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The item is Pre-owned and has some signs of use/age
Please see all the pictures for its details and condition. The pictures are the part of the description and you will get the pictured item or similar one

Ballantine Model 304 Sensitive R. F. Voltmeter Instruction
$14.51
BALLANTINE MODEL 303 AC VOLTMETER
$749.79
Ballantine Model 5340 50 Ω Tee Adapter For RF Millivoltmeter 340
$19.99
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Alarms and Indicator Circuit diagrams