[sdiy] Equiv of LM3900?

[pfperry at melbpc.org.au]

"Synth-DIY" <xinclxsynth-diy at mkv.mh.se> wrote:
> What would be a good replacement of a LM3900, which seems less than easy to get were I am?
> Any quadrule opamp like a TL074?
.no, the LM3900 is a completely different type, it is a Norton (or 'current differencing') amplifier.
The industrila rated version LM2900 is easier to get, sometimes.
> 
paul perry (Frostwave analog fx) Melbourne Australia
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