9 Mar
2008
9 Mar
'08
1:33 a.m.
On Sat, Mar 08, 2008 at 06:15:13PM +0000, Philip Belben wrote:
Pete Turnbull:
>So replacing the missing or damaged 6520 with a Motorola MC6821, which
>should be much easier to find, even has a degree of authenticity :-)
I have done this as well and not noticed any unusual behavior. Because
there was a 6821 on every COMBOARD-I, I have a few in my parts box, but
not many 6520s. It also works on the display board for an AIM-65, FWIW.
Thanks for the tip. 6821 or 6820 goes on my mental
wish list.
Try Unicorn Electronics - http://198.170.117.30/IC/6800.html - $3.49
each, but they do have a $20 minimum order.
-ethan
--
Ethan Dicks, A-333-S Current South Pole Weather at 9-Mar-2008 at 09:30 Z
South Pole Station
PSC 468 Box 400 Temp -58.5 F (-50.3 C) Windchill -76.9 F (-60.5 C)
APO AP 96598 Wind 3.6 kts Grid 41 Barometer 682.0 mb (10553 ft)
Ethan.Dicks at usap.gov http://penguincentral.com/penguincentral.html