USED UNIT, SERVICED AND IN WORKING CONDITION


In the early '60s, before Japan had established itself as the electronics juggernaut it would become, Akai introduced "Roberts" – rebadged Akai gear designed to appeal to Americans. The 770 was one of the first, essentially an Akai M-7 with cross-field heads. While the Roberts 770X is fairly common, the early 770 with built-in tube amp is a fairly obscure 4-track deck. 


Factory Specs

Type  4-track, 2-channel, stereo/monaural open reel tape system

Heads  1 x record/playback, 1 x bias, 1 x erase

Motor  2 speed hysteresis synchronous

Reel size  up to 7 inch reel

Tape speeds  1 7⁄8 3 3⁄4 7 1⁄2 ips

Wow and flutter  0.15% (7 1⁄2 ips)

Frequency response  40Hz to 23kHz (7 1⁄2 ips)

Signal to Noise Ratio  40dB

Total harmonic distortion  3%

Crosstalk  53dB

Output  800V (line)

Speakers  5 x 7" oval

Valve complement  2x EF86, 2x 12AD7, 2x 6BQ5, 2x 6X4, 1x 6AR5

Dimensions  20.08" x 13.39" x 8.90"

Weight  47.40 lbs.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.

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Listed4 months ago
ConditionGood (Used)
Good condition items function properly but may exhibit some wear and tear.Learn more
Brand
Model
  • 770
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Teletech Pro Audio

Markham, Canada
Joined Reverb:2016

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