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From: "Bob Peterson"
Subject: Re: Vaccum Tube
X-Newsreader: Microsoft Outlook Express 5.00.3018.1300
NNTP-Posting-Date: Tue, 26 Nov 2002 18:39:47 GMT
Organization: Insight Broadband
Date: Tue, 26 Nov 2002 18:39:47 GMT
"indago" wrote in message
> On 021125 1457, Bob Peterson wrote:
> > There used to be solid state substitutes for at least some commonly used
> > tubes. But I doubt if they are around anymore, as there just aren't
> > many commonly used vacuum tubes anymore.
> > You could certainly design your own substitute circuits, but I doubt its
> > worth it. I seem to recall running acrossa website somewhere that still
> > sold old vacuum tubes. A google search might be productive if you are
> > looking for a replacement tube to repair an old junker. best bet (in
> > cases) is to send it on to the junk yard and get something more modern.
> > "Tim Heise" wrote in message
> > news:d8vE9.205$Ic4.email@example.com...
> >> Since a tube is a voltage device and a transistor is a current device,
> >> entire circuit would have to be redesigned, or totally conceived anew
> >> scratch. A transistor replacement for a vacuum tube would be a
> >> device consisting of various components to match the transistor to the
> >> design and electical paramaters within the circuit. From an economic
> >> standpoint, such a conversion would not pay profitably.....
> >> Tim H....
> Certainly wouldn't want to throw out a vintage McIntosh stereo amplifier
> with the chrome plated chassis, or some other classic like that. Those
> as pleasant to see working as they were to listen to -- if you were into
> that sort of thing...
I'd be inclined to toss it out if it broke, on the theory that its old
fashioned and takes tubes I can't get anymore to repair it. OTOH-I know
there are people who actually believe tube based amps are somehow "better"
than transsistor based amps. I have my doubts on this, but to each his own.
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