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B&K 500 Tube Tester

 

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An excellent mutual conductance tube tester for tubes from the mid 1930s - 60s. Complete with the manuals, set-up charts and factory installed 510 adaptor that expands the types of tubes it can test. It's only negative is it cannot test the early large pin tubes of the 1920s & early 30s or the newer tubes from the late 1960s & 70s (compactrons etc).

Year: 1959
Case: canvas covered wood
Type of test: mutual conductance + good/bad scale
 

< reprint B&K Service & Instruction manuals available
the instrument has been SOLD, photo reference only
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