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Need TA7089M

 

I read where Yaesu had a workaround for the TA7089M using the DIP version? and that would work for me too. Also a working PB-1436B IF board would work
The radio powers up but the VFO doesn't work and appears there is no regulated 6v to it supplied by the above IC
Any Leads appreciated.? I came into possession of a 301D with the power supply, VFO, and the scope.
The radio powers up but the VFO doesn't work and appears there is no regulated 6v to it supplied by the above IC

Thanks!

Marty
KL7AM
 

Try mouser and look for a 6 volt LDO regulator. There is always a work around.
 

Well, I have 6v but still neither the radio VFO or the outboard VFO work. The digital readout changes as it should with the band switch but no VFO
I tried to measure the radio VFO output with my scope but no joy.?

Will do some more checking..

----- Original Message -----
From: Robert Holsti via groups.io <rholsti@...>
To: KL7AM <w7apm@...>, [email protected]
Sent: Wed, 09 Nov 2022 09:38:04 -0500 (EST)
Subject: Re: [yaesuft301d] Need TA7089M

Try mouser and look for a 6 volt LDO regulator. There is always a work around.

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