ERRATA: 240V Power Relay (Jan 92): ------------------------- When using this unit with a 'master' appliance that draws a small standby current, the circuit can be turned partially on if sensitivity resistor R2 is of an unsuitable value - as detailed in the March '92 errata. If this is the case, the 'slave' 240V outlet may produce a chopped<$> waveform much like that from a conventional light dimmer when adjusted to a low setting, which in turn can distress and even damage some appliance power transformers. In the light of this potential for damage, we unfortunately must recommend that constructors do not build or use this project.