Stereo Cassette Deck with Dolby Noise Reduction and APFS system
Sharp's newly developed unique Auto Program Find System.
Sharp's developed unique APFS finds the cue of every musical selection (non0signal part) on a music recorded tape. When the fast forward button is pushed while operating with the APFS switch ON, the tape stops at the beginning of the next musical selection automatically. When the rewind button is pushed while operating with the APFS switch ON, the tape returns to the beginning of the music and stops automatically. The APFS is ideal for the following purposes: When you want to select only a desired selection of music on a recorded music tape; When you want to select the next musical selection during playback; When you want to repeat the same music..
Ultra-hard, High-quality MCF head
Long-life with excellent durability against abrasion is assured through employment of a strictly selected high density ferrite head; keeps efficiency semipermanently without deteriorating characteristics during long periods of use. Ideal shape and mirror finishing produced by a unique polishing technique assure extra smooth head surface. Produces steady high range characteristics, non-fluctuating low range characteristics and wide dynamic sound range. Also assures recording and playback with high grade sounf quality. Moreover shuts out external induction thanks to front shield structure.
Automatic changeover system for detecting CrO₂ tape
When a CrO₂ tape with additional sensing holes situated next to the breakout lug holes is inserted into the cassette chamber. Bias and Equalizer can be set automatically to the correct characteristics in recording and playback mode. Therefore, no manual operation of the CrO₂ tape selector switch is required. When using CrO₂ tapes of the old standard type, the CrO₂ tape selector must be used.
Dolby Noise Reduction System
The Dolby NR system is employed in the RT-3500C for reducing hiss noise. The noise reduction effect of the Dolby system, for example, is 10 dB at around 10 kHz. So annoying hiss noise doea not affect listening enjoyment. Thus, the Dolby system not only improves Signal-to-Noise Ratio , but correct cross modulating distortion remarkably, and assures unsurpassed quality stereo sound reproduction.
DC Servo Motor for Stable Rotation
The DC Servo Motor is employed for stable rotation in the unit. Assures recording and playback enjoyment without worrying about noise caused by vibration. Wow and Flutter and Power consumption are also reduced.
Specifications
Type: AC operated Solid-State, 4-track, 2-channel Stereo Cassette Tape Deck with built-in Dolby Noise Reduction System and APFS (Auto Program Find System)
Tape Speed: 1-7/8 ips
Track: 4-track2-channel stereo
Motor: DC servo motor
Heads:
Record/Playback : MCF - Microcrystaline Ferrite head
Erase : Ferrite head
APFS : Sensing head
Input jack:
Microphone : 0,1 mV/500 Ω
Line (Two) : 50 mV/85 k Ω
Output jacK
Line (Two) : 410 mV (0 VU)/50 k Ω
Headphones : 1 mV (0 VU)/8 Ω
Bias System: AC bias
Erase System: AC erase
Bias Frequency: 84 kHz
Level Indication: VU meter , LED 2-colored LED peak level indicator
Wow and Flutter: 0,13% WRMS
F.F. and Rewind Time: 75 sec for C-60 cassette
Frequency Response:
CrO₂ Tape : 45 - 15,000 Hz ±3 dB
Normal tape : 45 - 13,000 Hz ±3 dB
Signal-to-Noise Ratio
58 dB (Dolby noise reduction "ON")
52 dB (Dolby noise reduction "OFF")
Distortion: 1,5% at 0 VU
Semiconductors: 4 ICs; 6 Transistors plus 21 Aux transistors; 41 Diodes, 1 LED, 1 SCR
Power Source: AC 120 V, 60 Hz
Power Consumption: 18 W
Dimensions (W x H x D): 16-7/8" x 4-1/2" x 10-9/16"
Weight : 12 lbs