Weston Vacuum Tube Tester Model 686 type 9-B

Manufacturer: Weston

Model Number: 686 type 9-B

Serial #: 529

Equipment Description: Vacuum Tube Tester

Label Write-up:
A true mutual conductance electronic tube analyzer. The lower panel contains a DC and AC power source, with separate controls for each tube element potential. The center section contains meters and metering switches. A large fan shaped instrument calibrated 3,000, 6,000, and 15,000 micromhos indicates mutual conductance of the tube under test. All power supply potentials terminate in a row of individual pin jacks.

Dates Produced: 1935

Original Price: $835

The museum's inventory number: MRT-1206

Located at Museum in: Test Equipment Room