HP-25 Co-luminous segments
|
04-11-2022, 06:40 PM
Post: #27
|
|||
|
|||
RE: HP-25 Co-luminous segments
(04-11-2022 03:26 PM)Tom Flatterhand Wrote: Today I tried it again. However, the HP-25 hung up every time I connected the test lead to pin 7 of the ACT. I have seen that happen also, but only seems to happen when I use a bench power supply with the scope. I have a small voltage selectable wall wart too and the same can happen. There seems to be an interaction between my scope and a mains operated supply which I thought both would be isolated from each other. This may stop if you have a 2.5V battery source for the power. cheers Tony |
|||
« Next Oldest | Next Newest »
|
User(s) browsing this thread: 1 Guest(s)