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Sorry, I've been away from Radio/TV restoration for about 3 years.
Instead of B&K 1077, its my Sencore VA62 that I modified. A fellow came
up with a replacement EPROM for it that expanded the IF frequencies so
that this instrument could be used with older televisions.
I got a lot of vintage test equipment that I have acquired but do not have
enough skill to really use properly. Wish Tech Schools still taught TV servicing.
Be a nice class to take to learn more about this hobby.
I'll soon pull the chassis in my Raytheon TV and take it to my test bench
and see if I can make some IF adjustments like you suggested.
I will say that my Zenith Porthole TV plays audio and video much better
than my Raytheon Porthole. Maybe its the circuit design as the circuitry
under the chassis does look much simpler than the Zenith.
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CW
1950 Zenith Porthole - "Lincoln"
Last edited by cwmoser; 09-09-2016 at 06:28 PM.
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