WOOOOWWWWW!
Someone give me a towel! Just to keep the drool off my keyboard!
Someday when I grow up and have lots of money I'm gonna have me one of
those!
(Ref: 1924 Grebe Synchrophase below.)
OH YEA! Very Nice.
Could we maybe get more pictures?
Mike Baker K7DD
k7ddmjb@qwest.net
----- Original Message -----
From: "Jim Bryant" <kc5vdj@yahoo.com>
To: <RMead100@aol.com>
Cc: <Amps@contesting.com>
Sent: Wednesday, March 20, 2002 11:47 PM
Subject: Re: [Amps] Terminology Question
> http://community.democrats.com/members/kc5vdj/grebe-05.jpg
> [1924 Grebe Synchrophase]
>
> Ya see, in the early days of radio, electricity was like scarce...
>
> You had your A battery which was usually a tractor battery or
something...Then, you had your B battery/ies you bought at the store
> for the HV lines, in the case of the illustration, Filaments to A, Plates
to B [in this case, 90 volts to all tubes but the second
> from the right [the one in front of the Grid Leak], which gets 45 volts
with a 2.5 meg grid leak [cx-300]. The C voltage was the
> bias, -4.5V in this case... [The other tubes are a mix of C-301's and
UX-201's]
>
> Instead of explain all of this crap to people who could care less, they
simplified it to A, B, and C batteries...
>
> Also, on a side not, if anyone is interested in older radios, I may be
willing to part with some tubes...mainly 201's...some
> NIB...one CeCo A, NIB, with datasheet and blurb about CeCo being the
largest, brass, several other brass 01's, including Cunningham
> NIB...All test above TV-7 ratings... I can take pix of the tubes if
necessary, and I'm definitely not selling them all, I just have
> a storage bill to pay off... Offers?
>
> RMead100@aol.com wrote:
>
> > What is the origin of the B+ term in amp/radio/power supply terminology.
I
> > understand it to be the high voltage supply, but I do not know the
origin of
> > the designation and that has finally bothered me at age 52. It seems to
me
> > the only voltage referred to with this type of shorthand.........i.e. no
A+
> > or -; no B-, no C + or -.
> >
> >
> > R Meadows
> > k8BUX
>
> jim
> --
> ET has one helluva sense of humor!
> He's always anal-probing right-wing schizos!
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