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

Thread Closed

Philco 40-165
#2

<  I mean it has nothing to do with X sub L?  Also, should there be a couple of fuses?  One in the line and one at the power supply output?

Correct. Inductance is measured in Henrys.  Resistors have very little inductance (wire wound) which can be a issue at RF but in power supply filtering it's a non issue. With that being said you'll need to increase the value of the three capacitors to 33mfd or so to eliminate 60cy hum. Remove #54 from the circuit.
You can add fuses 1A to the ac line and 150ma to the center tap of the HV winding.

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 it!

Terry


Messages In This Thread
Philco 40-165 - by jmcgill - 06-02-2017, 08:10 PM
RE: Philco 40-165 - by Radioroslyn - 06-03-2017, 04:42 AM
RE: Philco 40-165 - by jmcgill - 06-04-2017, 05:13 PM
RE: Philco 40-165 - by Radioroslyn - 06-05-2017, 10:45 AM
RE: Philco 40-165 - by jmcgill - 06-05-2017, 01:42 PM
RE: Philco 40-165 - by morzh - 06-05-2017, 02:04 PM
RE: Philco 40-165 - by Radioroslyn - 06-05-2017, 04:05 PM
RE: Philco 40-165 - by jmcgill - 06-06-2017, 01:40 PM
RE: Philco 40-165 - by Radioroslyn - 06-06-2017, 04:12 PM
RE: Philco 40-165 - by jmcgill - 06-07-2017, 09:46 AM
RE: Philco 40-165 - by morzh - 06-07-2017, 10:42 AM
RE: Philco 40-165 - by Radioroslyn - 06-07-2017, 01:22 PM
RE: Philco 40-165 - by Ron Ramirez - 06-11-2017, 11:00 AM
RE: Philco 40-165 - by Radioroslyn - 06-11-2017, 11:14 AM
RE: Philco 40-165 - by jmcgill - 06-11-2017, 03:20 PM
RE: Philco 40-165 - by Radioroslyn - 06-11-2017, 04:03 PM
RE: Philco 40-165 - by jmcgill - 07-26-2017, 06:46 PM
RE: Philco 40-165 - by Radioroslyn - 07-26-2017, 07:26 PM
40-165 - by jmcgill - 06-11-2017, 09:45 AM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
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
Preliminary work on wife's Silvertone 2014
Hello roy, that great news glad it worked out for you !! Sincerely Richardradiorich — 10:50 PM
Preliminary work on wife's Silvertone 2014
Safety caps arrived today.  Soldered one in and had a successful first power-up.  No magic smoke escaped and it tunes in...glyphmon — 09:53 PM

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

>