Ballast tubes usually are glass. I have a few metal ones but at least one
of them isn't even a ballast, just a plug-in resistor.

--
Jim Mueller

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"Dave McMullen" wrote in message
. ..
I don't see any "ballast" tubes, just regular glass tubes


"Dave" wrote in message
...
Can anyone identify this radio. It has 12 tubes of which half are
ballast tubes to jack up the tube count. No identifiable markings that I
can see.

Thanks,

Dave