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

RESISTOR ID 38-15 philco help
#15

http://s1289.photobucket.com/user/TROG99...c.jpg.html

I have had some time to look at the 38_15. What I have found is #22 the 4 Meg is gone. A 7Meg to ground is on the cap side to Tube 75 that #22 the 4 Meg went to.

Further # 17 2Meg is gone. It looks like they split into two 1 Meg and attached a Cap in between.

Above picture is of the bottom side again. I went thru and I identified each component. I have a small idea of what they did. Just a lil foggy the 2 1 Meg connect. It was late so I have only tried to get a picture have changed nothing.

The 1 Meg attached to the TB reads 975K. It then attaches to the Switch #3 position A5-A7. This is where the switch is setting did not move it.

The other reads 1.1 Meg goes from Tube 75 pin 3 the junction point of the three components to pin 5.

The 7 Meg attaches to #21 Cap the side not attache to the 500k variable resistor #20 then goes to ground.

I am making a schematic to show were they attach. After looking at the 38-10 it does appear close to that configuration.

I have assumed that #3 is the A5-A7 because I did not see that on the electronic schematic just on the Bottom view.

I would like to make sure I'm not sitting near the bleachers in left field. I will at this point replace them one for one.


Messages In This Thread
RESISTOR ID 38-15 philco help - by Bradley Rush - 12-13-2013, 04:50 AM
RE: RESISTOR ID 38-15 philco help - by vinzer - 12-13-2013, 12:49 PM
RE: RESISTOR ID 38-15 philco help - by Mondial - 12-13-2013, 04:16 PM
RE: RESISTOR ID 38-15 philco help - by morzh - 12-13-2013, 05:11 PM
RE: RESISTOR ID 38-15 philco help - by vinzer - 12-13-2013, 06:34 PM
RE: RESISTOR ID 38-15 philco help - by BrendaAnnD - 12-13-2013, 08:12 PM
RE: RESISTOR ID 38-15 philco help - by Mondial - 12-13-2013, 09:05 PM
RE: RESISTOR ID 38-15 philco help - by Mondial - 12-13-2013, 10:38 PM
RE: RESISTOR ID 38-15 philco help - by Bradley Rush - 12-30-2013, 03:07 AM
RE: RESISTOR ID 38-15 philco help - by David - 01-08-2014, 07:21 PM



Users browsing this thread:
[-]
Recent Posts
Philco Model 38-7: what caps & resistors do fail typically?
Since you stated earlier, you have a console 38-7XX.  They also had a 38-7T (table), and 38-7CS (chairside).  A very nic...GarySP — 01:18 PM
Part numbers to model cross
That I wouldn't know, but sometimes the radio document itself shows one, same as the capacitor cans' etc pinouts.morzh — 12:46 PM
Part numbers to model cross
Thank you morzh, that is exactly what I was looking for. Now , is there some where that shows pinouts for Philco power ...Jim Dutridge — 11:37 AM
Restoration of the Canadian General Electric A-87
Thanks for your help Michael. In fact, this video is only an intermediate result. Later I had to apply another tinting l...RadioSvit — 09:01 AM
Restoration of the Canadian General Electric A-87
Great job on the cabinet. PS. In the US notation, "kenotron" refers to specific type of tubes; we call re...morzh — 08:24 AM
Part numbers to model cross
This document has at least some tables of models and parts used. Example: Choke 32-7572, used in 604 radio. Search f...morzh — 08:19 AM
Restoration of the Canadian General Electric A-87
I also checked all the radio tubes on my Hickok 530 tube tester. The 5Z3 kenotron turned out to be faulty, all the other...RadioSvit — 08:02 AM
Restoration of the Canadian General Electric A-87
Well... While the varnish is drying up, I started repairing the chassis... Of course I started by replacing the pa...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM

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

>