SONY SRA-3

Commentary

Recording amplifier dedicated to stereo tape deck TC-263D.

Mixing recording is possible because the recording volume of the microphone input (magnetic cartridge input) and auxiliary input is possible.

Equipped with a VU meter.

The built-in RIAA equalizer allows recording directly from the magnetic cartridge.

In order to match the tape speed of 9.5cm/s and 19cm/s, a changeover switch of recording compensation characteristics is mounted.

It is equipped with a mode selection switch to enable monaural recording.

It is equipped with a safety button erroneous erasure.

Model Rating

Type	Recording Amplifier for TC-263D
Bias frequency	Approx. 100 kHz (push-pull oscillator)
Level indicator	VU meter
Erasing method	AC erase
Supported Tape Speeds	Two speeds of 19cm/s and 9.5cm/s
Adaptive recording head	Four track in-line stereohead (RP30-2902, PP15-2902)
Adaptive erase head	4-track in-line stereo erase head (EF18-2902)
Amplifier operation	Microphone input adjustment knob : 1 for each channel Auxiliary input adjustment knob : 1 for each channel Mode selector switch : 1 Record switch : 1
Input jack	Microphone input jack : 2 systems, 10k Ω Auxiliary input jack : 2 systems, 100k Ω Magnetic cartridge input jack : 2 systems, 22k Ω
Output jack	Output Jack for Recording Head : 2 Series Output Jack for Erase Head : 2 Systems Monitor output jack : 2 systems, 5k Ω
Recording compensation characteristic	NAB Standard
Vacuum tube used	6AU6:2 12AT7:2 12BH7A:1 6X4:1
Transistor used	TX-128:2
Power supply voltage	100 VAC, 50Hz/60Hz
Power consumption	Approx. 40W
External dimensions	Width 344x Height 115x Depth 344 mm
Weight	Approx. 5.8 kg
Attachment	Connection code : RK-56x3 Wood Screw, Washer, Nylon Washer x 4 Each