"Mike Hall" wrote
| "Owain" wrote
| A quick glance at Table 4.7 in Whitfield's electricians guide
| Looks like I might need a copy of this Whitfield's as well as the
| On Site Guide' - or is there really not a lot of difference between
| them?

Whitfield says his book is intended for electricians who have to design
their own circuits, whereas the OSG tends to assume there is an electrical
engineer in the background doing the design work. Whitfield goes in a deep
pocket quite nicely.

Owain