50£ ?!? Glp..
I'll try to look in my garage... I think I have a small variac somewhere..
I'll let you know within the next couple of days..
Dan
(in Denmark)
----- Original Message -----
From: "jb-electronics" <[email protected]>
To: <[email protected]>
Sent: Wednesday, May 16, 2012 10:40 PM
Subject: [neonixie-l] Small variac needed
Hi folks,
I tried the HV setup I wrote about a couple of days ago, and naturally, it
does not work, because the transformers I use are designed for 230V
primary voltage, so they are saturated at around 270V and cannot be used
to obtain 380V AC as planned originally.
However, I now plan to use a variac (230V, 1.6A) and a 230V <-> 400V
transformer (20VA) in series, providing me with up to 400V AC when I
connect the 500V transformer backwards. This is no problem because it is
designed for this voltage.
But the variac - with its 1.6 amps - is still a little too powerful for my
taste. Does anyone of you guys know where to get a small one with 20VA or
so?
The smallest I could find is this one here:
http://www.maplin.co.uk/0.75a-variable-transformer-6476
Thanks,
Jens
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