Product code: Hickok tube tester setting roll 1954 532, 533, 534, 534a, popular 534 b, 600
This is a 1954 vacuum tube tester settings parameters roll for the popular Hickok electrical instrument company vacuum tube testers. It appears to be original and in very good condition.
This is a 1954 vacuum tube tester settings parameters roll for the popular Hickok electrical instrument company vacuum tube testers. It appears to be original and in very good condition.