13 Feb
2007
13 Feb
'07
10:55 p.m.
Tony Duell wrote:
The thing I am looking for (in the UK for obvious
reasons) is an HP9862
plotter with 9800-series interface module. Little chance of getting one,
though.
I have an HP9872A with both the 98135A interface module for HP-IB and the
98130A interface module for the 9815 calculator. I received it some time ago
as a package with a 9815, but have yet to take the time to get up to speed
with all the plotter stuff to even exercise it.
What I find interesting is the plotter has a 16-bit 5MHz single-chip
microprocessor (identified in the service manual only as "HP Microprocessor
(P.N. 1818-2500)") - pretty spiffy for 1977. One of HP's internal developments
that I don't hear or see much info about. The service manual doesn't provide
any info about the microproc internal architecture.