Messed up Philco 90

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Messed up Philco 90

Bill Kinghorn
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Posts: 52
Threads: 1
Joined: Mar 2013
City: Minneapolis, MN

#11

06-06-2013, 11:30 PM

If the original circuit used a 27 as a plate detector, the selectivity and sensitivity of the receiver are probably degraded by the 6H6 which loads the IF transformer much more than the original circuit. A diode detector makes sense only when you want AGC and/or the eye tube.

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Messages In This Thread

Messed up Philco 90 - by Bob Andersen - 06-06-2013, 04:17 PM

RE: Messed up Philco 90 - by Bob Andersen - 06-06-2013, 04:26 PM

RE: Messed up Philco 90 - by Art Hoch - 06-06-2013, 05:29 PM

RE: Messed up Philco 90 - by Mondial - 06-06-2013, 06:25 PM

RE: Messed up Philco 90 - by morzh - 06-06-2013, 06:57 PM

RE: Messed up Philco 90 - by Bill Kinghorn - 06-06-2013, 07:02 PM

RE: Messed up Philco 90 - by Bill Kinghorn - 06-06-2013, 07:05 PM

RE: Messed up Philco 90 - by Bob Andersen - 06-06-2013, 08:20 PM

RE: Messed up Philco 90 - by Mondial - 06-06-2013, 08:48 PM

RE: Messed up Philco 90 - by GarySP - 06-06-2013, 09:14 PM

RE: Messed up Philco 90 - by Bill Kinghorn - 06-06-2013, 11:30 PM

RE: Messed up Philco 90 - by morzh - 06-06-2013, 11:34 PM

RE: Messed up Philco 90 - by Bob Andersen - 06-07-2013, 12:01 AM

RE: Messed up Philco 90 - by morzh - 06-07-2013, 12:27 AM

RE: Messed up Philco 90 - by Bob Andersen - 06-07-2013, 12:39 AM

RE: Messed up Philco 90 - by Arran - 06-07-2013, 03:22 AM

RE: Messed up Philco 90 - by Philco281989 - 06-09-2013, 12:07 PM

RE: Messed up Philco 90 - by Bob Andersen - 06-09-2013, 02:02 PM

RE: Messed up Philco 90 - by wa2ise - 06-11-2013, 09:45 PM

RE: Messed up Philco 90 - by Bob Andersen - 06-23-2013, 04:05 PM

RE: Messed up Philco 90 - by morzh - 06-23-2013, 07:29 PM

RE: Messed up Philco 90 - by Bob Andersen - 06-23-2013, 09:35 PM

RE: Messed up Philco 90 - by Arran - 06-23-2013, 09:44 PM

RE: Messed up Philco 90 - by Bob Andersen - 06-23-2013, 10:22 PM

RE: Messed up Philco 90 - by Arran - 06-24-2013, 12:08 AM

RE: Messed up Philco 90 - by wa2ise - 06-25-2013, 09:20 PM

RE: Messed up Philco 90 - by Arran - 06-25-2013, 09:35 PM

RE: Messed up Philco 90 - by morzh - 06-25-2013, 10:39 PM

RE: Messed up Philco 90 - by AI2V - 06-27-2013, 10:05 AM

RE: Messed up Philco 90 - by Bob Andersen - 06-27-2013, 11:27 AM

RE: Messed up Philco 90 - by Electrothaumaturgist - 06-27-2013, 11:29 AM

RE: Messed up Philco 90 - by Ron Ramirez - 06-27-2013, 04:42 PM

RE: Messed up Philco 90 - by Arran - 06-28-2013, 01:55 AM

RE: Messed up Philco 90 - by Eliot Ness - 06-28-2013, 08:25 AM

RE: Messed up Philco 90 - by marty - 06-28-2013, 09:29 AM

RE: Messed up Philco 90 - by Bob Andersen - 06-28-2013, 12:33 PM

RE: Messed up Philco 90 - by morzh - 07-05-2013, 10:10 PM

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