[neonixie-l] Re: trigger tube equivilents

Hi Bob, There is a GR43 for sale on Ebay UK here: http://www.ebay.co.uk/itm/GR43-VALVE-SUB-MINIATURE-GAS-TRIGGER-TUBE-CERBERUS-NEW-OLD-STOCK-/251484552167?pt=UK_Sound_Vision_Valves_Vacuum_Tubeshash=item3a8da5bbe7 , maybe that seller has more if you need. I am sorry but I don't understand

[neonixie-l] Re: trigger tube equivilents

hhihhttps://lh3.googleusercontent.com/-97nhgqmMh6s/UzVFZv17YiI/ABM/Bu7tQ9-WTgo/s1600/canteen046-001.jpg hi martin, yes i am watching the GR43 on ebay! yes the 1st tube on the left i was referring to is marked ER32 [sorry thought schematic was posted up] it now has a GR44 installed in

Re: [neonixie-l] Re: trigger tube equivilents

I still haven't looked closely to see what the wiper and track is and where it is on the schematic. That said, my capacitor suggestion wasn't worded that way. I suggest that the capacitor is wired such that one end is to the wiper arm and the other end is to the track that the wiper arm is

[neonixie-l] Electronic Gadgets for the Constructor Bradley 1953

I found this an amusing book to leaf through. Contains a chapter on neon lamp circuits which is my excuse for mentioning it here. About 5MB download. http://www.sgitheach.org.uk/ElectronicGadgets.pdf Enjoy Grahame -- You received this message because you are subscribed to the Google

Re: [neonixie-l] Re: trigger tube equivilents

Thanks for the pic of the wiper. I trust the Electrolube brand products - http://www.electrolube.com/ Others swear by a very expensive American cleaner/lubricator. That one has cheap constituants that are marketed cheaply by others but those brands don't have the 'magic' apparently. The

Re: [neonixie-l] Re: trigger tube equivilents

On 28 Mar 2014, at 15:52, John Rehwinkel wrote: The problem with old SRBP PCB's is that contacts that rotate on them leave a track of dirt which will carry leakage currents. What is SRBP? - John Synthetic resin bonded paper. John -- You received this message because you are

[neonixie-l] Re: trigger tube equivilents

Hi Bob, Thanks for clarifying which trigger tube you meant. Having looked at the circuit and also at the datasheets for the ER32 and GR44 I think that you will have to adjust the value of the 16uF capacitor and the 150k resistor as they are used for the quenching of the trigger tube, however

Re: [neonixie-l] Re: trigger tube equivilents

Hi Bob, Would it be possible for you to use a relay in between the wiper contact and the trigger tube? Maybe the wiper could drive a relay and you then use the relay contacts to drive the trigger tube, just for testing if that will solve the problem. The problem with old SRBP PCB's is that

Re: [neonixie-l] Re: trigger tube equivilents

The problem with old SRBP PCB's is that contacts that rotate on them leave a track of dirt which will carry leakage currents. What is SRBP? - John -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe from this group and stop

Re: [neonixie-l] Re: trigger tube equivilents

On Friday, 28 March 2014 16:30:04 UTC, Nixcited delighted wrote: What is SRBP? Synthetic resin bonded paper. ...aka Paxolin or FR-2 http://en.m.wikipedia.org/wiki/FR-2 Nick -- You received this message because you are subscribed to the Google Groups neonixie-l group. To unsubscribe

Re: [neonixie-l] Electronic Gadgets for the Constructor Bradley 1953

Thank you Grahame. Now your talking! On Friday, March 28, 2014 7:11 AM, Grahame Marsh grahame.ma...@googlemail.com wrote: I found this an amusing book to leaf through.  Contains a chapter on neon lamp circuits which is my excuse for mentioning it here.  About 5MB download.