Country of Manufacture:United Kingdom
Release dates:1956 - 1959
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Stereo
Wow and Flutter:
Sound quality rating:6 / 10
Long-term reliability rating: 6 / 10
The Stereo Add-on was an early attempt by Ferrograph to provide a stereo replay unit.
This additional amplifier could be attached to the standard Series 3 recorder. It required the user to fit a Stereo replay head in the dummy head position, and then allowed replay of commercially
available reel to reel pre-recorded tapes.
Whilst not the most elegant of solutions, it was one that many other manufacturers also used, including Tandberg, and Simon.
(information courtesy of George West)
Specifications same as Series 3.