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

Philco 38-10 schematic question
#1
Photo 

Hi all. First, let me first admit I am a beginner. This is my first restoration — a model 38-10. While replacing caps and resistors, I've discovered one resistor in the chassis not listed on the schematic, and one listed but not found in my chassis or in any photos of this model I can find. The resistor missing from the schematic is shown in the photo with the red arrow pointing to it, between cap #33 and cap#38. The resistor that shows up on the schematic but not in the chassis is #32—330k. The two 1.0 meg resistors are there, but not the 330k. 

Can anyone shed light on this for me? I'm attaching parts list and schematic. Thanks for any help you can offer.                     
#2

Ok so if we follow the wire on the schematic on pin 4 of the 6F6 (screen grid) down and over it goes to #32 330k resistor the other end of the resistor goes to eventually to the plate of the triode section of the 6Q7. Long story short it's #32. The two 1megs are 18 & 27.

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
#3

Thanks, Terry. I guess it's just a mis-labeled location on the parts location diagram.




Users browsing this thread:
[-]
Recent Posts
Correct model 84 Ac plug an cord type
From what I read Philco went to using brown rubber power cords in 1936, so cloth was used in the 1935 and earlier models...Arran — 11:25 PM
Correct model 84 Ac plug an cord type
Hi Bruce, I have not worked on an 84, but in general, power cords for almost any radio prior to 1938 was cloth covered...MrFixr55 — 08:34 PM
Restoring Philco 38-14
OK, well, so after staring at the sch again, I realized the problem had to be the #12/12A padder. I put a scope on the o...morzh — 08:15 PM
Correct model 84 Ac plug an cord type
Hello Bruce, I mostly use brown far as my cloth powercords go ! Here is the plug that I have used bakelite Acorn style...radiorich — 08:05 PM
Correct model 84 Ac plug an cord type
Looking for as correct as can find the right Ac plug an the correct colored cloth line. Ive seen many old photos but mos...Bruce — 04:13 PM
Restoring Philco 38-14
Rod Two Y-caps make sense if you use them from L/N to the chassis; this is only makes sense in the transformer radios...morzh — 10:11 AM
Restoring Philco 38-14
Mike, I'm curious about a specific use of he Y cap. Lately I've seen a single cap across the power transformer primary. ...RodB — 09:01 AM
Restoring Philco 38-14
hello morzh , That sounds like a plan ! Sincerely Richardradiorich — 07:45 AM
Restoring Philco 38-14
Richard, It helped some, but I still had the whining when engaging the rear power strip (I did not realize it was fro...morzh — 07:07 AM
Restoring Philco 38-14
Hello morzh, Yes , that dreaded hum in my room where i do alighment I have my cable modem and router plus desktop plus ...radiorich — 11:25 PM

[-]
Who's Online
There are currently 4483 online users. [Complete List]
» 2 Member(s) | 4481 Guest(s)
AvatarAvatar

>