[HBR] S-40B's and other tales
Thomas C. Dailey - Dailey Services, LLC
daileyservices at qwest.net
Wed Feb 6 09:55:22 EST 2008
Very Cool. Yes, many of the xfmrs were rated right at the max of their
performance. I sometimes have taken an old tube-socket and replaced 5U4's,
5Y3's, and such with a pair of diodes, BUT - only in stuff where I have a B+
switch (like my HBR-11)... that way, the bottles have a chance to warm up,
before getting hit with the plate voltage... it makes the transformers run
MUCH COOLER, as you're not pulling that high current filament voltage for
the rectifier, anymore.
Yep - Halliscratchers came in all kinds of colors; all close, but not
necessarily the same, as you found out. SimiChrome was "the thing" to
polish up chrome and such on my British cars - works great.
On cutting holes - if you can accurately draw up your layout, WITH accurate
distances and locate the device holes (and types) where you want them, any
CAD operated sheet-metal shop can punch it for you, and it'll look
absolutely professional. Heck, they can even bend up an original, if you
wish.
Tom - Denver
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