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SONY TC-645
THREE MOTOR, THREE HEAD
STEREO TAPE DECK

You'll have top quality performance, elbow room and money left over when you add a SONY TC-645 to your audio system.
Two separate Ferrite and Ferrite playback and record heads, plus one ferrite erase head, assure long term high-quality performance. They last up to 200 times longer than standard perrnalloy heads, and provide wider frequency response, better tape-to-head contact, and less distortion and noise.
The separate record and playback heads of the TC-645 mean you get the added advantage of Tape/Source Monitoring. You can check the quality of your recording as you make it.
One motor for the capstan and two separate motors for reel drive assure accurate, stable tape movement for reduced wow and flutter. In addition, the 3-Motor System offers a simplified mechanism, which keeps mechanical wear to a minimum.
Exclusive SONY Symphase Recording lets you record 4-channel sound from any SQ* or FM matrix source. When played back through four speakers and an amplifier equipped with a 4-channel decoder, it'll give you all the exciting dimensional aspects of a live performance.
At end-of-tape in any mode, Automatic Total Mechanism Shut-Off returns all functions to the stop position. Possible damage to tape is prevented, and there's less mechanism wear even when you leave the tape deck unattended.
The Record Equalization and Bias Selector Buttons let you get the best possible recording from either standard or low noise/high output tape. And Built-In Mic/Line Mixing lets you mix and record through the line inputs and mic inputs simultaneously. For ease and accuracy in setting levels, there are Two Illuminated VU Meters calibrated to NAB standards.
Included here are just a few of the most impressive features. There are others, all adding up to make an outstanding value in the tape industry. The SONY TC-645-Long on looks and performance, short on size and price tag.
*TM CBS Labs
FEATURES:
· Quarter-Track Stereo Record & Playback
· Three Heads for Tape/Source Monitoring
· Solenoid-Operated Three-Motor Transport
· Pause Control with Lock
· Electrical Speed Change
· Automatic Tape Lifters
· Scrape Flutter Filter
· Ultra High Frequency Bias
· Built-In Reel Locks
· Microphone and Auxiliary Inputs
· Microphone/Line Mixing
· Playback Level Control
· Large, Illuminated VU Meters, calibrated to NAB Standards
· Non -Magnetizing Record Head
· Record Equalization Selector Switch allows optimum performance with either standard tape or Sony low-noise, high-output tape
· Retractomatic Pinch Roller
· 4-Digit Tape Counter
· Vertical/Horizontal Operation
· Stereo Headphone Jack
· Walnut Base
· No Pressure Pads
SUPPLIED ACCESSORIES:
· RK-74 Patch Cords X 2
· Empty 7-Inch Reel
SUGGESTED ACCESSORIES:
· ECM-280 Cardioid Condenser Microphone
· ECM-270 Cardioid Condenser Microphone
· ECM-33P Cardioid Condenser Microphone
· AC-148 48 Volt Phantom Power Supply
· SB-200 Sound-On-Sound and Echo Adapter
· NR-335 Dual-Process Dolby** I Noise Reduction Adapter
· MX-510 Active Five-Channel Stereo/Monaural Mixer
· MX-14 Active Six-Channel Stereo/Monaural Mixer
· DR-7A Low Impedance Stereo Headphones
· SB-300 Tape Recorder Selector
**TM Dolby Labs, Inc.
SPECIFICATIONS:
Frequency Response:
Standard Tape: 30 Hz to 20 kHz ± 3 dB @ 7-1/2 ips.
20 Hz to 17 kHz @ 3-3/4 ips.
SLH-180 Tape: 30 Hz to 27 kHz ± 3 dB @ 7-1/2 ips.
20 Hz to 20 kHz @ 3-3/4 ips.

Wow and Flutter: RMS (NAB Weighted)
0.07% @ 7-1/2 ips.
0.11% @ 3-3/4 ips.
Maximum Reel Size - 7"
Rewind Time 1200’ Tape (Seconds) - 60
Signal To Noise Ratio Standard Tape (db) – 53
Signal To Noise Ratio SLH Tape (db) – 56
Power Requirements - 120 VAC, 110 watts, 60 Hz
Tape Speed: 7-1/2, 3-3/4 ips.
Inputs:
2 Line In: (one for each channel)
Plug Type: Phono
Impedance: >100k Ohms
Input Sensitivity: 0.06 V.
2 Microphones: (one for each channel)
Plug Type: Phone
Impedance: Low
Input Sensitivity: -72 dB
Bias Frequency: 160 kHz
Head Configuration:
1 Quarter-Track Erase
1 Quarter-Track Record
1 Quarter-Track Playback
Type of Motor:
Induction Motor for Capstan x 1
Eddy Current Motors for Reels x 2
Outputs:
2 Line: (one for each channel)
Plug Type: Phono
Load Impedance: > 10k Ohms
Output Level: 0.775 V. (@ 0 VU) Max. Vol.
1 Stereo Headphone Jack
Plug Type: Binaural Phone Jack
Impedance: 8 Ohms
Dimensions: 14-7/8 W x 14-5/8 H x 8-7/8 D
Unit Weight: 40 lbs., 13 ozs.
Photo and data direct from Sony(Superscope) brochures. Thanks to A. W. Covert, Battle Creek, MI for this page.