[neonixie-l] trigger tube equivilents

2013-06-16 Thread bob harper
doing research on this jukebox pcba couple of questions please..the GR43's the equivalent has been suggested as Z700U by jan wuesten [german supplier i get obsolete stuff from] but looking at the specs for both on[franks electron tube page] there appears to me to differences in the

[neonixie-l] Re: trigger tube equivilents

2013-06-16 Thread threeneurons
Do you happen to have a schematic of that jukebox PCB ? Even though different parts have different specs, might not exclude them. If we can see the circuit its used in, then maybe we can guess at the signal levels, and determine adequate substitutes. On Sunday, June 16, 2013 4:24:24 AM UTC-7,

[neonixie-l] Re: trigger tube equivilents

2013-06-16 Thread Nick
If you need Z700Us and can't find any from Jan etc. let me know - a have a box of them... Nick On Sunday, 16 June 2013 12:24:24 UTC+1, bob harper wrote: doing research on this jukebox pcba couple of questions please..the GR43's the equivalent has been suggested as Z700U by jan wuesten

[neonixie-l] Re: trigger tube equivilents

2013-06-16 Thread Dekatron42
Hi Bob, From the RFT databook och cold cathode tubes I got the information that GR43 is equivalent to GR44, Z70U, Z70W, Z660W and ER33 - possibly with some small changes in component values, but in most cases you can use any of them as a replacement for the other. The ER32 is equivalent to