Re: Teledyne GPD462

Phil Hobbs wrote:

Don wrote:

Phil Hobbs wrote:

brian wrote:

I saw a paper (https://apps.dtic.mil/sti/pdfs/ADA030178.pdf) , active
antenna referring to a GPD 462 . - Hybrid amplifier
>
Does anyone know what the internal circuitry was?

>
That’s one of Avantek’s “low cost” hybrid MIC amplifiers. I used its
brother GPD-464 a fair amount back in the 80s. They were cheaper than their
very nice GPD-211 iirc.
>
AFAICT it’s a vanilla NPN Darlington, like most others of that era.
>
I still have the databook someplace, I think.

>
I think you mean MMIC

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Nope.
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It’s a hybrid, not monolithic.

OK, an HMIC it is. Blame the pedanticism on my upcoming Extra exam.

Danke,

--
Don, KB7RPU, https://www.qsl.net/kb7rpu
There was a young lady named Bright Whose speed was far faster than light;
She set out one day In a relative way And returned on the previous night.