Peter wrote:
On Mon, 07 Mar 2005 22:16:01 -0500, Ken Scharf
wrote:


wow, those 1N21/23 diodes are stone age!


BTW those diodes a dated from the
1940's!



So am I (1937 actually) but I still work fine!! Just 'coz it's old
doesn't mean it's had it! :-)

Peter, G3PHO
Never meant to infer that old stuff doesn't work (and sometimes well)
after all some of the guys on this NG also frequent the antique radio
NG. I wasn't aware that the 1n21/23 series diodes were considered
state of the art until the late 70's/early 80's though. Actually
in the 60's many hams used PAR-AMPS (which are a kind of MASER!)
in front of their diode mixers. (I remember an article in QST from
the 60's on a reflex klyston pumped par-amp using an early
varicap diode).