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

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

philco 38-116 125 schematic
#1

is there a good factory service information on the 38-116/125 i am having some troubles identifying some resistors. ether i have gone nuts are these 4 band resistors ? i know that other philco radios have good parts drawings


Attached Files Image(s)
           
#2

You can probably use the body-end-dot scheme on these. There was a doggone transition period where the BED was used before the bands became standard. So, if the body is orange, the end band black and middle band red you have a 3000 ohm resistor.
#3

They aren't 4 banded but bed resistors. The the at the top of the first page the predominant color (body) is purple =7. End is black= 0. And middle band (dot) orange =3. Totaling 7 and 4 zeros 70,000 or 70K. The tricky ones are ones that the first two numbers are the same. If you look down 3 resistors below the 70K there's one that just has two colors. First time I saw one of those I didn't take it at face value but scratched my head thought what the heck?? But it's white white yellow= 99K. Nowdays it's replaced with a 100K.

GL

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!

Terry
#4

so the one in the second photo should be 3k ohms
#5

Looks like it. Body is orange, end looks black and center band looks red. That's 3K.
#6

For the factory service info have a look in the Philco Library - Service Info section:

https://philcoradio.com/library/index.php/service-info/

Here is a direct link to the service bulletin for 38-116 (Code 125):
https://philcoradio.com/library/download...20286A.pdf
#7

Those are the IRC "BT" type insulated resistors. Philco used them heavily, but they turn up in other makes as well, along with early audio equipment. They are read the same as the dogbone type, except that a band is used instead of a dot (some early ones did use a dot). Many times, they are still OK.

Tim KA3JRT




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Studebaker/Philco AC-2687 car radio
I have some car radio service manuals, Riders I think (not to be confused with the big blue binders), so I may see if on...Arran — 01:20 AM
Philco model 40-100
Greetings; Here is an update, I found a listing on fleabay for a similar chassis to yours, and it has a photo of what...Arran — 12:58 AM
Philco model 40-100
Greetings; I think I may have found a clue as to what is missing, from a search I made, there is a rear view of the c...Arran — 12:12 AM
Philco model 40-100
I recently acquired a Philco model 40-100 farm (battery) radio. The radio was in very good condition except the red on f...mhamby — 05:59 PM
Studebaker/Philco AC-2687 car radio
Hello, Richard the radio is an AC-2687 Studebaker model. The Philco model is S -5323 and the chassis p/n is S-5523Pdouglaski — 11:52 AM
48-482 rear panel help
The 48-482 is an AC only set as well, featuring a power transformer. While the transformer shouldn’t get “hot”, it is ye...jrblasde — 11:12 AM
Studebaker/Philco AC-2687 car radio
I gave a Chrysler/MoPar car radio from 1954, it was made by Philco, and it uses two chassis, one has the power supply an...Arran — 11:06 AM
48-482 rear panel help
Hello keithchip. You could make a hardboard back for the set, but make sure you provide plenty of ventilation holes in ...GarySP — 11:04 AM
Studebaker/Philco AC-2687 car radio
Welcome to the Phorum, Phil! Lots of friendly help here to assist you along the way! Take care, - GaryGarySP — 10:55 AM
Studebaker/Philco AC-2687 car radio
Hi Pdouglasti, Phirst off, welcome to the Philco Phorum, a Phamily Phriendly place phull of phun pholks and all things ...MrFixr55 — 07:37 AM

[-]
Who's Online
There are currently 834 online users. [Complete List]
» 2 Member(s) | 832 Guest(s)
AvatarAvatar

>