Two, new in box, Philco branded, Sylvania manufactured, #45 tubes, with the shouldered glass envelope. These are of course exact equivalents to the UX245/UX-245, CX345/CX-345, 145, and 245 tubes. Tested on a Hickok TV-3 military tester that has been calibrated, just to make sure. Black plates, firm bases, yellow printed logo bases, excellent silvering. Tubes are matched for dynamic gain and structure- test at 2050, 2025 where pass/fail is 1170 micromho. The tubes have the same structure inside and out, having date codes "5210" and "5013", the 10th week of 1952 and the 13th week of 1950.
Many other lots of tubes for sale this week.
Shipping is free within the continental US. Elsewhere- exact postage only, no packing fee.