13 Feb
2009
13 Feb
'09
5:49 p.m.
Josh Dersch wrote:
Hey all --
While I'm waiting for other parts to arrive for my Tek project...
anyone know where to find 12.44Mhz crystals? I acquired an old SSM
VB1B video card (with an amazing 64 cols by 16 rows display
capability!) that was only mostly-assembled, and the crystal is missing.
According to the manual
(http://www.classiccmp.org/dunfield/s100c/ssm/vb1b.pdf), it's a 12.44
Mhz part but I can't for the life of me find one anywhere -- even my
Google searches mostly return links to the VB1B manual :).
(And while we're at it -- my Tek project needs a pair of 39M-ohm
resistors... anyone know where to find _these_? I know I can hack one
up by putting a few others in series, but it's quite a mess...)
How about this:
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=SM104F…
40M +/- 1% is within 3% of 39M (which was probably +/- 5%). ~$5 each at
DigiKey
Most standard resistors top out at 10M or so, some specials at 22M. 39M
gets you to the esoteric range.
Thanks,
Josh