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

Thread Closed

Philco 41-255
#1

        Afternoon
I posted earlier about replacing the speaker in this radio and I got it sorted out, I put in a choke and a ceramic resistor to make up the rest of the resistance and finished the recap. Powered up and it really plays so good I've put off doing an alignment. My problem is with the push buttons. We have two really strong AM stations here 750kc and 680kc where I live.
I can preset the 750kc on #1-4 buttons but get nothing trying to pick up 680. I have read while doing a search that Dual Capacitor 21 & 21A each is 370pf should be replaced as it can drift. Is this the problem?  On the regular dial I have no issue picking up 680kc and lower. Sorry the print leaves a lot to be desired.


Buttons are 1-3 540-1060kc
                 4-5  650-1110kc

Schematic here
http://www.nostalgiaair.org/pagesbymodel...013408.pdf

Thanks
Eric
#2

I've had a couple '41 sets that that capacitive  divider has drifted and the p/b oscillator coils won't tune down to the end of the bcb.
I'd replace both 370mmfd caps 21 and 21A.

https://philcoradio.com/library/download...20Book.pdf

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got it!

Terry
#3

Thanks Terry

I have some 360pf silver mica caps I will put in tomorrow.

Eric
#4

Terry
Changed it out this morning and 680 and a more faint station were tuned in. It was easier to change out than it looked. Thanks for the input.

Eric




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
That looks a lot like an aircraft connector of some kind, even if it's a U.S.N power supply. I have a book somewhere abo...Arran — 02:56 AM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
hello david, I have a similar generator in my collection that features a cast iron, single-cylinder Briggs & Stratt...radiorich — 01:00 AM
under chassis parts locator diagram for 1938 Zenith 9s262
Has anyone gone to the trouble of creating an under chassis parts locator image?  Yes, I can identify components by foll...bobloney — 08:57 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Try looking at this site the book mark is for a old generator that I was given. David    https://radionerds.com/index.ph...David — 08:36 PM
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
Hello Everyone, I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM
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

[-]
Who's Online
There are currently no members online.

>