26 Feb
2005
26 Feb
'05
10:20 a.m.
"T" was taken (Transformer). That was also a problem when tubes began being=
=20
used. I think they use X for tubes, don't they?
Normally 'V' Certainly in UK manuals -- we call them 'valves', but HP and
Tekky also use 'V'.
-tony
26 Feb
26 Feb
10:34 p.m.
At 12:20 AM 2/27/05 +0000, Tony wrote:
V is the standard designation for tubes in the US. It has been since at
least WW II.
Joe
>
> "T" was taken (Transformer). That was also a problem when tubes began
being=
=20
used. I think they use X for tubes, don't they?
Normally 'V' Certainly in UK manuals -- we call them 'valves', but HP and
Tekky also use 'V'.
27 Feb
27 Feb
7:42 a.m.
>>>> "Tony" == Tony Duell <ard
at p850ug1.demon.co.uk> writes:
> "T" was taken (Transformer). That was
also a problem when tubes
> began being used. I think they use X for tubes, don't they?
Tony> Normally 'V' Certainly in UK manuals -- we call them 'valves',
Tony> but HP and Tekky also use 'V'.
Tubes are definitely V, in the USA too. X is a quartz crystal.
I'm trying to remember where I saw CR for semiconductor diodes....
paul
8:11 a.m.
Tubes are definitely V, in the USA too. X is a quartz
crystal.
I've seen 'Y' used for crystals too.
I'm trying to remember where I saw CR for semiconductor diodes....
CR (Crystal Rectifier) and MR (Metal Rectifier) were not uncommon for
semiconductor diodes at one time. Solartron certainly used that designation.
-tony
9:12 a.m.
Date: Sun, 27 Feb 2005 16:42:04 -0500
From: Paul Koning <pkoning at equallogic.com>
To: cctalk at classiccmp.org
Subject: Re: Why are transistors called "Q"?
Reply-to: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
>>>> "Tony" == Tony Duell <ard at p850ug1.demon.co.uk> writes:
> "T" was taken (Transformer). That
was also a problem when tubes
> began being used. I think they use X for tubes, don't they?
Tony> Normally 'V' Certainly in UK manuals -- we call them 'valves',
Tony> but HP and Tekky also use 'V'.
Tubes are definitely V, in the USA too. X is a quartz crystal.
I'm trying to remember where I saw CR for semiconductor diodes....
paul
12:15 p.m.
At 04:42 PM 2/27/05 -0500, Paul wrote:
I was told that CR states for Crystal Rectifier and I've seen it used in
a lot of old military electronics.
Joe
>>>> "Tony" == Tony Duell <ard at p850ug1.demon.co.uk> writes:
> "T" was taken (Transformer). That
was also a problem when tubes
> began being used. I think they use X for tubes, don't they?
Tony> Normally 'V' Certainly in UK manuals -- we call them 'valves',
Tony> but HP and Tekky also use 'V'.
Tubes are definitely V, in the USA too. X is a quartz crystal.
I'm trying to remember where I saw CR for semiconductor diodes....
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5 comments
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participants (4)
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ard＠p850ug1.demon.co.uk -
jpero＠sympatico.ca -
pkoning＠equallogic.com -
rigdonj＠cfl.rr.com