Used one for years for our VHF Contest group and rebuilt it several times.
C5 is a flat copper plate about 10 cm wide and 5 tall. It has flexible
brass sheet on each end that wraps back to ground to the aluminum box.
The brass is U shaped and acts as a spring to suspend the flat plate.
The tube has a copper ring that connects to the anode lines and has
another flat sheet of copper soldered to it to make the plate.
I glued teflon sheet (treated to make it glue-able) to the tune and load
plates to avoid dramatic events if the tuning every got too aggressive.
Look at http://www.qsl.net/dl4mea/2g35.htm for a similar design using a
GS35.
Also look at http://www.nd2x.net/base-1.html for a bunch of designs.
jeff, wa1hco
On 01/17/2013 05:40 AM, PY1NB - Felipe Ceglia wrote:
Hello,
Has anyone here ever built such an amp?
I'd like to see pictures of its internals, if possible.
I am not sure how C5 connects to ground, seems like the brass tube would
fit and move directly to a hole in the aluminum chassis?
Here is an AS-47 reprint: http://6mt.com/wpo2kwamp.htm
73,
Felipe Ceglia - PY1NB
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