[VHFcontesting] Yaesu FT-736 1296 power amplifier

[K3SK at buckwalter.co]

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 at contesting.com> On Behalf Of
mikflathead--- via VHFcontesting
Sent: Friday, August 29, 2025 2:08 PM
To: VHF Contesting <vhfcontesting at 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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