16 years ago
I have a Keithley digital microvoltmeter which has a fault in one of its red
LED display digits. The part is a Fairchild FND561 which is no longer
available. I am having trouble finding a replacement and would appreciate
any suggestions in finding an equivalent, though I'd reckon siomething
should be available.
The display is the leading digit which displayes +/- 1. It is a 13mm DIP
As it has both the 1 and the sign of the signal, its absence makes the meter
of limited use!
Any suggestions greatly appreciated.