Sencore VA62 adventure

[Notimetolooz]

This will have to be a multi-post story.
The VA62 came out in about 1985 and I think it was made for less than a decade. It combines several TV test instruments in one box, making it very complex.
A 1 Amp 0-30volt power supply. A voltmeter that can monitor the variable supply voltage and current, measure external voltages, monitor various signal level the unit puts out. It has sweep drive output signals similar to a B&K 1077B but without the flying spot scanner. Instead of a flying spot scanner the VA62 has a digital video pattern generator. It will generate video modulated RF channel frequencies and 45.75MHz IF frequency, also audio modulated 4.5MHz sound IF signal. In addition it has a programmable 30-50MHz modulated IF range. (This by the way should be able to be used to generate the early obsoleted TV channel 1.) One thing it can't do is output the older 21-25MHz IF signal. Although the VA62 can insert some marker frequencies into the generated video, it really isn't the best thing to be used for alignment. It can be used to confirm and compare the performance of TV sets.

I obtained my VA62 several years ago. A short time later I found out about a modification kit by Zenith6S321 in this forum that would allow the operation in the 21-25MHz IF range, so I got a kit in 2018. I didn't do much with the Sencore or that kit until recently.