Second repair of Wellbrook ALA1530 Mag Loop Aerial

[Radio Fixer]

I remember that Trevor. In my case both Wellbrook Amps were good until they slowly went down hill.
The design was asking a lot putting 100 mA into a pair of plastic transistors and then encapsulating them.

The design was reversed engineered if you are interested (Chems and X Ray).
https://www.george-smart.co.uk/projects/wellgood_loop/
Gary