Thanks, Allision, for the definitive answer here. I've been using a buck converter to run my QMX off a 12V battery. I was hoping to come up with a ~9V LiFePO4 battery so that I can remove the buck converter from my setup but since so many people have kept suggesting it, I'm now looking into ways of integrating it into this DIY battery that I'm working on.
Best,
Sepehr Sahraian | N6IRN
President | Irvine Valley College ARC | N6IVC
LICW #6377? SKCC #28841? NAQCC #11811
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On Monday, March 31st, 2025 at 6:58 AM, ajparent1/kb1gmx via groups.io <kb1gmx@...> wrote:
Sepehr
?
The answer is 9V.? There is a little latitude maybe 10%.
?
The issue is higher voltages run higher power with the finals
and will increase current to the potential failure point.
So the BS170s would likely be more prone to fail.
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The rest of the radio due to the power conversion scheme is?
not impacted by voltage changes.? I just self adjusts.
?
Best approach is to use a good (electrically quiet) buck converter
to drop any voltage supplied to 9V.
?
--
Allison
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