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Old 30th Sep 2020, 10:52 pm   #1
Wendymott
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Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,782
Default VHF Sweep Oscillator and wobbulator

In the Test Equipment section Bazz was making enquiries re a suitable interface of a RF wobbulator and a scope.
I knew I had made a piece of equipment a few years ago to tune my 4 pole 2 metre filter.
I dug out the schematic to realise it was May 2000.... and my early schematics and pcb arts had been lost, except for the hard copy.
I have redrawn it to my DIPTRACE files and I show it below.. some may find it interesting....
After I obtained my Siglent Spectrum Analyser I decided it was surplus to requirements and was recycled...
I cannot remember the varicap diode types, but this may change if other ranges are required,
I just noticed the V input to the voltage regulators is marked +24V.. obviously this should be higher and is in fact +30V
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__________________
Should get out more.

Regards
Wendy G8BZY

Last edited by Wendymott; 30th Sep 2020 at 10:55 pm. Reason: Additiona
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