Can anyone help me about LED displays please.....

[FilipB]

Sorry to post again but I really would like to use the display mentioned in
https://www.electro-tech-online.com/threads/private-telephone-system.4479/ he is connected to a chip NEC D116311GC - 9933XM008 and powered with 3.5V
its a 38 pin power source to pin 1&2 and pin 37&38

I did found alot about LCD's but nothing about led displays

PLEASE EVERY TIP IS WELCOM

See picture below


**broken link removed**

 

[Sebi]

Hey Filip,

this is not a LED display. This is a vacuum-fluorescent type (sometimes called Batron) Need a heating voltage 1,5V and anode voltage about 50V DC. The driver chip designed direct for this arrangemet, but not impossible driving with discretes. You need couple of transistors, and some reverse engineering to discover the pinout.

 

[Rescyou]

Schematic

Without a schematic it will probably be impossible to assist you and I assume that is why you have not got any responses.

It is like showing a blind man an engine and pointing out the carburator and asking him how to make it run.

Resc.