16 Jul
2007
16 Jul
'07
9:59 p.m.
Rick Bensene wrote:
flip-flops to retain the state for rewriting back into
core. It's very
unlikely that the direct output of the core could drive nixie tubes.
The core outputs are typically very low voltage, low current pulses that
require either pulse transformers, along with further amplification to
make into usable logic signals, or all-transistor sense amplifiers. I
suppose that some kind of core-based amplifier could be used, but it
would be more like a transformer than a pure core, with a small primary
winding, and a large number of secondary windings.
Chuck was alluding to finding <what-ever> appropriate cores so I was thinking
of it as being open-season on the design, not necessarily the "off-the-shelf"
cores that would be used 50 years ago. The thought was carrying over from the
discussion last week-or-two about core-logic and the clock drivers pumping
the energy into the system. I don't see any reason it couldn't be done, in
principle. The voltage may be an issue as you say, but if you're starting from
scratch you could wind cores with a special output winding or use step-up puls
transformers. Granted that by the time you sit down and do the design ther
might be push-back from some other part of the design that makes it not worthwhile.