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

Electrolytic capacitor polarity - 16X code 126
#1

Hello, all:

I'm working on a Philco 16X, chassis code 126, and have a question about the polarity of the electrolytic capacitors C98 ( 8uf) and C91, a dual can containing both a 10uf and 8uf cap.

This power supply section looks very much like the 14B I recently worked on and, in that scenario proves to be a parallel, then the 10uf section of C91 should see its positive lead going to ground.  If I'm right so far, would the negative leads of the two 8uf caps go to the negative lead of the 10uf cap?  

The schematic is here:  http://www.nostalgiaair.org/PagesByModel...013141.pdf

Wonder why Philco didn't make this clear on their schematics?  Maybe they feared that some unenlightened hobbyist would. try to decipher their intent 80 years into the future?

Thank you, in advance, for replies.

Mike, K9UW
Amherst, WI
#2

Yes that is correct. 

All three negative leads connect together and go to the center tap of the power transformer, the most negative point in the power supply.
#3

Thanks, Mondial!

I'll solder with confidence in the morning.

Mike, K9UW
Amherst, WI




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 46-480 Electronic Restoration
Hello Joseph , It sounds like you found a good seller and yes shipping is really expensive ! Sincerely Richardradiorich — 02:16 PM
Philco 46-480 Electronic Restoration
There’s a lot of different search results for trust auto. I did confirm he takes Venmo, but I’ve got one last test. I as...jrblasde — 02:01 PM
Philco 91 Restore Code ??
I did the math to calculate the wattage of the resistor and found to be 47.16 watts using 3275 as fc resistance and your...dconant — 01:30 PM
New member
Hello all.  New member here. I bought a Predicta TV for my teenage son (who is into all things vintage, see attached pic...Jsmith5690 — 12:47 PM
Philco 46-480 Electronic Restoration
I’ve asked if they accept PayPal as payment so that I can contest it if the part doesn’t arrive.jrblasde — 12:46 PM
Philco 46-480 Electronic Restoration
Make sure the person who answered is not a scammer (lots of these there now) and the Trus A S, whoever they are and wher...morzh — 12:38 PM
Philco 40-120C Filament Wiring
I would disregard everything that is there now. I do not know who and when changed it. 1. Make sure that what you thi...morzh — 12:36 PM
Model 27-84 BUZZ?Humm?
Depends on the type of hum. SOme is made by outside devices. Try installing an X-cap (0.2-0.5uF) across the AC line, ...morzh — 12:23 PM
Philco 40-120C Filament Wiring
Thank you for your replies. That is the correct schematic and pin out diagram for the rectifier. The resistance acro...bluecap — 11:01 AM
Philco 46-480 Electronic Restoration
Late last night a guy reached out in response to my posting on the Antique Radio Forum and suggested I contact Trust Aut...jrblasde — 11:01 AM

[-]
Who's Online
There are currently 1636 online users. [Complete List]
» 1 Member(s) | 1635 Guest(s)
Avatar

>