In article
,
wrote:

hi Telamon!

i am now heavily into vacuum tube theory and designing radios. made a
single NPN radio as well (PDF on site). i will likely sell off my
commercial radios as the noise floor can be heard on even my single
active device radios (BCB to 10 MHz). 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 bought a Navy LM-15 meter
from W.W.II. wow! i now understand what you meant by quality. lets not
talk about "that" radio. i can now hear all my favorite polka using a
lowely triode.

Good to hear from you again and that you are still having fun with the
hobby. What are you spending your time listening too these days?

I'm still a program listener kind of guy.

--
Telamon
Ventura, California

howdy Telamon!

good hearing form you too! i'm having fun designing and building
simple (often single active device) radios. others run them in
contests. i listen to some kooks on shortwave. i would do more modern
design but it's not as fun programming PIC's, designing PCB's, and
"glueing" together chips. i would rather be winding toroids and
soldering on tube sockets.

regards,
phil

In article
,
wrote:

howdy Telamon!

good hearing form you too! i'm having fun designing and building
simple (often single active device) radios. others run them in
contests. i listen to some kooks on shortwave. i would do more modern
design but it's not as fun programming PIC's, designing PCB's, and
"glueing" together chips. i would rather be winding toroids and
soldering on tube sockets.

What are you doing with the PIC's?

Is there a reason you use that one brand and not another vendors
microcontroller?

--
Telamon
Ventura, California

hi Telamon!

actually i was not working with PICs, i only looked into them. do you
have a favorite brand of MCU? i am not real up on them. btw, many had
trouble with my Hellenedyne so i designed a more reproducible circuit.
after much debate we figured out that the Hellenedyne was NOT working
as i thought! it may actually be a new type of detector: it is a
regenerative plate detector. i posted several PDFs. i now listen to
shortwave on a single-triode, 27 volts of plate, using modern 16-ohm
earbuds, and at normal-ish volumes!

http://home.comcast.net/~phils_radio_designs/

Happy Holidays!
phil

In article
,
wrote:

hi Telamon!

actually i was not working with PICs, i only looked into them. do you
have a favorite brand of MCU? i am not real up on them. btw, many had
trouble with my Hellenedyne so i designed a more reproducible circuit.
after much debate we figured out that the Hellenedyne was NOT working
as i thought! it may actually be a new type of detector: it is a
regenerative plate detector. i posted several PDFs. i now listen to
shortwave on a single-triode, 27 volts of plate, using modern 16-ohm
earbuds, and at normal-ish volumes!

http://home.comcast.net/~phils_radio_designs/


No I don't have a brand I like to work with. I don't much experience
with them.

Looks like you have been having fun with regenerative tube circuits. 9
to 12 Volts seems low for a tube plate voltage. It is almost like
working with transistors. Pretty cool.

--
Telamon
Ventura, California