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[Amps] Need help with HB 8877 project

To: <amps@contesting.com>
Subject: [Amps] Need help with HB 8877 project
From: 2@vc.net (2)
Date: Wed, 1 Jan 2003 18:11:53 -0800
If you need c. 5 out, a single, larger tube would be less problematic and 
less costly.  The 226 will do ok at this level if one drills a grid of 
small holes in the chassis below the coil to let cooling air flow upward.

>I am new to this reflector so let me introduce myself.  Bob Maser W6TR and I
>am in the Tampa, Florida area.  I am in the process of building up an amp
>that will use a pair of 8877's.  My plan is to use a B&W 852 inductor and
>wonder if it will take the currents.  The P.S. will be 3800 to 4000VDC for a
>plate load impedance of ±1500 - 1700 ohms, which I think means that it will
>see 10A at resonance. I also have a Johnson 226-1 rotary inductor but I
>would really go with the switch instead of the crank. I really only operate
>20 and 75 ssb although the amp will be capable of 15 to 75.
>
>I also need some guidance as to what "glue" should I be using to make the
>chimneys.  I have a supply of Silicone rubber sheet 1/8" thick that I'll be
>using above the teflon standard issue chimneys like Alpha does.
>
>Thanks
>
>
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>


-  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, 
www.vcnet.com/measures.  
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