Wasp amps were built in New Zealand and Australia. For the full story including a communication fromIan Johnstone, founder of WASP in 1967 see Ozvalveamps

The Saints guitarist Ed Kuepper used a WASP amp with EDA speaker cabs live in 1977 as seen on a film clip on ABC Rage program.

One amp I saw on ebay had the following inscription on the back “Manufactured by Wasp Ind Pty Ltd under license to holden consolidated ltd New Zealand.

Reviews are at Harmony Central

Images eBayWasp Industries Holden Industries Graphic Amplifier Wasp -  Holden Industries logo Wasp Industries Holden Industries Amplifier label