Re: [neonixie-l] IN-13 power supply

Max Di Noi Thu, 21 Nov 2024 07:01:24 -0800

Adrian, shipped it this morning.You should be fine but you may want to 
calculate your power requirement. I haven't checked the datasheet but I believe 
IN-9 are 12mA each and IN-13 4.5mA each, so you need 33mA if you are using 2 
tubes of each. At 140V, that's 4.62 watts.The power supply is 85% to 95% 
efficient, assume 85%, so you need 4.62/0.85 input power, that's 5.45 watts per 
hour. If it's a 12v battery, you need 450mA per hour, if I'm not mistaken... 
450mA x 12 hours, that's 5.4A, assume that your battery is 80% efficient, you 
need 6.7A for 13 hours.Some of the Dewalt batteries can give you that, but also 
you don't want to run a battery below 40%.The power supply should work on a 
lithium battery too. 
-------- Original message --------From: Adrian Godwin <[email protected]> 
Date: 21/11/2024  14:34  (GMT+00:00) To: [email protected] Subject: 
Re: [neonixie-l] IN-13 power supply Thanks, Max, that's pretty compact.I 
haven't thought about battery yet, as I don't know how efficient the converters 
are. I'm looking for max 12 hours runtime, might be able to get away with less. 
On Wed, Nov 20, 2024 at 10:14 PM Max Di Noi <[email protected]> wrote:Hi 
Adrian,What battery are you planning to use? Do you know battery voltage and 
power? So to check that inrush current is not too high for the battery, or 
it'll get damaged in time. I have done plenty of tests for my nixie watch and 
nixie clock power supply. I have this power supply which works extremely well 
and with a battery too. I use it to power 6x Dalibor tubes plus the two Dalibor 
colons nixies. Link below. You are welcome to return it if it doesn't work. It 
will work for your requirements. I'm in the UK. Check out High Voltage DC Power 
Supply Module Suit Nixie Tubes 3.7-15V Input 100-230V Out on 
eBay!https://www.ebay.co.uk/itm/276607450691?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Tfi9UcJ0Sd2&sssrc=2051273&ssuid=Tfi9UcJ0Sd2&var=&widget_ver=artemis&media=EMAIL--------
 Original message --------From: Adrian Godwin <[email protected]> Date: 
20/11/2024  21:57  (GMT+00:00) To: [email protected] Subject: Re: 
[neonixie-l] IN-13 power supply Thanks, that's useful data. I've seen the 
Russian datasheets but not really thought about them yet.I saw there were a 
bunch of options though those specs will narrow it down a bit. But there any 
that are known to be good (or bad) ?On Wed, Nov 20, 2024 at 7:13 PM Mac Doktor 
<[email protected]> wrote:On Nov 19, 2024, at 8:38 AM, 
[email protected] <[email protected]> wrote:I'm looking for a compact, 
efficient, battery-powered supply for  it. I can see several possibles on ebay 
(it can be just the supply, doesn't need to include modulator) but don't know 
how they compare.I'm assuming that the supplies made for el-wire are too low 
voltage and possibly too low current, and I want a nixie supply at 140VDC or 
more. Is that right ?The rated voltage is 140V but I've seen higher. Have you 
seen this?https://threeneurons.wordpress.com/nixie-power-supply/Note the 
current. The IN-13 can be driven with an MPSA42 but an IN-9 will need something 
like an MJE340.As for the HV power supply, there are plenty on eBay but making 
it battery operated may require an extra gadget. They're dime a dozen these 
days.This is off the top of my head. My apologies if you've already gotten this 
far.
Terry Bowman, KA4HJH"The Mac Doctor"https://www.astarcloseup.com"Would you like 
to see the relevant data?"—343 Guilty Spark, Halo 2

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Re: [neonixie-l] IN-13 power supply

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