Re: [neonixie-l] Removing lettering from Russian TH4B tubes

2021-01-05 Thread Yohan Park
Oops, I think I got that backwards, should be the anode (pin 1) and the second grid (pin 2) On Wednesday, January 6, 2021 at 2:04:07 AM UTC+1 Yohan Park wrote: > Yeah I really like them and they're (still) cheap. > No luckily it doesn't need 400V, it needs 150V DC. I was driving the one > in th

Re: [neonixie-l] Removing lettering from Russian TH4B tubes

2021-01-06 Thread Ryan B
Found this too. [image: 20210106_062103.jpg] On Tuesday, January 5, 2021 at 5:11:29 PM UTC-8 w...@kitsunegari.net wrote: > Oops, I think I got that backwards, should be the anode (pin 1) and the > second grid (pin 2) > > On Wednesday, January 6, 2021 at 2:04:07 AM UTC+1 Yohan Park wrote: > >> Ye

Re: [neonixie-l] Removing lettering from Russian TH4B tubes

2021-01-06 Thread Yohan Park
IPA (which I was referring to as alcohol): nope Dichloromethane: I've got quite a bunch of chemicals lying around but unfortunately not that Paint thinner: Yes! I let it sit in a test tube with Naphtha for a while and everything rubs right off! Thanks. On Wednesday, January 6, 2021 at 1:20:51 AM

Re: [neonixie-l] Removing lettering from Russian TH4B tubes

2021-01-06 Thread Nicholas Stock
Excellent! I'm blessed with access to solvents as I'm a chemist by trade :) On Wed, Jan 6, 2021 at 5:16 PM Yohan Park wrote: > IPA (which I was referring to as alcohol): nope > Dichloromethane: I've got quite a bunch of chemicals lying around but > unfortunately not that > Paint thinner: Ye

Re: [neonixie-l] Removing lettering from Russian TH4B tubes

2021-01-06 Thread Yohan Park
Every job comes with its benefits. I wish I had more jobs ;) Nice to know you're into chemistry. Always nice to know which people are into what. On Thursday, January 7, 2021 at 2:18:10 AM UTC+1 Pramanicin wrote: > Excellent! > > I'm blessed with access to solvents as I'm a chemist by trade :