Weston 686 type 10A Electron Tube Analyzer. This is not another tube
tester, but a true laboratory instrument for testing tubes under exact
operating potentials. It tests for mutual conductance at the
manufacturer's rated operating condition. Precision tube matching at
all parameters can be conducted. Experimental tube circuits can easily
be set up for study. Also tests for hot and element shorts leakage. The
main panel is 26"H x 19"W, and includes all necessary jumper cables. 13
sockets handle tubes from the earliest 4 pin types through 9 pin
miniature tubes. There are SIX precision meters that measure all
parameters. Includes copy of the original operating manual and the
original tube set up manual. Price $1250.

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Weston 686 type 10A Electron Tube Analyzer. This is not another tube
tester, but a true laboratory instrument for testing tubes under exact
operating potentials. It tests for mutual conductance at the
manufacturer's rated operating condition. Precision tube matching at
all parameters can be conducted. Experimental tube circuits can easily
be set up for study. Also tests for hot and element shorts leakage. The
main panel is 26"H x 19"W, and includes all necessary jumper cables. 13
sockets handle tubes from the earliest 4 pin types through 9 pin
miniature tubes. There are SIX precision meters that measure all
parameters. Includes copy of the original operating manual and the
original tube set up manual. Price $1250.