Mike wrote:
"Andrew Gabriel" wrote in message
...
In article ,
The Natural Philosopher writes:
Hoew about a unijunction with the LED in its collector?
It would be hard (maybe impossible) to get the on-off ratio
50%. Also, the with the output being saw-tooth rather than
square wave in a conventional unijunction oscillator, the
LED would fade off each time. BTW, there's no 'collector'
in a unijunction transistor -- I presume you mean the drain?
(I think it's about 30 years since I last used a UJT,
And that was probably 5-10 years after they stopped making them :-)
I thought that a very short pulse every few seconds was what was required.
Don't use teh gate, use the (drain? No that's a FET surely...)
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