Content-Transfer-Encoding: base64Hi Peter,
Yes, though they are a rare animal indeed, there
were a few 120 mA gas discharge ballast
transformers out there, and I believe they were
available in the typical NST voltage ranges (6,
7.5, 9, 12, and yes 15 kV.) Come to think of it,
I can?t recall ever actually seeing one in
person myself, just pictures. Don?t know if they
even manufacture these type of transformers any
more? Seems like IIRC, they were referred to as
?cold cathode? transformers. Besides possible
bombarder duty in neon sign fabrication shops,
these beasts would have probably only seen use
in the field in Arctic climates, where subzero
ambient temperatures would impede the noble
gases from ionizing as readily, thus requiring
more startup current. I seem to recall even
seeing a 240 mA! NST, (but only 7500 volts) on
eBay once. Many neon type signs are beginning to
be replaced by LED based signs and the few that
still utilize the ionization of rarified noble
gases to obtain their luminosity use those small
inverter transformers instead of the old iron
core style, which are unfortunately useless for coiling.
I would be willing to wager that if you could
even find one, it would likely cost you
considerably more than a decent 10 or 15 kVA rated pole pig.
Another David
Sent from my iPhone
> On Apr 27, 2018, at 5:00 PM, Peter Komen <flyin.low@xxxxxxxxxxxÜ?ÝN??
]?Y? ?$?¡?Ù????Ì?ѽɽ¥??$?Ý?Ì??½¥¹??Ѽ???Ù?ÉÐise
on here. 30" x 12" x 9". 30"
\?ÙHX[Y]\?L??inside diameter, and 9" for torus diameter. Anyhow I
> was thinking $400. I'll ship. It is in a double box and almost ready to
ÛË?Y?[ÝH\?H[?\?\ÝYHØ[?ZÙ@ some pictures. I bought this in a
> group buy long ago and haven't used it much.
??wfRæWfW"6VVâV·bÂ0ma NST.
>
> Pete Komen
>
> -----Original Message-----
> From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of David
> Sent: Friday, April 27, 2018 6:21 AM
> To: tesla@xxxxxxxxxx
> Subject: [TCML] WTB - Lg Torid / Lg NST
>
> Hello everyone - Since we seem to be in swap meet mode, I've been
> looking for a couple of items.
> _
> 1) Looking for a 30 inch spun aluminum toroid_ I've been using a 20 inch
]HÛÝ??ÛH?ÜÜÈXØY\ÈYÛÈ?]HÚould be using at least a 30
>
> 2) _Maybe the large 15kv - 120ma NST_, I know those NST's are hard to
?[??] if one were to surface at a reasonable price I'd be very
[\Y?H[?XYH]?HÛ?HÙ?\ÙH?Y?Þ\È[?IÝ?e always wanted to
\ÙHÛÈÚ]ÙXÛÛ?\?IÜÈ[?\?[@l and primary's in series for 240
?ÛÜ\?][Û??? Thanks
]?Y???ÚÙ\Ý?[K?\?Ú[?XK\ØB?õõõõõõõõõõð____________________________________
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