On 8/9/2014 12:37 AM, Douglas via TenTec wrote:
Has anyone figured out a substitute for the final transistors in the original
Hercules amp?
You might ask on the amps reflector. I suspect the answer is still no. I
owned one of these amps for a few years and sold it. The original story,
as I heard it, is that Motorola learned that the output transistors had
problem, and discontinued them.
The power supply also has a temperature stability problem that causes
Vcc to rise, which in turn causes it to go into self protect mode as it
warms up. I decided to fix mine with a fan on the power supply. :)
73, Jim K9YC
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