Couple of years back I found one of those for 2$ at a thrift that had been WELL used. It has been my go to crosshatch generator since. Tip:If it is not working or goes funky pull and reseat each socketed IC....This goes for most heath gear of this era.
Also before doing convergence play with the channel tuning of the generator and brightness/contrast controls of the set for thinnest least blury cross hatch lines. Also the three clip leads for CRT grids/cathodes to allow those switches to turn off guns are a waste of time in most sets IMO.
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