Category:Super High Fidelity
Country of Manufacture:USA
Original Price: $800
Speeds: 7 1/2, 15
Max Reel Size("): 10.5"
Number of heads: 3
Dimension: 17.5 x 14 x 14"
Head Composition: Permalloy
Head Configuration: Stereo - Stacked
# Motors: 3
Frequency Response:30Hz - 18k @ 15 ips +-2dB
Wow and Flutter:.1% @ 15ips
Sound quality rating:9 / 10
Long-term reliability rating: 8/ 10
A pretty spectacular sounding machine that Anyone considering would best ignore the specifications for frequency response, ff etc. as it sounds way better than many very expensive Japanese machines. Really musical, really dynamic and very small for a 10 inch capacity machine. As you can see in the photos, I added an IEC socket for power and RCA’s for input-output.
Available in two track (728) and quarter-track stereo (748), both versions had the following features:
Monitoring: Phone jack on front panel for head phones.
Approximate dimensions 18 inches wide 14 inches tall 14 inches deep. Weight 50 pounds. rewind/fast-forward 1600 ft./m
Headphone jack, Early remote control option so the 728 can be started and stopped in any mode of operation.
Inputs for high impedance or low impedance microphones x 2
These machines had an optional fourth head, switchable on front panel, for quarter track playback which unfortunately my model does not have.
Heads: Erase head. full track, half track, or split stereo
at customer’s option. Record head and reproduce head. full track, half
track or in-line stereo. (Additional heads were available for quarter
track or special applications.)
Remote control: With single pole/single throw switch installed,
the recorder could be start-stopped in any mode of operation.
INPUT: Two high-impedance microphones (for use with two
250Kohm impedance unbalanced bridge inputs).Two low impedance microphones
(for use with optional input transformers 50Kohm impedances)
Crosstalk: better than 55 db per channel. / Bias frequency: 100 Hz / Valve complement: record: 6AN8 and 12AT7 per channel, playback: 7025 and 12AT7 per channel, bias: 12BH7, solid state power supply diodes / Rewind speed: 1600 feet per minute / Inputs: high & low impedance mics, high impedance balanced & unbalanced bridge / Outputs: cathode follower, 2.5 V & 150 / 600 ohms balanced / Dimensions: 17½ x 13 x 12″ (444.5 x 330 x 305 mm) / Weight: approx 50 lbs (22.7 kg) / half-track or quarter-track stereo