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Heathkit TT-1 Tube tester - inspected and tested - good original condition, US $71 – Picture 0
Heathkit TT-1 Tube tester - inspected and tested - good original condition, US $71 – Picture 0

Heathkit Tt-1 Tube Tester - Inspected And Tested - Good Original Condition

US $71

  • Burnaby, BC, Canada
  • May 26th
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A Heathkit model TT-1 mutual transconductance tube tester from the mid 1960's, from a repairman's estate. I have done a basic inspection on the unit and it functions as intended, but should probably be refurbished with some modern capacitors and other parts to ensure reliable operation. It was brought up to operating voltage very slowly on a variac, and I have tested a 6V6, a 6B4G, and a 6BQ5 with expected good results. Switches have been very lightly sprayed with contact cleaner and lubricant. The overall wiring assembly of the original kit is satisfactory, but not at the professional level one would expect with a factory assembly. It does show some soldering iron scorched wire insulation from careless repairs or original assembly, but again, its satisfactory. I thinks with some basic TLC by the right person it will be a fine asset to the test and repair bench. I don't believe it was used all that often, as it doesn't really show the panel and socket wear from regular use like many testers I've had in the past. The meter does have a crack in the plastic but is otherwise good,  the case is very worn on the top as shown as it was likely left off the unit, but the panel and controls are relatively clean. The roll chart is in great shape and is dated from 1970. The capacitors are date coded from around 1964. Compactron adder is missing, but not really needed anyway. No original manual, a copy has been included. All other assembly and additional tube data lists are available online. Plastic Heathkit badge is long gone. Power cord is original. A great tester for all regular audio tubes and related audio power tubes, as well as vintage radio tubes. Will be well packed for shipping in a suitably sized heavy wall carton, expedited shipping with tracking,  insurance, and delivery confirmation, WITHIN CANADA AND THE USA ONLY, no offshore direct foreign shipping, the unit is just too large and heavy. All items sold as-is, Paypal payment within three business days please, thanks for looking and good luck! 

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