I accidentally hooked up my Lafayette 120 mobile to the power supply in the house backwards. (red to black and black to red) for about a minute, before smelling that "hot electronics odor" and realized what I did. The meter tells me that it still receives and transmits, but no sound. Any tips as to what I fried would be appreciated. Here's the schematic: http://www.cbtricks.com/radios/lafayette/telsat_ssb120/graphics/ssb_120_sch.pdf Oh, by the way, it had the PA circuit disconnected to accomodate the extra channel switch via the pa switch.