Model:Stereo 77 & Stereo 88
Country of Manufacture:United Kingdom
Release dates: -
Speeds: 3 3/4, 7 1/2, 15
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Stereo
# Motors: 3
Frequency Response:7½ ips: 50Hz -10kHz ±2db; 15ips: 40Hz - 15KHz ±2db
Wow and Flutter:less than 0,2% at 7½ ips
Signal-to-Noise Ratio:from 200Hz to 12kHz better than 50db
Sound quality rating:9 / 10
Long-term reliability rating: 5 / 10
The Stereo 77 was a mono recorder with stereo playback capabilities (for replaying pre-recorded stereo tapes). It had two speeds – 3¾ and 7½ ips. In line with all Ferrographs of the day, it could handle reels of up to 8¼ inches diameter.
The Model 88 was identical except that it could record AND play in stereo and had speeds of 7½ and 15ips.
Both machines were decks only, with no internal power amplifiers or speakers. They were priced at £103 and £110 respectively.