[sdiy] ens 76 eg 1...

[G. Russom]

I built the electronotes eg 1 from ENS 76.  OK... the D, S, and R stages
work properly.  But the Attack stage only works the first time i turn on the
synth... after that it switches to a DSR envelope.  weird...  We are working
with an RS flip flop here built from two crossed NOR gates.  When the
trigger triggers it should send NOR gate A low which in turn send NOR gate B
High and flips the analog switch letting the voltage through the attack pot
and onto the envelope capacitor.  But it only works once or twice.  I'm
using the same signal from an LFO for the TRIG and GATE.  Is this signal too
long for the trigger?  Anybody run into anything like this?