Two, new in box, National Electronics branded, EI manufactured 12AX7A/ECC83 tubes. Long, smooth, grey, 17 mm plates, halo getter.  EI is known as the Telefunken copy, where the same tooling was used, manufactured in Yugoslavia. Tested on a Hickok TV-3 military tester that has been calibrated. Straight pins, excellent, original logos, excellent silvering. Tubes are matched inside and out for structure and test at 2375-2250, 2312-2312, where pass/fail is 950 micromho. They 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.