Subject: Re: Vaccum Tube
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Date: Tue, 26 Nov 2002 16:28:54 GMT
NNTP-Posting-Date: Tue, 26 Nov 2002 08:28:54 PST
Organization: EarthLink Inc. -- http://www.EarthLink.net
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 that
> 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 most
> cases) is to send it on to the junk yard and get something more modern.
> "Tim Heise" wrote in message
>> Since a tube is a voltage device and a transistor is a current device, the
>> entire circuit would have to be redesigned, or totally conceived anew from
>> scratch. A transistor replacement for a vacuum tube would be a complete
>> 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 were
as pleasant to see working as they were to listen to -- if you were into
that sort of thing...