[HomeBrew] Homebrew Think Tank

[Dan Evans]

Well, I can share a couple of projects I'm currently working on.

The first is a IF switch box to select one of 4 transverters for my VHF
contest Rover setup.  I currently have transverters for 222Mhz and 432Mhz
that use a common IF rig, my Icom 746.  So I need a convenient way to switch
between them.  There are more elaborate ways to do it, but I'm going to
build a switch using a switch box designed to switch one computer to 4
printers.  This is basically a 25 pole, 4 throw, switch that I will be
changing out the db25 connectors for bnc and RCA jacks.  I have most of the
parts ready, just waiting for some of the connectors to come in the mail so
I can get out the drill and soldering iron:-)

Another project that has, finally, reached the gathering parts stage is a HF
tube type amplifier.  I've been interested in this for years and have been
doing some research and learning for the last couple of years to prepare.  I
recently scraped out a couple of microwave ovens for parts, and hope to use
the power transformers.  Right now I'm leaning toward building around a pair
of GI7B's.  Or maybe a single GS35, although I don't think the microwave
transformers would have enough suds for the GS35.

Oh yeah, I'm also building a 30amp, 13.8vdc power supply, but that has kind
of taken a back burner for now...

73
Dan

Dan Evans K9ZF
Scottsburg, IN 47170
{EM78}
K9ZF /R no budget Rover
ex-N9RLA
Check out the Rover Resource Page at:
http://www.qsl.net/n9rla
QRP-l #1269
Central States VHF Society
IN-Ham list administrator


----- Original Message ----- 
From: "Mike D." <hrg@cifnet.com>
To: <homebrew@mailman.qth.net>
Sent: Thursday, April 01, 2004 7:06 AM
Subject: [HomeBrew] Homebrew Think Tank


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