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

Thread Closed

model 20 dog bone resistor values
#1

I want to replace the 5 dogbone resistors. I can not find the equivelent part number/codes for these parts. I would appreciate any help you can give.
#2

Why do you need the part numbers? You can't just go down to the Philco distributor and get these anymore...

Anyway, your wish is my command:

(12) 50,000 ohms, part no. 4237
(15) 250,000 ohms, part no. 3768
(17) 500,000 ohms, part no. 3769
(18 ) 100,000 ohms, part no. 3767
(20) 500,000 ohms, part no. 3769

--
Ron Ramirez
Ferdinand IN
#3

Here's some additional info where they are listed by wattage.

http://www.philcorepairbench.com/carbonres.htm

And if yours aren't shown in the list click on the comparison pictures link. That is handy for all old dogbones, not just Philco.

You will probably have to resort to modern values like 470k instead of 500k, etc.

GL,
Bill
#4

thanks for your help. Ron, which site has these part numbers? I understand you don't sell them.
#5

You aren't going to be able to find those parts any longer more than likely. I'd recommend you get modern equivilents...

Try http://www.justradios.com : http://www.justradios.com/rescart.html

Look for ones that are as close as possible in the 1W Flame Proof column. They come in packs of 5.

50k ohm would = 47k ohm
250k = 250k
500k = 500k
100k = 100k

Brian Mattson
Coon Rapids, MN




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
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

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

>