Oh it’s one of those new age free energy amplifiers

This is from the schematic to a Tytera MD-380 radio.

Shown here is the mic preamp. I was curious to see what this looked like as transit audio quality and level are said to vary a lot from one radio to the next.

Unless I’m missing something – there’s no way for DC voltage to get in there and let those transistors do their job.

image

Annotated to show where capacitors block DC:

image
Looks like Miami traffic at rush hour--- it ain't getting in or out.

I’m considering buying one to play with but. .. uh… only somewhere with a good return/exchange policy.

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