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

Thread Closed

My very first FrankenPhilco
#2

Congratulations, Danny, you now have a Philco 21. Well, sort of. Icon_smile Very nice too; with the usual excellent job on the front panel by Dick Oliver.

Did you know that early production 21 sets used the old 20 chassis?

The 20 chassis was then modified to use 45 output tubes in place of the 71A tubes previously used; and a large, single Mershon electrolytic (12 to 14 uF, depending on the source you choose to believe) was installed in place of the old multi-section condenser can on top of the chassis. A smaller multi-section condenser can was then placed under the chassis. And that's the difference between a 20 and a 21.

So, anyway, your Philco is not quite as "Franken" as you might have believed. Put some rosette knobs on it in place of those hex knobs, and your radio will look identical to a 21.

Hmmm...maybe I should keep that 70 cabinet I was wanting to sell...I have a 20 chassis or two kicking around here... Icon_wink

Questions:

1. How did you get that chassis so clean?

2. Is that the escutcheon that was on the radio when it was a 70? That is a 20/21 escutcheon! Philco factory literature showed the 70 and 90 with a 20/21 escutcheon when they were introduced, but I've never seen an actual 70 or 90 with that escutcheon.

--
Ron Ramirez
Ferdinand IN


Messages In This Thread
My very first FrankenPhilco - by Danny - 10-07-2009, 09:48 AM
Re: My very first FrankenPhilco - by Ron Ramirez - 10-07-2009, 03:20 PM
Re: My very first FrankenPhilco - by jayoungs - 10-07-2009, 05:24 PM
Re: My very first FrankenPhilco - by Danny - 10-08-2009, 11:46 AM
Re: My very first FrankenPhilco - by Ron Ramirez - 10-08-2009, 12:21 PM
Re: My very first FrankenPhilco - by Danny - 10-08-2009, 02:57 PM
Re: My very first FrankenPhilco - by radiorich - 10-09-2009, 02:17 AM
Re: My very first FrankenPhilco - by Ron Ramirez - 10-09-2009, 09:05 AM
Re: My very first FrankenPhilco - by radiorich - 10-11-2009, 03:05 AM
Re: My very first FrankenPhilco - by Arran - 10-30-2009, 06:27 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
Philco P45-6365 Universal Transformer Instruction Manual
Can anyone guide me to where this may be found?GRG — 03:00 PM
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
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

[-]
Who's Online
There are currently 1834 online users. [Complete List]
» 2 Member(s) | 1832 Guest(s)
AvatarAvatar

>