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Band switch Model 60
winston763
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Posts: 55
Threads: 7
Joined: Mar 2014
City: Maple Grove, MN
#31

08-24-2014, 01:01 AM
You are correct. I have 2 6a7's and 1 produces better reception and volume but still not up to par. So I think that's true but I bet it points to some other weakness and this tube "amplifies" (sorry the pun) the problem. I noticed that my radio is very sensitive to tuning. a little off and nothing.
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sjhs1962
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Posts: 44
Threads: 9
Joined: Apr 2011
City: Pittsburgh, PA
#32

08-26-2014, 07:21 PM
I can't get an IF signal thru to speaker from the grid or from the plate of the 78 tube. So I suspect a bad IF transformer but yet I have continuity. Hmmmm...does the voltage perhaps disrupt the coil and block the signal and continuity when the radio is powered up?
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  1. The PHILCO Phorum
  2. Philco Radio Discussions
  3. Philco Electronic Restoration