My first repeater back in 1996 or so was a Motorola Research Line all tube 'coffin' eqquiped with a 'Sensicon G' receiver with ovened crystals in both transmit and receive strips. Controlling that was a CES Repeater Maker RM-10 with a custom built Voice IDer based on the Radio Shack carried ISD-1000A voice recorder.
The repeater did not have a duplexer, only 2 band pass cavities. The antennas were placed at the corners of a hotels tower for about 500 feet of horizontal seperation. The antennas were 2m Ringos, and there was no desense. The repeater was unpluged by one of the radio techs out of Vegas that was blaming it for interfering with the hotels repeater, which was still getting interference long after it was unpluged. But no dice, they wanted it out of there so it was moved. Later that summer it was decided that the 'space heater' effect of the repeater was no longer desirable it was replaced with 2 hand helds and a GE MASTR-II power block. The coffin was gutted out, and had an electric habachi installed to be transformed into the first Motorola fish smoker.
