IC's A....B

2 npn transistoren, package SOIC-8
Datenblatt:

Quad Operational Transconductance Amplifiers (OTA) with linearizing diodes
package SSOP24

Quad Operational Transconductance Amplifiers (OTA)
package SOIC-16

NPN Transistor array - SMD variant to the CA3046
package SOIC-14

AS3372E μP Controllable Signal Processor
Features AS3372ED
+ 2-channel VC input mixer with external input
+ 4-pole low pass VCF & [...]

μP CONTROLLABLE SYNTHESIZER VOICE

Complete synthesizer Voice on a Chip
• Sample & Hold buffers on-chip for easy interface to a [...]

Quad voltage exponentially controlled amplifier (VCA)
Package: DIP16

NPN Transistor array
package DIL14

Da

2 Phase clock generator for IC series MN32xx, case DIP8.

Datasheet:

Voltage controlled four-pole filter. The four independent sections can be interconnected to provide a variety of filter responses, such as low-pass, [...]

The AS662 consists of two independent OTAs, each with differential inputs and a push-pull output. Both amplifiers share a common supply but operate [...]

Double voltage controlled state variable filter (SVF). The two independent filters can be connected together to enable a variety of filter functions. [...]