Technical Details
Brand: Magnecord
Model:728
Category:Mid High Fidelity
Application:Portable
Electronics:Tube
Equalization:NAB
Country of Manufacture:USA
Original Price: $800
Tracks:1/2 Rec/PB
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: Stacked/Inline
# Motors: 3
Auto Reverse?:No
Voltage(s): 110-120v
Outputs: RCA
Frequency Response:30Hz - 18k @ 15 ips +-2dB
Wow and Flutter:.1% @ 15ips
Signal-to-Noise Ratio:55
Sound quality rating:9 / 10
Long-term reliability rating: 8/ 10
Weight: 50
Additional Details
Description
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.
These machines had an optional fourth head, switchable on front panel, for quarter track playback which unfortunately my model does not have. One of the last pictures shows the black faceplate that was an option.
Additional Info
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 / Tube 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