Re: hp 2100A housing wanted
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Agree with Stephen. Note that you’ll need to generate some non-“standard” voltages. HP used CTuL logic devices in numerous places – not TTL. The voltage requirements are +4.5 VDC and -2.0 VDC; not the “modern” +5VDC and zero used with TTL. You might need to build your own switcher for the -2.0 VDC; not sure whether you can reliably tweak a +5 VDC switcher down as far as +4.5 VDC. That’s also a pretty tight space in which to work; the original supply was a jam-packed work of engineering art! You have your work cut out for you in building a replacement power supply.
Of course, if you’re building your own cabinet then you have more “packing options” than the original design. Don’t forget ventilation …
From: VintHPcom@groups.io [mailto:VintHPcom@groups.io] On Behalf Of Stephen Hanselman
Sent: Saturday, February 27, 2021 9:16 PM
Subject: Re: [VintHPcom] hp 2100A housing wanted
Sorry, we sold all our stuff about 6 months ago. But you should look for the 2100 PS, it is a high efficiency SMPS and it fits the housing.
Datagate Systems, LLC
On Feb 27, 2021, at 08:11, ChrisBeee via groups.io <chrisbeee@...> wrote: