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[Amps] Dual Band 2m / 70cm PA

To: <amps@contesting.com>
Subject: [Amps] Dual Band 2m / 70cm PA
From: "David Smith" <vk3hz@wia.org.au>
Date: Thu, 30 Dec 2004 22:51:29 +1100
List-post: <mailto:amps@contesting.com>
Does anyone know of a design for a valve PA that covers both 2m & 70cm using the same tube?

I'm thinking about a compact PA for these two bands, possibly using a HV PSU from a Panasonic "Inverter" microwave, if I can get it to work.

Is it possible to design a common plate line, given that the bands are harmonically related (e.g. 1/4 WL on 2m = 3/4 WL on 70cm)?

Regards,
David Smith
VK3HZ

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