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
Model 57 Doesn't Match Schematic
Pepperoni
Member
***
Posts: 160
Threads: 42
Joined: Apr 2011
City: New Port Richey State, Province, Country: Florida
#6

11-10-2012, 08:43 PM
Well that solves that mystery. There is a short wire that is on the oscillator that wraps around the wire coming from the volume control. Pins 4 & 5 on both 77's are jumpered together.

Any ideas on the big question? The RC circuit that doesn't connect to pin 5 of the Det. Osc. as shown on the schematic.

Johnny
"It's Nice To Be Nice To The Nice"
Major Frank Burns Mash 4077th
Website Find
« Next Oldest | Next Newest »


Messages In This Thread
Model 57 Doesn't Match Schematic - by Pepperoni - 11-07-2012, 12:50 PM
RE: Model 57 Doesn't Match Schematic - by Pepperoni - 11-10-2012, 08:43 PM



Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
Shadow Meter Bulb
Phorum members, I am trying to find the bulb # for PHILCO Shadow Meter part number 45-2180 that is from a 37-640 chassis...georgetownjohn — 06:53 PM
Philco 41-608 changer coupler
3D-printing...short of machining, of course. Or molding.morzh — 05:20 PM
Philco 41-608 changer coupler
Thanks, Morzh. That solves the issue of the rubber pieces. Now, I need to find a way to replicate the pot metal piec...alangard — 05:07 PM
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
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

[-]
Who's Online
There are currently 5766 online users. [Complete List]
» 1 Member(s) | 5765 Guest(s)
Avatar

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