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Philco 90 with Twin 47 Tubes in PP
morzh
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#2

05-05-2014, 03:39 PM
http://www.philcoradio.com/tech/images/90c.jpg

Again it has been found repeatedly Philco sch contain discrepancies and downright errors.
If you have 56K that seems factory (and it is 56K resistor, not the value that could creep up) then it could very well be one of the variations.
As for the 0.05uF vs 0.09uF it in this particular case won't make much difference.

I had questions like this in my 90 (2 x 45) plus there was an error in the sch. And one extra cap.
(This post was last modified: 05-05-2014, 03:43 PM by morzh.)
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Messages In This Thread
Philco 90 with Twin 47 Tubes in PP - by joybird - 05-05-2014, 12:00 PM
RE: Philco 90 with Twin 47 Tubes in PP - by morzh - 05-05-2014, 03:39 PM
RE: Philco 90 with Twin 47 Tubes in PP - by morzh - 05-05-2014, 04:55 PM
RE: Philco 90 with Twin 47 Tubes in PP - by Arran - 05-05-2014, 06:23 PM
RE: Philco 90 with Twin 47 Tubes in PP - by Arran - 05-05-2014, 07:05 PM
RE: Philco 90 with Twin 47 Tubes in PP - by morzh - 05-05-2014, 07:45 PM
RE: Philco 90 with Twin 47 Tubes in PP - by gregb - 05-05-2014, 09:45 PM
RE: Philco 90 with Twin 47 Tubes in PP - by gregb - 05-05-2014, 09:49 PM
RE: Philco 90 with Twin 47 Tubes in PP - by morzh - 05-05-2014, 10:37 PM
RE: Philco 90 with Twin 47 Tubes in PP - by morzh - 05-07-2014, 02:21 PM
RE: Philco 90 with Twin 47 Tubes in PP - by Arran - 05-07-2014, 11:48 PM
RE: Philco 90 with Twin 47 Tubes in PP - by morzh - 05-14-2014, 11:15 AM
RE: Philco 90 with Twin 47 Tubes in PP - by morzh - 05-14-2014, 02:11 PM
RE: Philco 90 with Twin 47 Tubes in PP - by gregb - 05-14-2014, 04:22 PM
RE: Philco 90 with Twin 47 Tubes in PP - by morzh - 05-15-2014, 01:26 PM
RE: Philco 90 with Twin 47 Tubes in PP - by Arran - 05-16-2014, 01:09 AM
RE: Philco 90 with Twin 47 Tubes in PP - by Arran - 05-17-2014, 02:40 AM



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  1. The PHILCO Phorum
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