1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Home Radios
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
Unusual Audio Output Circuit
hsusmann
Member
***
Posts: 143
Threads: 11
Joined: Dec 2013
City: Ithaca NY
#7

01-13-2014, 04:21 PM
The Philco 37-650 uses this same output push-pull design (using the
screen of tube #1 to get the phase inverted grid drive for tube #2.

Mine sounds fine to the ear, I have not even checked the matching of the 6F6's yet. Have not measured it for distortion or anything but it does
seem to work good enough.

Herb S.
Find
« Next Oldest | Next Newest »


Messages In This Thread
Unusual Audio Output Circuit - by Joeztech - 01-12-2014, 10:13 AM
RE: Unusual Audio Output Circuit - by codefox1 - 01-12-2014, 06:48 PM
RE: Unusual Audio Output Circuit - by Joeztech - 01-12-2014, 07:39 PM
RE: Unusual Audio Output Circuit - by BrendaAnnD - 01-12-2014, 11:31 PM
RE: Unusual Audio Output Circuit - by Arran - 01-13-2014, 12:28 AM
RE: Unusual Audio Output Circuit - by hsusmann - 01-13-2014, 04:21 PM
RE: Unusual Audio Output Circuit - by hsusmann - 01-26-2014, 03:50 PM
RE: Unusual Audio Output Circuit - by Randy H. - 01-26-2014, 07:41 PM
RE: Unusual Audio Output Circuit - by Joeztech - 01-27-2014, 07:44 AM
RE: Unusual Audio Output Circuit - by Radioroslyn - 01-27-2014, 08:12 AM
RE: Unusual Audio Output Circuit - by codefox1 - 02-02-2014, 08:42 PM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
12' Philco
If it is 12', either Kareem or Andre would have to jump pretty high to look at the front panel. Kareem would have an e...morzh — 01:48 PM
12' Philco
And here's a story about the tires on the truck. Same "no-stoop" guy must have installed these! Take care a...GarySP — 01:17 PM
Hickok AC51 tube tester
I think they have only shown the secondaries of the transformer. Two of them feed the rectifiers' filaments.morzh — 12:58 PM
IF can wire size and Rubber mounts?
Arran If the wire inside cans is the gauges you mentioned, the sole reason for that would be mechanical, to stiffen t...morzh — 12:56 PM
12' Philco
Rod, Yes, I know, but the Giant Philco is not around anymore either, so I go by whoever was alive fairly recently. H...morzh — 12:54 PM
Hickok AC51 tube tester
Absolutely no one is going to reverse engineer that circuit. Even the iron core is missing.RodB — 10:37 AM
IF can wire size and Rubber mounts?
Thanks to both members for your help regarding wire and tuner mtg supports. regards--Johngeorgetownjohn — 09:33 AM
Hickok AC51 tube tester
Note that no power cord, power switch, or power transformer switch are shown. That (along with my experience with full s...DaleHCook — 07:09 AM
IF can wire size and Rubber mounts?
A pair of wire strippers can give you an idea of what the existing gauge of the wire leads are in the IF can, I think it...Arran — 06:07 AM
My last cabinet for this year
Hello Dan, That is really beautiful what great looking radio you have ! I have friends who live in Calgary and the wea...radiorich — 01:51 AM

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

>
  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Home Radios