25 Mar
2006
25 Mar
'06
2:46 p.m.
On 3/24/2006 at 10:53 PM ard at p850ug1.demon.co.uk wrote:
Yes, you're right. I was mis-remembering something I'd read in the RSGB
Teleprinter Handbook (RSGB = Radio Society of Great Britian, roughly the
same as your ARRL). In the edition that I have, it gives a schematic for
the Teletype 19, which uses a pair of thyratrons in the power supply.
There's a comment (references to some ARRL publication) that since these
are expesnive and difficult to find, if you have only one good one, you
can put an 866 rectifier in place of the other one (with a socket change,
etc). The PSU will still regulate correctly with just one good thyratron.
-tony
I can't remember. Is the 866 a pure diode, or
does it have a trigger
electrode?
Diodes, Had 'em in the power supply for my transmitter. There was a