Hickok 752A Test Results (Mutual Conductance – Gm). Manufactured by National Union Radio Corp. and accepted in March 1944. All 3 Tubes.
Item Tag: National Union Radio Corp.
4 NOS JAN-CNU-1625 Vacuum Tubes Lot WW2 National Union Matched 5000Gm Hickok 752
Hickok 752A. Every tube has been individually tested for shorts, leaks, and gas on a professional Hickok 752A tester. Manufactured by National Union Radio Corp. and accepted in March 1944, these are the ruggedized military 12.6V heater/7-pin base equivalents of the classic 807/VT-136.
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6 NOS JAN-CNU-1625 Vacuum Tubes Lot WW2 National Union Matched 4800Gm Hickok 752
Manufactured by National Union Radio Corp. and accepted in March 1944, these are the ruggedized military 12.6V equivalents of the 807/VT-136. Hickok 752A Test Results (Mutual Conductance – Gm). Every tube has been individually tested for shorts, leaks, and gas on a professional Hickok 752A tester.
Related Images:
NOS JAN-CNU-1625 Vacuum Tubes WW2 National Union Matched 4400 & 4300 Gm 752A
Hickok 752A Test Results (Mutual Conductance – Gm). Manufactured by National Union Radio Corp. and accepted in March 1944.
Related Images:
NOS JAN-CNU-1625 Vacuum Tubes WW2 National Union Matched 4900 & 4700 Gm 752A
Hickok 752A Test Results (Mutual Conductance – Gm). Manufactured by National Union Radio Corp. and accepted in March 1944.
Related Images:
4 NOS JAN-CNU-1625 Vacuum Tubes Quad March 1944 National Union Matched 4900 Gm
4900 Micromhos. Manufactured by National Union Radio Corp. and accepted in March 1944, these are the ruggedized military 12.6V heater/7-pin base equivalents of the classic 807/VT-136. This quad will be double-boxed.