Hi, I know this is an old post, but same puzzle here.
Trimpot R1185 and nearby flood-gate related components (appearing in the available PDF manuals) aren't physically present in my storage board (dated 1965).
Any clues on the storage circuits evolution of this model?
Regards,
Sebastian.
Tim Phillips <tim@...> 06/20/10 #49860
from Tim P (UK)
I am trying to cal a 549 storage 'scope ser# 701529
The manual refers to FG cathode level R1195, but
on this instrument this pot does not exist. In fact
it appears to have never existed on this storage board
(dated 1965). Both my manual and the BAMA one show it
(sectn 6-45 and the schematic) There must be another
manual with a different cal procedure. Anyone have any
insights ?
many thanks (confused) Tim P