On 2018-Sep-03, at 8:39 AM, jos via cctalk wrote:
> the following late fifties HP equipment is available in Switzerland.
> Stored in less than ideal conditions, but seem otherwise quite OK.
> 
> Feel free to forward to more fitting mailing list / fora.
> 
> Not my equipment, my only interest in this is saving these from the scrapheap.
> 
> 
> HEWLETT PACKARD TIME INTERVAL UNIT 526B
> HEWLETT PACKARD ELECTRONIC COUNTER 524C
> HEWLETT PACKARD DIGITAL RECORDER 560A
> 
> ( Possibly a second HP524(b) , unsure of this )
> 
> I will forward email adresses tio the seller, up to you to complete.
> He expects to raise some money, unsure if realistic or not.



I think I've made this comment before when this type of equipment has been 
mentioned on the list,
but as it's being mentioned again:

The 524C is a tube-based NIXIE-display digital frequency/period/event counter,
the 526B is a plug-in input module for the 524,
and IIRC the 560 is a printing recorder for use with the 524.

        http://madrona.ca/e/edte/HP524C/index.html
        http://madrona.ca/e/edte/HP520/index.html

In my opinion, it's a reasonable acquisition for a computer museum as an 
example of
tube-based digital technology from which the 1st generation of computers were 
built
(seeing as how tube-based computers are a tad difficult to come by these days).

If you're an HP collector, the 520 series was HP's first step into digital 
technology.

Reply via email to