Unique broadcast from WA2XMN on 42.8 MHz on the 19th of June 2025
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While we are all familiar with the 88 to 108 MHz FM broadcast band today,
its origins can be traced back to 1936 with the very first experimental
station...
1 hour ago
That's a nicely done homebrew! I'm inspired to break out the parts box and soldering iron.
ReplyDeleteI have nearly all the parts, even the vernier drive. But not the FB enclosure.
Nice job.
ReplyDeleteIn their design Wes and Roger had 3seperate boxes:
VFO, transmitter and receiver.
The VFO had feedthrough caps on the DC voltage line.
This would greatly reduce the harmonics described by builder.
A seperate shielded VFO reduces
ReplyDeletemicrophonics . sorry poor English
See Part 3 on this web page:
ReplyDeletehttp://www.qrp.pops.net/hf-ragbag.asp
Bernt Diethard, Berlin