36-650 restoration

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

Thread Closed

Linear Mode

36-650 restoration

Bill Bacco
Member

Posts: 106
Threads: 12
Joined: Feb 2013
City: Monroeville, PA

02-13-2024, 01:38 PM

I noticed that the voltages on the Plates of most of the tubes are any where from 50 to 100V higher than the schematic lists.
I also noticed that the Shadow meter is pegged to one side and that there is about 40V across it.

The voltage out of choke (part #79) after the Rectifier (80) is at 303V.

All of the paper and electrolytic caps have been replaced.
Does anyone know if the schematic (attached) is correct?

It could be a resistor issue, there are a couple that seem to be quite a bit out of tolerance.

Any other thoughts are appreciated.

Thanks, Bill

Attached Files

Philco Service Bulletin 220.pdf Size: 2.65 MB Downloads: 394

(This post was last modified: 02-13-2024, 01:39 PM by Bill Bacco.)

Find

« Next Oldest | Next Newest »

Thread Closed

Messages In This Thread

36-650 restoration - by Bill Bacco - 02-12-2024, 02:12 PM

RE: 36-650 restoration - by klondike98 - 02-14-2024, 06:17 PM

RE: 36-650 Alignment - by RodB - 02-13-2024, 10:59 AM

RE: 36-650 Alignment - by Bill Bacco - 02-13-2024, 01:25 PM

36-650 High Plate Voltages - by Bill Bacco - 02-13-2024, 01:38 PM

RE: 36-650 High Plate Voltages - by morzh - 02-13-2024, 04:19 PM

RE: 36-650 High Plate Voltages - by Bill Bacco - 02-13-2024, 04:48 PM

RE: 36-650 Alignment - by morzh - 02-13-2024, 04:24 PM

View a Printable Version

Users browsing this thread: 1 Guest(s)

Recent Posts
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
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today. Soldered one in and had a successful first power-up. No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

Who's Online

There are currently 1656 online users. [Complete List]
» 1 Member(s) | 1655 Guest(s)

Login
Username:
Password:	Lost Password?
	Remember me