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Tiny GE 7486 planar triode, measuring 12x12mm (the penny is 20mm across). This is an oscillator/amplifier variant of the 7077, capable of 300mW output at 450MHz.

Markings are 67-48 and 68-13.

Heater connections are the buttons at the bottom, grid is the ring and anode the plate at the top.

.7486
Thanks to John Kaesehagen for this info.

This file was last modified 14:49:07, Tuesday September 02, 2014