Country of Manufacture:United Kingdom
Release dates:1957 - 1960
Speeds: 3 3/4, 7 1/2, 15
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:( 3 dB): 50Hz - 12kHz at 7½ ips
Wow and Flutter:less than .15% at 7½ ips
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
Like so many small British
manufacturers in the late 1950s, the Maestrovox was constructed around
the Collaro Mk IV
This was a half- track mono machine with a 7″ reel capacity
and three tape speeds:15, 7½ & 3¾ ips.
The Collaro Mk IV was capable of playing in both directions and was fitted
with two motors and two sets of heads for that very purpose.
Record level indication was via magic eye valve, there was
an independent gain control for monitoring and a high impedance output
socket (to CCIR Standards). Mixing of inputs was possible.
Rewind speed: 65 seconds for 1,200ft tape / Audio output power: 3 watts / Speaker(s): 10″ x 6″ internal / Dimensions: 18 x 15½ x 9½ ” (457 x 394 x 241 mm) / Weight: 40 lbs (18.2 kg) / half- track mono