[BC] 110 V DC

[Dennis Cope]

This brings up an interesting point.  In my youth there were a lot of "All
American 5" tube type receivers around with AC-DC  power supplies.

My question is:  Was there anyplace in the U.S. that was served with 110 DC
power?  If so I never heard of it.  If there wasn't then why were so many
radios made with AC/DC power supplies?

Ron D, Salem, OR.


----- Original Message -----
From: "gRAdy Moates" <lists at loudandclean.com>
 >
 >     He absolutely believed that:
 > [1] "Every vacuum tube in the world has 250 Volts on it's anode",
 >               and
 > [2] "There is no such thing as an AC-DC power supply".
 >

A friend once told me many years ago, the DC part had something to do with
Europe, not sure what
but hope it helps jog someone's memory.

And the five tubes filaments wired in series were....  50C5 (7 watts RMS
power beam tube), 12AX7 (dual triode), 35W4? or 35Z5?  Forgot which.
What were the others, it's been a long time...

The local (very old) movie theater uses these three tubes in their very old
RCA sound system (system is very efficient).  It sounds very good.

Dennis