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A Philco Super 71 Slideshow (and a Super 89 slideshow too!)
07-22-2008, 09:06 PM
Ed, the Philco models 71 and 89 along with several other models used a type 36 tube as the oscillator. It was a marginal circuit design that was very problematic. Ron has redesigned the circuit to use a type 6A7 tube as the oscillator, hence "super".
Oops, too late! Steve M R Radios C M Tubes
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Messages In This Thread
A Philco Super 71 Slideshow (and a Super 89 slideshow too!) - by Ron Ramirez - 07-20-2008, 10:24 PM
[No subject] - by Michael Dennis - 07-21-2008, 10:53 AM
[No subject] - by Steve Davis - 07-21-2008, 06:26 PM
[No subject] - by Ron Ramirez - 07-22-2008, 05:55 PM
[No subject] - by Ron Ramirez - 07-22-2008, 06:31 PM
[No subject] - by Steve Davis - 07-22-2008, 07:13 PM
[No subject] - by etech - 07-22-2008, 08:27 PM
[No subject] - by Steve Davis - 07-22-2008, 09:06 PM
[No subject] - by etech - 07-22-2008, 09:23 PM
[No subject] - by Ron Ramirez - 07-22-2008, 09:31 PM
[No subject] - by etech - 07-22-2008, 09:42 PM
[No subject] - by BDM - 07-22-2008, 10:08 PM
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