[neonixie-l] Favourite chips...

2014-05-04 Thread Nick
There are so many driver chips available, from the venerable SN74141s and Russian equivalents through the 4017s, 595s SUpertex chips etc. What are people's favourite driver chips (clockable, serial driven) ? Nick -- You received this message because you are subscribed to the Google Groups

[neonixie-l] Re: Favourite chips...

2014-05-04 Thread gregeb...@hotmail.com
Firstly, I only do direct-drive. I dont use driver chips. Instead, I use either NPN or NMOS discrete devices, because I can ensure constant-current thru the cathode. Using a dropping-resistor will result in some current-variation due to the tube's characteristics, or supply voltage variation.

[neonixie-l] Nixie Multimeter Takeda Riken TR6155M

2014-05-04 Thread astroschmidt
Hi folks, At our last local dorkbot-meeting I got a fully working digital multimeter with nixie tubes as display. It's a Takeda Riken TR6155M and calibration still seems to be OK. After cleaning up the front panel it looks like new :-) Does anybody have technical details, service manual or any

Re: [neonixie-l] Nixie Multimeter Takeda Riken TR6155M

2014-05-04 Thread David Forbes
Roger, Congratulations on the test equipment find. Good luck finding data for that unit. It's hard enough to find manuals for the common-as-dirt Fluke Nixie voltmeters. I have a cheesy, c.1972 Leader incandescent 7-segment display voltmeter that turned up at the local surplus place. It