[ICOM] Final Output Transistors for IC706MKIIG

[Richard Eversole]

Depends upon the age of the 706MKIIG. There are two different sets.
You can only get the newer transistors to the best of my knowledge...

First units, used Motorola *SRF-J7044* MOSFETs. When they become obsolete,
at about serial number 15xxx, Icom modified the final amplifier to use new
devices, the (now) common *RD70HHF1* (HF/50) and the *RD70HVF1* (VHF/UHF).
These transistors have a diferent case and can't be fitted to the old PCB
without (at least) some physical mods. SRFJ7044 are obsolete and almost
impossible to locate, so only solution so far was to buy a new PA BOARD
from Icom... not cheap!

From: http://jvgavila.com/ic706.htm

Which has extensive instructions on repairing these transistors.


Rick "The Rhino" N6RNO
@Tehama October 4-5, 2014
Where will you be?

http://www.cqp.org


On Wed, Jan 1, 2014 at 7:32 AM, Floyd Petri <fpetri at eastex.net> wrote:

> Does anyone know the correct nomenclature and numbers for the Final Output
> Transistors for the ICOM IC-706MKIIG? And where they may be obtained
> reasonably?
>
> Floyd
> KF5YDH
>
>
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