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Show your favorite and most used benchtop PSU

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Rigby:

--- Quote from: madshaman on January 13, 2014, 10:57:21 pm ---Here's the PD supply that sits on top of the other.  Some day I'd like to touch up the paint.



--- End quote ---

If anyone knows a good paint to use to touch these up, please let me know.  I'm gonna scratch out all the paint that is in these little channels now and repaint the entire thing, but I'm not sure what paint to use.  A little voice in my head is screaming "enamel paint" but I don't know if that's right or even what it is.  It's weird how the voices are... :scared:

robrenz:
Make sure you have one that is etched and filled graphics first!  Some are just silk screened paint with no channels. :'(

Rigby:

--- Quote from: robrenz on March 05, 2014, 02:35:01 pm ---Make sure you have one that is etched and filled graphics first!  Some are just silk screened paint with no channels. :'(

--- End quote ---

Mine is definitely etched.  Handy little groove to lay down paint on.  I've had vinyl stencils cut with detail like this, so I could go that route if the stencils weren't available.  I've heard of using stencils as negatives, before, laying down a negative of the pattern you want, then airbrushing in the exposed areas and peeling off the vinyl.  I was going to try that if it wasn't grooved.

electronics technician:

--- Quote from: dimlow on February 18, 2013, 08:30:35 am ---This is the best i can afford, i use the 9V battery when i need a stable supply.

--- End quote ---
thats a big breadboard how much did that cost
btw great psu

MLXXXp:
I suppose I should get something better but I've gotten by so far with these.

Most used:
Elenco XP-655
0-30VDC 0.5A

For higher current or a 2nd supply:
Quick and dirty LM338K
1.3-30VDC 5A(maybe)

For higher voltages:
Heathkit IP-32
0-400VDC 100mA, 0-minus100VDC 1mA, 6.3VAC 4A

For AC:
General Radio Variac type W5
0-130VAC 5A unregulated

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