FS: New in the original box, with instructions, schematic, installation
info, etc. - one Hamtronics model LNA-20 10-Meter Receiver
Preamplifier. Requires +12 to +14VDC at 5 to 8 mA. Specs sheet says
that it's for the Ham Band 26-30 MHz (Useful Range MHz is 20-40), Noise
Figure = 0.9 dB, Gain = 20 dB, 1 dB compression point: 22,000
microvolts input (-20 dBm).
$15 plus postage.