Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-05-15 Thread Kiran Otter
message From: Kiran Otter kiran...@gmail.com javascript: Date: 05/14/2015 8:30 PM (GMT-06:00) To: neoni...@googlegroups.com javascript: Subject: [neonixie-l] Re: Need help with a tubehobby clock overheating Well after MUCH trials and tribulations.. I gave up. :) I lack

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-04-20 Thread gregebert
Since I'm picky stubborn, I do my own designs. That way I can only blame myself. Snarkiness aside, making a production-worthy design is not trivial and I'm sure that the few kits that are available are designed by engineers who have day-jobs as well. On top of that, kits need to be affordable,

RE: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-04-20 Thread Jeff Walton
! Jeff Walton -Original Message- From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of Dan Hollis Sent: Monday, April 20, 2015 2:50 PM To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l] Re: Need help with a tubehobby clock overheating So

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-04-12 Thread Charles MacDonald
On 15-04-12 10:53 AM, Kiran Otter wrote: I can't find the 2SA1266 transistor. Tried a cross-ref site and it gave me 213 choices. x.x http://www.futurlec.com/Transistors/2SA1266pr.shtml It is a Japanese type. but their are probably hundreds that would work... use the specs in the link above

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-04-12 Thread Nicholas Stock
Kiran, PM me...I have all the parts you need and can send them to you for the price of postage only. Cheers, Nick Sent from my iPhone On Apr 12, 2015, at 07:53, Kiran Otter kiranot...@gmail.com wrote: Ok, I need some help to know which parts to order.. The inductor; I know it's

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-04-11 Thread Sture Nystrom
A faulty inductor with some windings short cuted will make switching transistor go hot. Kiran Otter skrev den 2015-04-10 17:12: Well.. I replaced the voltage regulator with JT's part, it appears to be working perfectly.. a solid 5V right on the mark. I also replaced C1. The ghosting numbers

RE: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-04-04 Thread Jeff Walton
solution when there is a small power budget. Jeff Walton From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of Kiran Otter Sent: Saturday, April 04, 2015 1:52 PM To: neonixie-l@googlegroups.com Subject: [neonixie-l] Re: Need help with a tubehobby clock

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-30 Thread Nick de Smith
I suspect they will solve the problem but at considerably more cost than two small capacitors which should have been there in the first place. ... Nick On 30 March 2015 12:47:54 GMT+01:00, Kiran Otter kiranot...@gmail.com wrote: Nick, Would replacing the 7805 with a 'non-isolated dc/dc

RE: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-29 Thread Jeff Walton
Of Kiran Otter Sent: Sunday, March 29, 2015 12:56 PM To: neonixie-l@googlegroups.com Subject: [neonixie-l] Re: Need help with a tubehobby clock overheating Something I want to note about how I used a heatsink; I epoxied it to the tops of the cases of M1 U1; traditionally you'd bolt

RE: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-29 Thread Jeff Walton
will accelerate the dryout of any nearby electrolytic caps. Jeff Walton From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of Kiran Otter Sent: Sunday, March 29, 2015 12:56 PM To: neonixie-l@googlegroups.com Subject: [neonixie-l] Re: Need help with a tubehobby clock

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-28 Thread JohnK
the coupling effect. [And the rail is effectively grounded.] John K/ - Original Message - From: Kiran Otter To: neonixie-l@googlegroups.com Sent: Sunday, March 29, 2015 8:53 AM Subject: [neonixie-l] Re: Need help with a tubehobby clock overheating Niek, Yes, it's showing

RE: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-28 Thread Jeff Walton
] On Behalf Of Kiran Otter Sent: Saturday, March 28, 2015 12:51 PM To: neonixie-l@googlegroups.com Subject: [neonixie-l] Re: Need help with a tubehobby clock overheating By the way, I'm open to recommendations on a different clock kit that will use my IN-18s. I haven't had much luck finding another

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-28 Thread Dan Hollis
On Sat, 28 Mar 2015, Terry Kennedy wrote: On Saturday, March 28, 2015 at 7:55:48 AM UTC-4, Kiran Otter wrote: Recently, I started to notice that other digits in the tubes were partially lighting up, and eventually the fuse blew. My assumption was that the K155ID1 drivers had started to go, so

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-28 Thread Nicholas Stock
Could you have a faulty DS1307? Would that cause a timing issue? Nick Sent from my iPhone On Mar 28, 2015, at 15:23, Kiran Otter kiranot...@gmail.com wrote: Niek, Yes, it's showing the seconds in the hour digit, and in the minutes digit.. though not as strongly. If I force it to

Re: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-28 Thread JohnK
@googlegroups.com Sent: Sunday, March 29, 2015 2:44 AM Subject: [neonixie-l] Re: Need help with a tubehobby clock overheating The voltage from the wallwart (12V, 1A) is 11.8V under load. The high voltage to the tubes is 172.8V. It's very difficult to get it right at 170V when adjusting R26

RE: [neonixie-l] Re: Need help with a tubehobby clock overheating

2015-03-28 Thread Jeff Walton
@googlegroups.com /divdivCc: /divdivSubject: [neonixie-l] Re: Need help with a tubehobby clock overheating /divdiv /divBy the way, I'm open to recommendations on a different clock kit that will use my IN-18s. I haven't had much luck finding another make. Kiran -- You received this message because you