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Old 23rd Jan 2019, 12:30 am   #8
Martin G7MRV
Heptode
 
Join Date: May 2008
Location: Selby, North Yorkshire, UK.
Posts: 951
Default Re: High side high voltage MOSFET switching with 3V logic drive?

Those do look ideal, but a quick search shows them to be about two quid a throw! Would make for a very expensive project. Im only really doing it as a proof of concept (because someone challenged me to make a vintage military radio scan!!!)

I'll try the bipolar optocouplers, and see what affect they have on the performance of the receiver, and whether any effect can be trimmed out. I could probably rig just one coupler up on the radio to see what occurs, before building the rest of the project. If it needs the MOSFET types i'll have to reconsider whether its worth the cost.
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