[TenTec] Hercules 444 amp

[John King via TenTec]

What is the transistor number for the final transistors in the Hercules amp.??? Thanks, John, K5PGW 
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On Sat, 8/9/14, Brian Carling <bcarling at cfl.rr.com> wrote:

 Subject: Re: [TenTec] Hercules 444 amp
 To: "k9yc at arrl.net" <k9yc at arrl.net>, "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
 Date: Saturday, August 9, 2014, 9:12 AM
 
 Seems like a lot of RF power
 transistors are similar, so it should not be too difficult
 to find a substitute.
 
 Best regards - Bry Carling
 
 
 
 > On Aug 9, 2014, at 8:56 AM, Jim Brown <k9yc at audiosystemsgroup.com>
 wrote:
 > 
 >> 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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