esch- - high efficiency low noise rf microwave power amplifier esc- x - t drv- h- t brand new low noise rf microwave power amplifier premiun super powder high voltage for microwave power amplifier model escw- frequency conversion microwave power amplifier model escw- - super miniature size good stable...
envelope. marconi k klystron ( " high) > high-power rf triode. marked 'kmov k - act ' i found data on a similar looking act device, (below), described as a 'pulse modulator' valve, rated at kv, a. thanks to dave walker at london gatwick airport for the following info : they were used for the power amplifier...