Posts: 12
Threads: 2
Joined: Dec 2020
City: Muhlenberg County
State, Province, Country: KY
I would like to verify that my thoughts are correct regarding my Model 70 and its appropriate schematic.
My chassis info:
SN# 870044 - no prefix
Tubes: 24 (4), 27, 47, 80
Since I was unable to find a comprehensive serial number compendium I pieced together info from various sources. My understanding is that this is an early model and therefore the correct schematic should be the "Below B-22000" version. Is that correct?
Posts: 1,970
Threads: 147
Joined: Jan 2013
City: Westland, MI
Hello Ross. The Philco Radio Library located at the bottom of the page has the schematic with the tube count you have. Hope this helps. The later schematic included AVC, and also has a couple 35 tubes as well. Take care and BE HEALTHY! Gary
https://philcoradio.com/library/index.ph...ams-vol-1/
"Don't pity the dead, pity the living, above all, those living without love."
Professor Albus Dumbledore
Gary - Westland Michigan
Posts: 5,082
Threads: 270
Joined: Nov 2012
City: Wilsonville
State, Province, Country: OR
I think you have the correct take on your set. Ron's annotated early schematics that note the below B22000 serial numbers would confirm that (I believe that is what you are looking at as well). I'm betting the S/N 870044 is actually B10044 ??
https://philcoradio.com/library/index.ph...chematics/
Posts: 12
Threads: 2
Joined: Dec 2020
City: Muhlenberg County
State, Province, Country: KY
Klondike98,
Thank you. I'll double check that SN and get back to you.
GarySP,
Thank you for the schematic.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
