Replacement for TCA280A

The "Computer-controlled slide fader" we published in 1988 (Ref. 1) was based on dimmer chip Type TCA280A. In spite of this device being a Philips Components preferred product at the time, it proved difficult to obtain for many readers. When approached, Philips Components admitted that they had taken the TCA280A out of production without prior warning, and that no pin-compatible replacement was available.