Model:Mk IV tape deck
Country of Manufacture:United Kingdom
Release dates:1957 - 1960
Speeds: 3 3/4, 7 1/2, 15
Max Reel Size("): 7"
Number of heads: 4
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Wow and Flutter:0.1% at 15 ips. 0.12% at 7½ ips. 0.14% at 3¾ ips
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
The Mk IV “Tape Transcriptor” was, by the late 1950s, a very popular unit with enthusiasts and manufacturers.
Many small 1950s tape recorder companies used it in conjunction with their in-house electronics to produce their own integrated tape recorder units, companies such Magnafon, Elizabethan, REPS, Sound, Sovereign, Sonomag
and Wyndsor to name but a few.
Rewind speed: approximately 2 minutes for 2400ft tape / half-track mono