Did my amp fry?

It has to be your settings on the amp. Try turning off the Pre or something or turning off the side band switch.

 

Sounds like your not matched properly, and the oscillations from overheating ate the keying transistor. This causes the keying relay to stay energized as soon as you turn it on. Total disconnect from radio to antenna. Probably the most common failure in the Texas Star line and no doubt your failure was similar. Replace the keying transistor and quit over driving it or next it will be the finals going.

 

Actually it is what you are saying by reading your beginning post. Moot point. Until you fix the amp and post real numbers all anyone can do is post likely explanations and plausible theories.

 

What is the radio DKing?

Most Amps don't like allot of DK out of the radio....I usually have my radios DK set at around 2w's and let them swing from there, and seldom have issues with the Amps.

 

My experience, even with the so called "high drive" amps is you want to low drive them. I would say you have found out what 4 watts into your amp will do for you! Did you run it on high? I've always ran a amp on the low setting. The harder you drive it the hotter it gets and the sooner it dies. I have ran Texas Star 350 HD, 667V, and few other odd ball ones and now a KL 300.....never had a problem with any of them using the above mentioned methods.....i.e. low watts in and on the lower setting on the amp.....except for the occasional very brief periods on high with everything cranked wide open.

 

Yep ....


I have cooked a qmp or 2 it dosn't take much ......