V4 - Front-panel LEDs DIALIGHT 551-1301F hard to get
The Front-panel LEDs DIALIGHT 551-1301F are hard to get.
There is one alternative, by a German company called "Mentor", model number 1808.8033 that is a 100% exact replacement for the Dialight 551-1301F, both mechanically and electrically.
As it happens, the CERN store has this Mentor device:
- CERN SCEM code 07.88.10.730.8
Replacement suggested by Dimitris.