Simms Watts Echo Dek - tape loop and S-on-S

Simms Watts Echo Dek with a 'tape loop' conversion instead of the usual cartridge. Completely reversible however... adaptor pulls off and then the cartridge can be fitted in it's place. Tape loop does have advantages - with the repeating Sound-on-Sound function and also new tape loops can be quickly changed - those cartridges can be hard to find...!