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Were There Different Runs Of The 40-190?
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Starting with run number 4 the tube was changed from the 7J7 to the 6J8 and then in run 8 they changed it back. Hmm, must have run into supply problems. What I didn't see was any change to the schematics. The Rectifier in the drawings is also an 84 not a 5Y3. Here is the Nostalgia air link,

http://www.nostalgiaair.org/PagesByModel...013339.pdf

Chuck would have all the service info regarding this by ordering his packet,
http://www.philcorepairbench.com/schematics.htm

Glenn


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Re: Were There Different Runs Of The 40-190? - by Glenn Roberts - 09-23-2011, 05:55 PM



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