Date: Fri, 08 Dec 2017 13:22:52 +0000
From: Conrad PA5Y <g0ruz@g0ruz.com>
To: amps@contesting.com
Subject: [Amps] Fasteners in tank circuits
<Some time ago I made a 8877 amplifier for 6m. It was a little low on
<efficiency, it turned out that you cannot use brake pipe as it contains
<nickle.
<Ever since then I have used soft copper or silver plated copper and
<brass in my VHF amplifiers and I have used brass fasteners throughout.
<In my latest 3CX800 6m amp which goes live this weekend I have
<fabricated my own tune C from some pieces of aluminium and a few parts
<stolen from another capacitor. Need I worry about the brass screws used
<to fasten the copper strap to these aluminium plates? It will be bone
<dry in the anode compartment so I am hoping that corrosion cannot occur
<as there will be no electrolyte. I could coat the fasteners in some nice
<HV varnish that I have to keep any air out if anyone thinks that it is
<necessary.
<Comments?
<Regards
<Conrad PA5Y
## Dont worry about it. Brass works just fine with aluminium.
Jim VE7RF
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