Two, RCA Radiotron UX-112A, #12A globe/balloon, match pair, 12A, CX-112A equ

Description

Two, RCA Radiotron UX-112A, #12A tubes, with the globe/balloon glass envelope. These are of course exact equivalents to the CX-112A/CX112A, 12A, and 112A tubes. Used and tested on a Hickok TV-3 military tester that has been calibrated. Firm bases, excellent silvering. Tubes are matched for dynamic gain and structure- test at 2325, 2200 where pass/fail is 1040 micromho. These tubes measure at new levels for dynamic gain. The tubes have the same structure inside and out.
Many other lots of tubes for sale this week.
Shipping is free within the continental US. Elsewhere- exact postage only, no packing fee.