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Re: [Amps] Question about SPE 1.3K-FA amplifier

Subject: Re: [Amps] Question about SPE 1.3K-FA amplifier
From: Kevin Stover <>
Date: Mon, 9 Nov 2015 06:39:14 -0600
List-post: <">>
All of the LDMOS devices that I have seen are the twin cores in One "device" or package.
The LDMOS packages I'm aware of have a max dissipation rating of 1200-1250W.
The amp may have passed FCC harmonic testing thanks to a real good low pass filter but I'm pretty sue they don't test IMD nor do they test to see how long the devices last running above the dissipation rating.

On 11/8/2015 6:25 PM, Bill Turner wrote:
I think Tom, W2SC has the answer. When SPE says a "single device" they
mean a single package which has two transistors in it, and they are
running them in push-pull in the conventional manner.

Without a schematic one can not be 100% sure, but that is the most
reasonable explanation.

Thanks, Tom.

73, Bill W6WRT

R. Kevin Stover
FISTS #11993
SKCC #215
NAQCC #3441

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