Bob, the glue for the silicone rubber chimney extensions isn't very critical
-- I've used ordinary household rubber cement for this, and it works
perfectly on all sorts of external anode tubes. This is not a very hot spot
(or it had better not be!), as the exhaust air from an 8877 shouldn't be
hotter than you can comfortably hold your hand over. -WB2WIK/6
"If everything seems under control, you're just not going fast enough." -
Mario Andretti
> -----Original Message-----
> From: Bob Maser [SMTP:bmaser@tampabay.rr.com]
> Sent: Wednesday, January 01, 2003 5:27 PM
> To: amps@contesting.com
> Subject: [Amps] Need help with HB 8877 project
>
> 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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