - 12-19-2017, 12:45 PM
RE: PT-25 audio distortion - by morzh - 12-19-2017, 02:29 PM
RE: PT-25 audio distortion - by David - 12-19-2017, 04:08 PM
RE: PT-25 audio distortion - by WyTex - 12-19-2017, 04:09 PM
RE: PT-25 audio distortion - by Phlogiston - 12-19-2017, 04:37 PM
RE: PT-25 audio distortion - by morzh - 12-19-2017, 11:02 PM
RE: PT-25 audio distortion - by WyTex - 12-20-2017, 10:06 AM
RE: PT-25 audio distortion - by Steve Davis - 12-20-2017, 11:34 AM
RE: PT-25 audio distortion - by Phlogiston - 12-20-2017, 11:52 AM
RE: PT-25 audio distortion - by klondike98 - 12-20-2017, 12:01 PM
RE: PT-25 audio distortion - by Phlogiston - 12-20-2017, 03:28 PM
RE: PT-25 audio distortion - by klondike98 - 12-20-2017, 05:45 PM
RE: PT-25 audio distortion - by WyTex - 12-20-2017, 06:16 PM
RE: PT-25 audio distortion - by morzh - 12-20-2017, 06:46 PM
RE: PT-25 audio distortion - by klondike98 - 12-20-2017, 06:48 PM
RE: PT-25 audio distortion - by Arran - 12-21-2017, 01:52 AM
RE: PT-25 audio distortion - by morzh - 12-21-2017, 10:32 AM
RE: PT-25 audio distortion - by WyTex - 12-21-2017, 10:58 AM
RE: PT-25 audio distortion - by Phlogiston - 12-21-2017, 12:05 PM
RE: PT-25 audio distortion - by Radioroslyn - 12-21-2017, 12:33 PM
RE: PT-25 audio distortion - by morzh - 12-21-2017, 01:14 PM
RE: PT-25 audio distortion - by WyTex - 01-05-2018, 02:26 PM
RE: PT-25 audio distortion - by morzh - 01-05-2018, 06:09 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
trying to identify this wire type
Thanks to all for the feedback. As Arran said, it is probably an older replacement and yes it has a grid cap so I will ...georgetownjohn — 09:32 PM
trying to identify this wire type
It's possible that the red wire, actually a grid cap lead, is a very old replacement, I can't remember seeing a pre 1939...Arran — 09:18 PM
Gilfillan Brothers Car Radio?
Hi everyone,  Special thanks to Joe Rossi for tracking down this obscure radio and thanks to others who took up the hun...Antipodal — 08:15 PM
trying to identify this wire type
Here's one source for your wire of many. Take care and BE HEALTHY! Gary P.S. Can't get the right color you need? I ...GarySP — 06:40 PM
trying to identify this wire type
...and modern wire of the appropriate gauges and insulation V-rating (300V minimum, usually shown right on the wire) is ...morzh — 05:47 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
I have a question about this radio, is there anyone that has access to this radio that has an intact unmolested speaker ...captainclock1988 — 04:28 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Well what makes me confuse all of those companies is that all three of those companies (Setchell-Carlson, Stromberg-Carl...captainclock1988 — 04:21 PM
trying to identify this wire type
The red wire is rubber covered wire. The others are cotton braid over rubber often in colors or a tracer, also strand...Chas — 02:43 PM
trying to identify this wire type
Greetings Phorum members, Hope you can help me identify this type of wire in the photo I have attached.  I am not sure ...georgetownjohn — 01:53 PM
Philco 60 Squealing
All correct shields must be in place, all tubes correct no subs of any kind. Check any soldered, riveted ground conne...Chas — 01:24 PM

[-]
Who's Online
There are currently 5197 online users. [Complete List]
» 1 Member(s) | 5196 Guest(s)
Avatar

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration