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

Thread Closed

A question of polarity
#1

While searching for a suitable speaker, I've been recapping the Stewart Warner model 1691 / R-172 chassis and have a question on the two 16 mfd electrolytic caps, #25 & 26 on the schematic:

 http://www.nostalgiaair.org/pagesbymodel...021218.pdf

I'm "assuming" #25 has the negative side to ground?

But number 26 has me stumped because the symbol for the capacitor on the schematic is just two straight lines, giving no indication of polarity. Can anyone tell me if the negative side of the cap should go to the speaker plug and the rectifier tube or the positive side? Terry?

Thanks!

Greg V.
West Bend, WI
Member WARCI.org
#2

Positive goes to the rectifier tube and speaker plug, negative to center tap for cap #26

Positive goes to speaker plug, negative to ground for cap #25
#3

Icon_thumbup Many thanks! That's how I had them wired in.

Greg V.
West Bend, WI
Member WARCI.org




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM

[-]
Who's Online
There are currently 1560 online users. [Complete List]
» 3 Member(s) | 1557 Guest(s)
AvatarAvatarAvatar

>