Alan WA9IRS alerted me to this technical treasure trove. Pete Millett is an engineer who, in his spare time, scans and uploads books about electronics that are no longer under copyright. Great stuff! Thanks Alan! Thanks Pete!
http://www.pmillett.com/technical_books_online.htm
Tube Radios • Re: Regen with constant high frequency squeal - now w/ photos
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Did a brief experiment with decreasing detector drain load R to 50 k and
then 10 k relative to the original 100 k. Of course I had to readjust
regeneration...
4 hours ago