Category:Mid High Fidelity (most Japanese recorders fall into this category)
Country of Manufacture:USA
Release dates:1969 - 1972
Speeds: 1 7/8, 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Stereo
Frequency Response:(all 3 dB): 7½ ips: 30Hz -18kHz
Wow and Flutter:(less than) 0.18% at 7½
Signal-to-Noise Ratio:better than 50dB
Sound quality rating:6 / 10
Long-term reliability rating: 6 / 10
A slightly more sophisticated version of the RK 825, this quarter-track stereo machine featured three speeds (7½ , 3¾ & 1 7/8 ips) with automatic equalization, tape lifters, sound with sound, a 5-mode
single tape function lever, twin VU meters, single 4-pole induction motor, 7″ reel capacity and a laminated combined record/playback head.
In addition it had a magnetic phono input for recording direct from a turntable and individual controls for left and right channels. Two 5″ full-range speakers were driven by a solid state 8 watt amplifier.
Crosstalk: better than 60dB / Equalisation: NAB standard / Bias frequency: 105kHz / Semi-conductors: 12 transistors, 4 diodes / Inputs: microphone: 0.15mV for 0VU, 600 ohms, auxiliary: (low) 100mV (high) 500mV magnetic phono: 0.7mV / Outputs: external amp: 1V to 2.5V (variable) stereo headphones, extension speakers(8 ohms) / Power output: 8 watts (maximum) / Speaker(s): two 5″ speakers / Dimensions: 15¾ x 14 x 7¾ ” (400 x 356 x 194mm) / Weight: 27 lbs (12.3 kg) / quarter-track stereo