RE: [neonixie-l] Re: b7971 segment current

Greg – my 1971 clock with Burroughs CK8754 nixie tubes ran 27/7/365 for over 35 years with no tube or digit failures. It used 74141 drivers driven at ~170 volts by a rectified line voltage doubler circuit using recommended anode resistors from the example circuits out of the Texas Instruments d

Re: [neonixie-l] Help with IN-8 tube mount for Threeneuron's 6 digit clock

Skewed in one direction means they were pulled out at an angle and this can lead to seal damage. Without a tube straightner you can gently straighten them with flat jawed needle pliers by applying as little force as possible to get them perpendicular again. I have done this without causing any

Re: [neonixie-l] Help with IN-8 tube mount for Threeneuron's 6 digit clock

I forgot to add this as a method of stacking the neons - this is on a PV Electronics board for 1040s, Z566s etc -- You received this message be

Re: [neonixie-l] Help with IN-8 tube mount for Threeneuron's 6 digit clock

Roddy, I will try that for pin straightening. I like the plexiglass, so the idea is that holds the sockets tightly closed? -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an e

Re: [neonixie-l] Help with IN-8 tube mount for Threeneuron's 6 digit clock

Hi Jason, the sockets are held tight as you say by this method. Have a look at the Assembly instructions for the Spectrum kit from PV Electronics for details. On Wednesday, August 24, 2016 at 3:41:49 PM UTC+1, Jason Perez wrote: > >

Re: [neonixie-l] Re: Maybe a stupid question...

Now I'm trying to figure out why the VCO I just built functions in reverse. Positive CV input yields only horrible noise yet a negative voltage of 0 to -12 creates a robust sounding sawtooth wave. I would have thought it the other way around. Checked the connections dozens of times, re-checked the