Country of Manufacture:USA
Release dates:1954 - 1957
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:(all 2 dB): 7½ ips: 50Hz - 10kHz
Wow and Flutter:0.3% at 15 ips, 0.4% at 7½ ips
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
A portable, three speed,
(3¾ ips, 7½ and 15 ips) half-track mono recorder with speed
change switch and a four-pole shaded motor.
The mechanical unit (M30-AH) was coupled with the M-30G record/playback
preamplifier to comprise the M30 recorder.
The M33 recorder consisted of the M30-AH mechanical unit coupled with
the M-33G audio amplifier and a 6″ x 9″ oval speaker.
Prices when new (U.S.A.): M30 $299.00, M33 $329.00
Valve complement (M30 G): 12AX7 (pre-amp & AF amp). 12AU7 (AF amp, osc). 6E5 (magic eye) 6E5 (rectifier ) / Rewind speed: 40 seconds for 1200ft / half-track mono