We are starting to get our lab power packs fail PAT tests. No huge suprise as some are 40 years old.

Replacement options seem limited. Unilab were bought by Philip Harris and Griifin seem to have gone bust.

WE’ve looked at this

http://www.philipharris.co.uk/products/power-supplies/power-supply-units/b8r04366_retro-ranger-psu

Ideally it will have continuously variable voltage, AC or DC and 10A maz current. But I haven’t seen anything beyond 8.5 A

Is anyone using any of this family

http://www.philipharris.co.uk/products/power-supplies/power-supply-units/b8g85471_ranger-power-unit

Are they durable?

The big orange buggers are the most durable.