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I've been talking about it so long, I thought I should let you guys have a look at it. The box on the top is
N3ZI's FB freq counter. It sits on the top cover of the TX -- the cover is made from the side panel of a dead computer that I found on a street in London. The metal cabinet is a "kickpanel" -- the kind of thing they often put on the bottoms of frequently used doors. Mine was purchased at Farmer Brother's Hardware on Fulham Road, London. One switch is for T/R. The other is for spotting (netting). I put the LED in there so I wouldn't forget to turn it off (and because Billy likes LEDs!) Circuit diagrams and LTSpice models appear in previous blog posts.
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Moving inside, we see that the "chassis" is actually a kitchen cutting board, this one from a Dyas store in Windsor, England. In the lower left there's a board with the AF (mic) amp. Center front is the VFO box (elevated above the main chassis by wooden blocks in order to put the tuning cap in a comfortable position). The balanced modulator is on the left. The long rectangular board in the center-right is the 4 stage amplifier. Note the black wire suspended above the connectors -- that's an antenna for the oscillator -- it allows me to hear the oscillator signal with my Drake 2-B while in "spotting" mode (while putting the TX and the RX on the same freq.)
HAPPY NEW YEAR FROM ROME!
Hi Bill,
ReplyDeleteThis is inspirational stuff! Thanks for sharing.
73,
Niels PE1OIT.