I think I might have toasted a/some transistor/s last night. I dropped a test probe into my tape deck, and saw sparks. I put it back together to check everything and the transport motor was running slow. In the power inverter there is a blueish looking 2N1542, and some strange metallic crystal deposits on the inside of the case around this transistor. The transistors in the inverter check good. They both have a lower forward bias voltage .18V, but I am assuming that this is due to the fact that it is either a power transistor or a Germanium transistor. However, I have had transistors check good with on the diode setting of my DVM and they actually turned out to be bad. Any advice?
Thanks, Chris KQ6UP