I was gifted a "Modulator Power Supply MD-129A/GR" recently. It reportedly provides the power and plate modulation for Radio Transmitter T-217()/GR, part of Radio Set GRC-27 It was on the way to the scrap yard. It appears to be intact, but I haven't done an exhaustive check inside. I'm bringing it to SLO for sale/trade. See you all soon! 73 DE JIM K6FWT