4 May
2025
4 May
'25
8:23 a.m.
On Sun, May 4, 2025 at 2:15 AM Ethan Dicks <ethan.dicks(a)gmail.com> wrote:
I read deeper. The manual only says that the RTC is "optional".
Doesn't make a clear distinction by part number.
I'm still pretty sure the 307 designation was RTC-only, no KWV11 parts
populated.
-ethan
>I have a
Grant Technologies 306A/307...
The Grant Technology 306A is the fully-stuffed KWV11 + RTC board. If
it's 1/4 stuffed with just the RTC portion, it's a 307.
Manual at:
http://bitsavers.informatik.uni-stuttgart.de/pdf/gtsc/979-0021-306_GTSC306_…
RT-11 routines at:
https://archive.decromancer.ca/pdp-11.classiccmp.org/RT-11/freeware/decus11…
One 306A sold last year on fleabay for $27 plus shipping. If I had
seen it, I probably would have bought it.
I don't think there are any photos easily findable online. The manual
on bitsavers has some great technical details but sadly no schematic.
Enjoy,
-ethan