If memory serves the diodes need to be configured push-pull for
amplifier use and push-push if employed as an oscillator. . Its
important to use a very noisy buffer in front the oscillator to cancel
the hash inherent to the diodes.The second diode acts similar to a
screen for steering
Phil Galasso wrote:
----- Original Message -----
From: "Bob Deuel" > Larry's tongue in cheek comment employing 866's as a
linear amplifier tube
prompted me to contribute the following: Certain full-wave rectifiers can
be
configured to amplify or oscillate. I have built audio, Hartley and
Simpson
oscillators using only 6AX5GT's full-wave rectifiers as the sole active
device. These were displayed at 2004 Mid-Atlantic Antique Radio Club Meet
and actually won a Blue Ribbon.
Could you get me a copy of the article or point me to a place where I could
get it. That is MOST interesting. I have seen vacuum tube diodes used as
noise generators (the 5722 comes to mind here), but I have never seen them
used as amplifiers or oscillators.
Phil K2PG
______________________________________________________________
AMRadio mailing list
Home: http://mailman.qth.net/mailman/listinfo/amradio
Help: http://mailman.qth.net/mmfaq.html
Post: mailto:[email protected]
AMfone Website: http://www.amfone.net
AM List Admin: Brian Sherrod/w5ami, Paul Courson/wa3vjb
