Vintage Jackson Model 435a Tube Tester

US $120

  • Granite Bay, California, United States
  • Feb 13th
Very nice early tube tester Jackson model 435A. It has a beautiful huge neon lamp for the short test, and utilizes an O1A as a rectifier. It has the tube chart fixed on the inside of the lid. The case is not in good shape and one of the hinges is falling off, but the chassis is in very nice condition, please, see pictures. The panel is very sturdy and the inside looks original and untouched, so it should be easy to repair/calibrate. I tested some known O1As and the indication is lower than it should, the needle barely moved for a weak O1A and moved halfway inside the "bad' side of the scale for a good tube. I also could not adjust the line voltage to 100%, please see picture. So the good news is that the meter and the transformer must be good, but it will need calibration. I'd replace all capacitors with new ones as a start. I have not tested any of the VOM functions, but if the meter is good, it should be easy to repair if those functions do not work. Buyer pays by Paypal in 3 days of end of  auction and I will ship economy to the 48 contiguous states in 3 days of cleared payment. International sales only through ebay's global shipping program.

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