(23 Jul 2014, 8:00 pm)Robert wrote Indeed they did. I believe this system remained until the Key Readers were fitted to buses as i seem to remember they changed the 'Go 'n' Save' cards with Buzzfare written on them and the readers worked the same. As with most of my posts, i could be completely wrong.
The old Wayfarer Validators that I think you're referring to didn't offer pay as you go. They just printed and validated multi journey tickets. I think what cbma06 was referring to would have been before that, though I can't remember that far back!