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A Philco Super 71 Slideshow (and a Super 89 slideshow too!)
#8

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


Messages In This Thread
[No subject] - by Michael Dennis - 07-21-2008, 11:53 AM
[No subject] - by Steve Davis - 07-21-2008, 07:26 PM
[No subject] - by Ron Ramirez - 07-22-2008, 06:55 PM
[No subject] - by Ron Ramirez - 07-22-2008, 07:31 PM
[No subject] - by Steve Davis - 07-22-2008, 08:13 PM
[No subject] - by etech - 07-22-2008, 09:27 PM
[No subject] - by Steve Davis - 07-22-2008, 10:06 PM
[No subject] - by etech - 07-22-2008, 10:23 PM
[No subject] - by Ron Ramirez - 07-22-2008, 10:31 PM
[No subject] - by etech - 07-22-2008, 10:42 PM
[No subject] - by BDM - 07-22-2008, 11:08 PM



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