Phase Noise Test Set Parts? While looking for wire-wrap tools in the garage, ran across bag of the HP11729 phase noise test set modules saved from a scrapped unit. Have the Low Noise Amp, 640 MHz filter/driver-amp & comb generator, and IF Amplifier modules. Not enough to replicate the full features of the HP11729, but might be fun to fire them up and see what works. Starting tests with the 640 MHz bandpass filter. #TestEquipment #PhaseNoise #RFTest