Wow. Beautiful nixie counter, and 10MHz with tubes to boot! Impressive. The kind of stuff that made HP famous. Marc
> On Sep 3, 2018, at 12:34 PM, Brent Hilpert via cctalk <cctalk@classiccmp.org> > wrote: > >> 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. >
