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I do have one of those exact Super Penetrator 500 antennas......
Mine is "New, Old Stock" still in the original box, which the box is a little worse for wear, but has not ever been opened......Stored in a dry environment.....
I had purchased two of these at the same time many years ago.... I...
Updated......
I have
Original Toshiba 2SC2879 transistors ...... from RF Parts
$180 each ......
I also have Texas Star amplifiers....All in like new condition.....
All amplifiers do have GENUINE, ORIGINAL Toshiba 2SC2879 transistors in them......
All have wiring upgrade.......
All work very...
Yes, and they are attached just so-so....... through some very thin printed circuit strips that will not carry very much current to the output transformers......
I use very good Marine grade, fine strand cable and attach them directly to the output transformers where the voltage and current is...
Each red power wire feeds ONE amplifier board.....
No need for 4 negative (ground) wires, as the entire heat sink is a ground......
and each board is grounded to the heat sink in 5 spots.....
AND
Recon
One 6 gauge wire is not good enough?
I did not want to clutter up the amplifier internals...
Yes, the build quality did change.......
I have some DX350's and DX500's a little older that are in "like new condition" that I have upgraded and do have original Toshiba 2SC2879 transistors......
They perform quite well on 10 meters.....
I haven't read this entire thread, BUT......
I suggest you get the manual out for that radio and do a complete CPU reset.....
I have brought two ICOM 718 transceivers back to life just by doing that.......
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Yeah, I have got to the point where any time I do work on any Texas Star amplifier, I always pull the board/boards out for inspection underneath.
And when I reinstall the boards, I put a thin layer of Teflon sheet under the board just to prevent that very issue......
Good call.....
Well, if the amplifier is popping fuses as soon as you connect it to voltage power after replacing the fuse, then it is just a simple matter of determining which component or components is shorted directly from the voltage supply directly to ground.....
Several components are connected directly...
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