The 'Electrokit' brandname was introduced in around 1975 and lasted until 1992.
Electrokit was manufactured by David J. Reid Ltd, they were distributed by David Reid Electronics Ltd. Currently there are 2 documented models.
Electrokit (or Electro-Kit as they were labeled on some kits) was the kitset brand name for David Reid Electronics. They were popular amongst hobbyists in the 70's and 80's, and I personally recall my Dad buying (and helping me build) the 1 transistor radio kit as a young child.