You could open it up and see if any 'spare' parts fall out, or if any of the components on the board look like they have let out their magic smoke. Missing/blackened traces on the PC board would also be a telltale sign.
(I am assuming that any failure that actually created a loud noise ought to be visible.) Mark AD5SS On Sat, Dec 10, 2011 at 3:25 PM, Keith Heimbold <[email protected]> wrote: > Wayne- > > I am a bit embarrassed about something that just happened in my shack because > i think i just blew up my external 6m preamp. > > I was putting in line my six meter preamp and using a db15 Y connector with > my Yaesu Quadra amp on the other connector. I was not transmitting and just > getting it connected and then I heard a super loud pop. > > I disconnected eveything and then tested the transceiver and the amp. The K3 > is fine but the amp was locked. I turned off the amp and restarted it and and > it was fine. I reconnected the preamp and put the antenna in direct line > with the K3 disconnecting it from the amp. The preamp when energizes reduces > the signal strength. I think the pop came from the preamp. It is hard for me > to isolate the noise source because I had my headset on. For sure it was > working for about 20 seconds and then the pop occurred. It scared my dogs and > myself it was so loud. > > I am not sure how I can test the preamp to see if it indeed blown. Any > thoughts would be appreciated. > > Thanks, > > Keith > AG6AZ > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
