The Ferrograph Series 7
I had one of these when I was in my early twenties. I remember walking home with it, it weighs a ton! Most of the recordings on this site were made on one of these.
3 speeds: 7 & 1/2, 3 & 1/3, 1 & 7/8 ips3 heads: erase, record, playformat: stereo half trackmax spool size: 7 & 1/4 inches
Their first transistor model.
The Ferrograph Series 6
I had one of these before the series 7. Sadly, no recordings survive from this machine. It was 2 track (half track) and battleship green. Very 'clunky' and had valves.