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Other Electronic Projects • Re: Alfred P. Morgan one transistor amplifier
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Hi Garry.
Allowing DC to pass through sensitive phones should be avoided if possible.
Your Brandes set would be marked for polarity for two reasons, firstl...
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