HP-25 Co-luminous segments

Threaded Mode | Linear Mode

HP-25 Co-luminous segments

04-09-2022, 09:22 PM

Post: #23

teenix Offline

Senior Member

Posts: 2,040
Joined: May 2016

RE: HP-25 Co-luminous segments

What could be of interest is to show a full display refresh, about 4mS, on the A segment from the ROM0 IC, one with key up and another with key down. Hopefully you can trigger the scope on the RCD pulse to the cathode driver.

cheers

Tony

« Next Oldest | Next Newest »

Messages In This Thread

HP-25 Co-luminous segments - Tom Flatterhand - 04-07-2022, 05:15 AM

RE: HP-25 Co-luminous segments - teenix - 04-07-2022, 06:25 AM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-07-2022, 10:10 AM

RE: HP-25 Co-luminous segments - teenix - 04-07-2022, 11:04 AM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-07-2022, 01:04 PM

RE: HP-25 Co-luminous segments - Maximilian Hohmann - 04-07-2022, 01:20 PM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-07-2022, 03:08 PM

RE: HP-25 Co-luminous segments - Maximilian Hohmann - 04-07-2022, 03:59 PM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-07-2022, 05:47 PM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-07-2022, 08:00 PM

RE: HP-25 Co-luminous segments - teenix - 04-08-2022, 12:01 AM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-08-2022, 05:38 AM

RE: HP-25 Co-luminous segments - teenix - 04-08-2022, 06:35 AM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-08-2022, 06:44 AM

RE: HP-25 Co-luminous segments - teenix - 04-08-2022, 07:12 AM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-08-2022, 07:10 AM

RE: HP-25 Co-luminous segments - teenix - 04-08-2022, 01:11 PM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-08-2022, 11:46 AM

RE: HP-25 Co-luminous segments - teenix - 04-08-2022, 02:38 PM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-08-2022, 03:23 PM

RE: HP-25 Co-luminous segments - teenix - 04-08-2022, 10:50 PM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-09-2022, 06:58 AM

RE: HP-25 Co-luminous segments - teenix - 04-09-2022 09:22 PM

RE: HP-25 Co-luminous segments - teenix - 04-10-2022, 12:23 AM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-11-2022, 03:26 PM

RE: HP-25 Co-luminous segments - teenix - 04-11-2022, 06:40 PM

RE: HP-25 Co-luminous segments - Tom Flatterhand - 04-11-2022, 06:37 PM

User(s) browsing this thread: 1 Guest(s)