Replacing HP 700 terminal CRTs

David Collins davidkcollins2 at
Sun Sep 25 23:35:18 CDT 2016

Apart from the different colors I'd be surprised if all the tubes weren't interchangable between the 700 series. I think the only difference between models is the logic PCA and  ROMs etc.  The 700 series service manual would confirm one way or the other. 

David Collins

(Sent from out of office)

> On 26 Sep. 2016, at 3:08 am, Al Kossow <aek at> wrote:
> I picked up a 700/60, the ANSI version of the HP 700-series terminal and when I took it
> apart to clean, it had a VDC 1401DP31BE inside. I swapped the CRT into a 700/92 which
> has a slightly different board, and a burned in amber tube, and it worked fine.
> Also I noticed the 700/96 PCB is almost identical to the 700/60, so I'll try a
> rom swap to see what happens.
> Too bad there aren't generally available cross reference list for terminal CRTs.
> FWIW, the 700/96 has a Philips M32ECD3G CRT.
> VDC is having a "sale" on the 1401DP4 and P31. The tube price is pretty cheap but the
> shipping is about double when you price it against their normal $55 price. The shipping
> goes down with quantity, so if you buy 5 or so it ends up being about $25 a tube and
> significantly cheaper than all of the ones listed on eBay.

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