[ARC5] 18S-4 Now and Later - Control box circuitry

[Howie DeFelice]

30+ years ago I went on a service call to repair a two-way radio in an old fire truck. The complaint was "no transmit". It was a very old model Motorola if I remember correctly. I wasn't familiar with this radio so I turned on the master battery switch, hooked up my wattmeter,sat in the drivers seat and pressed the PTT button. I was the only one in the firehouse and you could hear a pin drop.... until I hit the PTT switch. I was not expecting the huge "kerchunk" of the relay and the "jet-engine-starting-sound" of the dynamotor coming to life. The dynamotor was mounted under the seat I was sitting in and I nearly jumped through the roof of the truck :)  Glad I was allot younger then, not sure what the effect of that kind of surprise would produce now ... 

Howie AB2S