Pile of Pre Amplifiers

Started making a pile of preamplifier options for 10 GHz, 1296 MHz and 432 MHz.

Down East Microwave - 1296 16dB .70 NF
K4EME - 432 21dB .30 NF
K3IB - 1296 15 dB 1.2 NF
DU3BC - 10 GHz 28 dB .55 NF

Mini Circuits directional coupler for return loss measurements.