Yes, the 2.1 and 2.5 are hard to tell apart. At least yours has the bifurcated centre pin. There are so many brands and variations about you can have trouble with intermittent connection.
A couple of years back I found that the selection at the local parts stores [Jaycar, Altronics,Aztronics etc] along with variations in my kit items could lead to problems. Some types rely on a loose fit of the outer of the plug to the outer of the socket. This is because they do not have a split centre and would otherwise rely on manufacturing tolerances and a 'slant/skew' of the central pin to work at all. They have a spring in the wall of the socket which then pushes the plug sideways to ensure contact at the centre pin. I found that mixing and matching various brands and even eras of the same brand could lead to intermittent operation. Also, one shop mixed up their stock. The design of the 2.1 and 2.5 meant that you could mix them - they fitted but didn't necessarily connect all the time. Beware of rigid, tight fit, non-bifurcated and non-springlined-central-female items - how DO they actually make reliable conact? They are pairs of concentric cylinders with no 'give'. A similar thing happened with 3.5mm audio stereo connectors. Even in the same brand [seemingly] the loose plugs that worked fine with the in-line sockets were somewhat intermittent with the chassis-mounted sockets being sold AND VERY intermittent in the sockets fitted to audio gear. The plugs on purchased audio cables were fine with the equipment [as you would hope] and varied in results with other sockets. John K. ----- Original Message ----- From: Dman777 To: [email protected] Sent: Sunday, July 13, 2014 4:29 PM Subject: Re: [neonixie-l] What type/size of plug for power supply of clock? But I can't tell what size that is...don't they come in different sizes? Thanks, -Darin On Sunday, July 13, 2014 1:30:51 AM UTC-5, Tidak Ada wrote: The connection is clearly visible at the backside of your clock. See pic. eric ---------------------------------------------------------------------------- From: [email protected] [mailto:[email protected]] On Behalf Of Dman777 Sent: zondag 13 juli 2014 2:34 To: [email protected] Subject: [neonixie-l] What type/size of plug for power supply of clock? Hi, I bought my first Nixie clock! http://www.ebay.com/itm/271174922160 I was wondering, what type/size plug do I need for the power supply? I mean the end that plugs into the clock. This is for USA. Thanks, -Darin -- 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 email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/32033843-e32e-4c44-8f50-c33bef34cd23%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/2c4350cf-a9af-4594-902c-505c2b532b83%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/0CE17E4ED63943CDA4C993E9E22479B9%40compunet4f9da9. For more options, visit https://groups.google.com/d/optout.
