Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Model 90 Stuck At One Volume Level
#16

Hi morzh,
Yes I can tune the radio and all stations are where they're supposed to be. Only one station (1260 AM) I'm right on top of the transmitter and it always comes in loud and clear. The others are out of Portland 35 miles away and over a small mountain range still come in but with this volume stuck in neutral they're faint.

I pulled the Det. Amp. and it stops playing.

Your last entry confused me a bit. "If you yank the det. and it "STOPS" playing... I'm sure you meant that if I yanked the Det. Amp. and it "KEPT" playing to proceed yanking? It stopped playing with the Det. Amp. out so I saw no need to proceed yanking tubes. Hope I was right.

Last night I found "NO CONNECTION" to one side of the 1st IF Compensating Condenser #11. The side that goes from the condenser to the 1st IF. Top cap wire was in place from the IF to the tube. So I made that connection but it made no difference in my current symptoms. Because of that I'm taking a fresh 11X17 schematic and going thru the whole radio again highlighting every circuit making sure it's right. I've done this 3 times. How did I miss it.Icon_redface

And I go by Pepper here because Johnny was already taken when I signed up. Call me what you will... Just not late for dinner.

Thanks morzh,
Pepper

"It's Nice To Be Nice To The Nice"
Major Frank Burns Mash 4077th


Messages In This Thread
Model 90 Stuck At One Volume Level - by Pepperoni - 04-12-2012, 04:54 PM
RE: Model 90 Stuck At One Volume Level - by morzh - 04-12-2012, 10:19 PM
RE: Model 90 Stuck At One Volume Level - by morzh - 04-14-2012, 03:44 PM
RE: Model 90 Stuck At One Volume Level - by morzh - 04-14-2012, 03:52 PM
RE: Model 90 Stuck At One Volume Level - by morzh - 04-14-2012, 07:16 PM
RE: Model 90 Stuck At One Volume Level - by morzh - 04-14-2012, 09:51 PM
RE: Model 90 Stuck At One Volume Level - by Pepperoni - 04-15-2012, 12:54 PM
RE: Model 90 Stuck At One Volume Level - by morzh - 04-15-2012, 01:04 PM
RE: Model 90 Stuck At One Volume Level - by morzh - 04-15-2012, 02:26 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM

[-]
Who's Online
There are currently 1431 online users. [Complete List]
» 1 Member(s) | 1430 Guest(s)
Avatar

>