Testing a H744 Regulator on The Bench

Vincent Slyngstad vincent.slyngstad at gmail.com
Thu Dec 30 15:55:53 CST 2021

On 12/30/2021 10:08 AM, Rob Jarratt via cctalk wrote:
> Also, the indicator light does not work (as expected). I have seen the
> suggestion to replace it with a CM7381. It looks like these can be sourced
> <https://www.mouser.co.uk/ProductDetail/?qs=N8%2Bk0S5zvCZ7dMEMH2XU9Q%3D%3D>
> with relative ease, but I wondered if there might be a better LED-based
> longer term solution? I was also advised that OL-6003BP is good for the 15V
> regulators, but these seem to be hard to find, any suggestions there?

For the OL-6003BP, the CM7370 will work nicely.  The CM7003 is closer to 
the original specs (before de-rating for voltage), but doesn't last as long.

See the PDP-8/I section of:


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