When is a transistor not a.............

[Rob Brzykcy]

Actually, this is one of my reasons that the 303 filter sounds so different from
all others.. simply replacing them with diodes changes the sound somewhat. I tried
it before due to some curiousity between it and its cousin the EMS.
Rob

Dr S Grainger wrote:

> Dear All,
>
>         Adding my 10p (not on Euros yet !!) to the diode-connected
>         transistor debate the essence seems to be feedback.
>
>         With the base-collector connection made there is a pretty
>         solid feedback path (the shunt resistor value = 0) This has the
>         effect of producing a 'diode' with a wider dynamic range than
>         a 2-terminal device. Also to reduce the resultant circuit's dependance
>         on the device parameters
>
>         I wonder also if it improves the noise performance ?
>
>         Steve G