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Lot of 2 vintage audio circuit boards woth Filter Blocks: Labeled S.A.E. (along with internal assembly/part numbers like 16766765 and S.A.E. spec codes 10771, 10769, 10766).
Trimmers: Manufactured by Helitrim (Beckman Instruments division).
Board Assembly: Custom/OEM proprietary assembly with hand-written serial marking J3212CM167835A.
Sold as- is for harvest, collection, display or prop. There\'s 2 heavy mil spec handmade audio/Arospace circuit boards in this lot. I wasn\'t sure if I could scrub the stuck on sand off without damaging the old components and I figured that was a decision to be made by you, the buyer, so what you see on these 2 boards in the photos is what you will get.
Please closely review all photos for the condition details. I do apologize for the crustiness, but they really are full of patina!
The edge connectors are silver in color and likely palladium alloy.. these have not been tested for functionality.
