Control circuit for a Self-Oscillating Power Supply (SOPS)

2 x 12 W hi-fi audio power amplifiers with mute

PAL SIF Converter Circuit for TV and VCR Multi-system

2 x 22 W or 4 x 11 W single-ended car radio power amplifier

2 x 40 W/2 W stereo BTL car radio power amplifier with diagnostic facility