[Amps] 4 KW?

Fri Jun 24 14:18:59 EDT 2022

Date: Fri, 24 Jun 2022 06:14:27 -0500
From: Rob Atkinson <ranchorobbo at gmail.com>
To: "amps at contesting.com" <amps at contesting.com>
Subject: Re: [Amps] 4 KW?

<Never heard of the FU728F.  My concern would be that it vanishes like
<the 4CX1600.  Interesting about the failures.  I guess the type number
<is telling.  Say "FU" out loud.

<Rob
<K5UJ

It's a chinese version of a 4CX-1500B..on steroids.  It's a popular tube
that was used in Emtron amplifiers...and is currently being used in
OM-Power amplifiers.

1 Bad review on e-ham.

https://www.eham.net/reviews/view-product?id=12132

Jim  VE7RF