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Headrush (or any delay)modification idea??

just an idea but

as far as i know memory chips have a pin which takes the function of
'write enable', 
unless the correct pulse arrives at this pin the contents of the memory
cannot change.
...and thus by stopping the pulse you have frozen the sounds 
... making infinite repeats.

I've seen a circuit that uses this method (from the seventies though).
It used a logic chip to interupt the pulse.

perhaps you could just connect a resistor to hold the pin at the required 
logic level.

can anyone reveal which chips are used in the Headrush so I can examine 

Andy Butler