RadioBanter - View Single Post - Hellenedyne: a new type of regen-reflex radio

Brenda Ann · October 13th 08, 03:35 AM posted to rec.radio.shortwave

"Dave" wrote in message
...
elaich wrote:
wrote in news:496c922c-a06e-4e9b-a32a-69c2d97dd8d7
@g61g2000hsf.googlegroups.com:

others are successfully using
the Hellenedyne up to 25 MHz. my daily listener is a multi-tube
homebrew of my own design (PDF pending).

I intend to build your simple little radio, if nothing else, to prove
that a one tube radio is a one tube radio. You can add regen to it, but
it is still a one tube radio. I built one in 1967 - it could get my 5,000
watt local AMer, and that was it. Regen will help, but it can't even come
close to even an AA5 for sensitivity and selectivity.

Regenerative receivers have tons of gain and are very sensitive.

Very sensitive, not bad selectivity, but a lousy noise floor..