In a message dated 01-02-09 16:35:20 EST, you write:
<<
I've been thinking I might build one up. Seems to me all you need are
some analog gates and comparators to control them.
>>
send me your address and i can send you a schematic. it is quite a simple
module to build and would be worth checking out. serge sent me a copy years
ago after he stopped making them.
best,
dave