Sorry to hijack this thread in the first place,
On Sun, Mar 19, 2023 at 8:51?PM Radu Bogdan Dicher <vondicher@...> wrote:
Lionel,
I have one on duty at the bench with 1.3GHz Channel C (I found it to be good to about 1.65GHz), the enhanced DMM, ovenized reference, two channels with the better front end, and I also have another three units for parts.\
could you tell me please the part number of the sequencer ROM (the 256
x 16 bit 1818-xxxx which is on the mainboard near the display)?
I've repaired quite a few 3528A/B but I've never found (and dumped its
sequencer ROM) of a DMM+1.3 GHz unit.
I'm not sure it's different than the one needed for 1.3GHz channel C,
but as I said, I've never found such a unit with all the options.
Thanks in advance.
Frank IZ8DWF
