WA6CGR/WB6ZSU 900 MHz Driver Amplifier

.030 Duroid compression soldered to copper Heat Spreader.

P.C. board cut with X-Acto knife before adding passive components.

Amplifier testing on temporary heat sink.

Amplifier mounter in Kenwood TK-931 in place of Motorola module. Specifications: 1.5 Watts Out, 300 mA, 12 Volts Unconditionally Stable from 9 Volts to 24 Volts all Phase Angles, 42 % efficient.