Sorry about the mess I mailed out earlier. Looks like the programmers here got carried away with the mail editor. ------------------------ Hello fellow analoguers, I received in the mail today a price list and order form from OnChip Systems, makers of Curtis IC's. Here's a listing of what they have available: CEM 3310 Voltage controlled envelope generator CEM 3320 Voltage controlled filter CEM 3328 Four pole low pass VCF CEM 3330 Dual voltage controlled amplifier CEM 3335 Dual voltage controlled amplifier CEM 3340 Voltage controlled oscillator CEM 3350 Dual voltage controlled state variable filter CEM 3360 Dual voltage controlled amplifier CEM 3365 Fast dual DAC multiplier CEM 3371 uP controllable waveform generator CEM 3372 uP controllable signal processor CEM 3374 Dual voltage controlled oscillator CEM 3378 Voltage controlled signal processor CEM 3379 Voltage controlled signal processor CEM 3381 Dual low noise voltage controlled amplifier CEM 3382 Dual low noise voltage controlled amplifier CEM 3387 Low noise voltage controlled signal processor CEM 3389 Voltage controlled signal processor CEM 3391 uP controllable dynamic signal processor CEM 3394 uP controllable synthesizer voice CEM 3396 uP controllable dual waveform converter CEM 5508 Octal sample and hold CEM 5510 Fast octal sample and hold Chips are $15 each, unless you buy huge amounts. Enjoy! -- ms20