Questions - Universe/68, HP-9134A,VT420 composite video

[Joe R.]

At 12:27 PM 4/18/05 -0700, you wrote:
>--- "Joe R." <rigdonj at cfl.rr.com> wrote:
>> 9134s with the option (option 100?) to make it look
>> like four floppy diks
>> drives (usually HP 9895s
>
>Well - the unit has two sets of address switches on
>the back, one labeled fixed disc address and one
>labeled flexible disc address. Not that there's a
>flexible drive installed though. Does that flexible
>disc address come in to play if the unit is configured
>as 4 x 1.15MB drives ? Perhaps I need to set that
>address instead.

   The address settings shouldn't make any difference*. The computer should
find the drive and OS no matter where it's located. I don't think the FD
address switchs do anything on your unit. In fact, I'm surprised that
they're even there.  BTW if your drive is configured as four floppy drives
then it should be valuable and VERY desirable to the HP collectors. It's
the only drive that can be used on things like the HP-85 without a special
ROM. In fact, it may require the special ROM and STILL be the only HD that
will work on the 85 and similar systems. Sorry, but I don't remember the
exact details but I looked for one of those drives for years without success.

   *Assuming nothing else is already using that device number but I doubt
it. It's probably the only thing that you have plugged into the HP-IB.


>
>>    That sounds more like the HP HP-IB bus analyzer.
>> Does the panel look
>> like either one of these?
>
>Hmmm- the eBay ones look like real test equipment.
>They have real displays and things. No, the one I got
>looks like two rows each of 8 switches and LEDs
>stuffed into a plastic project box with some dry print
>lettering on the front. Nothing near as nice as the
>ones on eBay. But for $2 it will do a turn. If I had a
>digital camera I'd put up a picture somewhere. Must
>look into that.

  Yes, I'd like to see it. I wonder if it might be someone's homemade bus
analyzer or a prototype.

   Joe

>
>Regards,
>Dave
>
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