On Saturday 26 December 2009 09:33:19 am cagamba wrote:
LOL! "should, mandatory, absolutely required..."
its like, in the Nixie User's Bible somewhere :)
I see my sin. Would it be overkill to build a variable resistance "box"
(using decade switches) to accomodate the requirements for all the tubes I
have? Or maybe just use a sliding variable resistor ('potenciometer')?
Maybe it's more practical to use just individual resistors, I know.
Not really -- but there's a better way. have on hand a dip-12 socket? Some
assorted resistors? Cool!
Here's how I do it:
(make sure you view things in fixed width :) )
power in Dip12 socket
vcc o-----------[ ~~ ]-.
.-[ ~~ ]-'
`-[ ~~ ]-.
.-[ ~~ ]-'
`-[ ~~ ]-.
.-[ ~~ ]-'
`-[ ~~ ]-.
.-[ ~~ ]-'
`-[ ~~ ]-.
.-[ ~~ ]-'
`-[ ~~ ]-.
-[ ~~ ]-'
Simply shove the appropriate resistors into it (You dont /have/ to use a
DIP12, a DIP8 or some such works fine too) and use the next down hole. $1 in
parts.
As well, a potentiometer would be fine too -- something like a 30k +/- 40%
would do the trick:
12K Resistor
vcc o--~~~--.
==[]---+------o vout
`--/
(a little better is to use the grounding line from the pot down to your ground
like so)
12K resistor
vcc o----~~~-.
[]-----o nixie HV
gnd o--------+------o nixie ground
If you look hard enough he also has some assorted and sundry computer stuff
(including some old FPSs) Neat stuff.
Morgan Gangwere
"The future is here, its just not evenly distributed yet!"
-- William Gibson
"When in doubt, walk up to the offending machine and state Ohms
law: 'v=ir..v=ir'. then hit it. hard. they can smell fear."
(Unknown, presumed from The devil's DP dictionary)
