I have run a couple of quick tests on the ugly VFO. It covers 6.62MHz to 6.73MHz, somewhat wider and lower than its 7.0MHz to 7.1MHz design range. But since this was just a test piece, I had not bothered to include any trimmer capacitors to adjust this.
Stability was a bit variable. In two 15 minute tests, I got drift of 40Hz and 350Hz respectively. I am glad there is a bit of drift; when I add the "huff and puff" stabiliser, it should be clear whether or not it improves things.
Subscribe to:
Post Comments (Atom)
Hello again
Fifteen years later and I finally post something new 😀 I am keeping this blog as an archive and have started a new one for my current activ...
-
It has been three months since I switched on the soldering iron! Blame it on work. At least the Christmas holiday has given me the chance ...
-
See if you can spot my deliberate mistake. Today it was time to align the Filter Board for transmit. I rigged up a dummy load and power me...
No comments:
Post a Comment