Quote:
Originally Posted by Tube TV
Lol yeah. I forgot how they used the 12A6 as a rectifier. Just wire the grids to the plate and you're good to go. Come to think of it I think my tubes have JAN numbers on them. Those war surplus part must have gave Heathkit quite a edge allowing them to sell kits for far less than assembled equipment.
I loved mine till the transformer got some shorted turns between the some of the secondary windings and fried the wire wound pot for the main control. I still need to get around to rewinding the transformer. When it was working it was very accurate for both caps and resistors.
They must have got one sweet deal on all those post war parts. Might explain all the chicken head knobs on the equipment too. I wonder if the early scopes were running war surplus CRT tubes.....
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All the caps used in this cap checker are capacitors I have in my stash the only capacitor I'm worried about being able to get is a .00112 uF cap that's in the 12A7 circuit somewhere, is that one a critical value or can that one just be replaced with a regular .001 uF cap and just be done with it?
01-12-2022, 08:49 PM
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