Looks like RF Microwave out of the UK may have them.
https://www.rf-microwave.com/en/mitsubishi/m57762/uhf-power-amplifier-module/m57762/?srsltid=AfmBOor0HoSB0uAvNv0_xs7LJxauxOpSHV8sjUVp08kMZO_Gl1E3YQDZ
....Now if you could only get a package out of the UK headed to the US.
I went on a search for these a few weeks ago when I was testing an old DEMI
1296 amp. Thought that I smoked the modules but luckily turned out to be a
bad attenuator I was using.
GL
Scott AA5AM
On Fri, Aug 29, 2025 at 2:05 PM mikflathead--- via VHFcontesting <
vhfcontesting@contesting.com> wrote:
> Thanks for the heads up on the conversion. Mike
> On Friday, August 29, 2025 at 02:30:27 PM EDT, <k3sk@buckwalter.co>
> wrote:
>
> Convert it to the RA18H1213G which is a replacement for the obsolete
> M57762
> power module. The RA18H1213G requires significantly less drive power (200
> mW
> vs 1 watt) and a lower gate voltage (+5VDC at 1 mA vs +9VDC at 500 mA),
> resulting in a more efficient and simpler hybrid power amplifier design
> that
> does not require a heat sink for the control pin or bypass components for
> the hybrid. There are several sources on the web detailing how to do the
> conversion.
>
> https://www.ahrdf.net/forum/printthread.php?tid=800
>
>
> K3SK
>
>
>
> -----Original Message-----
> From: VHFcontesting
> <vhfcontesting-bounces+k3sk=buckwalter.co@contesting.com> On Behalf Of
> mikflathead--- via VHFcontesting
> Sent: Friday, August 29, 2025 2:08 PM
> To: VHF Contesting <vhfcontesting@contesting.com>
> Subject: [VHFcontesting] Yaesu FT-736 1296 power amplifier
>
> If someone has the final rf amplifier section in a module they don't need
> please let me know. I have purchased what I had hoped was a good M57762
> module but got a lemon. Thanks Mike
> _______________________________________________
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>
>
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