Adding AVC Mod to Philco 70
Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand
State, Province, Country: Indiana
Since we're working from a modified version of the schematic from Service Bulletin 57-A, here is a corrected under-chassis drawing for 57-A, showing the correct connections for resistor (16).
[Image: https://philcoradio.com/images/phorum/70mod/70_019.jpg]
--
Ron Ramirez
Ferdinand IN
Messages In This Thread
RE: Adding AVC Mod to Philco 70 - by Ron Ramirez - 06-02-2019, 07:59 AM
Users browsing this thread: 2 Guest(s)
|
Recent Posts
|
HiFi (Chifi) tube amp build - but my own design.
|
Tim - Photos of 8 octal tube sockets. (Top and bottom)
Send me a PM if you're interested.RodB — 04:11 PM |
VTVM meter moves when my hand is next to it & not on
|
Haha! I hope so. It seemed rather lost and forgotten languishing in the frozen Northeast of England.EdHolland — 02:36 PM |
VTVM meter moves when my hand is next to it & not on
|
Ed - it's in the Cayman's enjoying the good life.RodB — 02:14 PM |
VTVM meter moves when my hand is next to it & not on
|
Static electricity - but the other chaps beat me to it again. I've seen this before with analogue meters.
I've also ...EdHolland — 01:56 PM |
Need to purchase some accessories for restoration of my Old Philco Radio
|
Hi Paulo,
Welcome to the Philco Phorum.
I can see why you want to find good reproduction parts. That is a bea...MrFixr55 — 11:10 PM |
HiFi (Chifi) tube amp build - but my own design.
|
Tim,
I have some bakelite sockets in my work shop that I can dig up. I believe quite a few are NOS. I will take photo...RodB — 10:03 PM |
Philco 610B oscillator wiring
|
> The cathode as noted is wired directly to the ground side of the heater filament for that tube, not to the #17 and ...Radioroslyn — 08:12 PM |
HiFi (Chifi) tube amp build - but my own design.
|
Tim;
I noticed your post a little late, but I would take one of the junk sockets and try to break a chunk out of it wi...Arran — 08:07 PM |
Need to purchase some accessories for restoration of my Old Philco Radio
|
Here is a list of resources found in our online library that you might find useful. Mike's Gobs of Knobs email addres...klondike98 — 01:46 PM |
First Radio restoration
|
Hi Tubeman,
Welcome to the Philco Phorum. Phamily Phriendly Pfun with Phine Pholks Phull of Philco Phacts. (See a p...MrFixr55 — 12:33 PM |
Who's Online
|
There are currently no members online. |
|

|