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

Thread Closed

Philco Model 81-need help please
#18

(03-02-2015, 03:08 PM)Jay Thomas Wrote:  
(03-02-2015, 01:34 PM)Bill Bacco Wrote:  If you are interested in some changes I made to my 81 Jr to address the volume issue, check out the following thread.

http://philcoradio.com/phorum/showthread...2#pid38812

Bill

Thanks Bill.  May be the next thing I will try.  This seems to put the volume control in the output circuit where later models have them. 

Jay
Hi Bill:

I made the changes in your diagram to my delight!  Grounding the receiver was not an option for me.  With the circuitry change I can now control the volume from zero to loud on the strongest stations.  I do not notice any distortion at any volume level and I now receive more stations than I did before the changes.  Amazing!  Thanks much!

Jay


Messages In This Thread
Philco Model 81-need help please - by Jay Thomas - 03-02-2015, 12:25 AM
RE: Philco Model 81-need help please - by morzh - 03-02-2015, 09:32 AM
RE: Philco Model 81-need help please - by morzh - 03-02-2015, 10:59 AM
RE: Philco Model 81-need help please - by Jay Thomas - 03-10-2015, 07:35 PM
RE: Philco Model 81-need help please - by morzh - 03-03-2015, 05:51 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
54C Complete Teardown/Rebuild
I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
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

[-]
Who's Online
There are currently 1688 online users. [Complete List]
» 1 Member(s) | 1687 Guest(s)
Avatar

>