[Milsurplus] 5V 30A Filament XFMR

[Thomas Adams]

Just an endorsement on that transformer...

I have a couple of them here. It's just what the doctor ordered for a 
4-400A power amp,
and I'm using two of them in series to light the filaments in a twin 
304TL modulator I've
got under construction... and in that application, there's 5 amps of 
extra capacity.

These are getting hard to find at reasonable prices; anyone thinking 
4-400A, 4-250, 304TL,
or any of the big glass 5 volt filament tubes should think hard about 
striking a deal on it.


Mr. T., W9LBB



At 03:37 PM 1/2/2009, H.W.Hall wrote:
>Happy New Year, all!
>I have an old filament transformer here that I can't imagine ever using. I
>would like to know if this would be of use to someone, & what it may be
>worth. It's probably 1950's vintage and was once in a power supply it
>appears.
>
>It is a Chicago Standard Transformer Corp. model P-6468. Primary is 117 or
>107 volts, and secondary is 5.0 volts, center-tapped, at 30 amps.
>Insulation rating on the label says 2500 volts. It weighs 6 pounds. The
>core measures 4 x 3.5 x 1.5 inches. There is some light rust where the old
>paint is missing but it looks like just a little on the surface only.
>Ohmmeter shows proper continuity through the windings but I've no way to
>test the primary-to-secondary insulation.
>
>Pictures of it are posted here:
>http://ourworld.compuserve.com/homepages/hwhall/Fil-Trans.JPG
>
>73,
>Wayne
>WB4OGM
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