| Year of manufacture: |
SC-2 1962 - 1965; SC-22 1965 - 1971 |
| Manufactured by: |
Radford Electronics
Ltd., Ashton Vale Estate, Bristol, 3 |
| Price when new (in the UK): |
SC-2: £27. 10s; SC-22: £32.
10s SC 22P £37. 10s |
| Harmonic & IM distortion: |
0.01% at 1.5V and below 0.05% at 2V |
| Frequency response: |
Disc RIAA 30 - 20,000 cps ±1dB;
other inputs 20 - 50,000 cps +0 -1dB |
| Crosstalk: |
50dB falling to 40dB at 10 kHz |
| Input sensitivity/impedance/signal
to noise ratio: |
mic: 1.5mV / 68k
/ 75dB below 5mV RMS at 1Kc/s
disc: 2.5mV / 68k
/ 70dB below 5mV RMS at 1Kc/s
auxiliaries: 100mV / 1m
/ 80dB below 100mV RMS at 1Kc/s |
| Input overload levels at clipping
point: |
disc: 850mV, others 900mV |
| Channel frequency response balance: |
±1dB at any setting |
| Transient response: |
rise time 10 microseconds; overshoot nil |
| Tone controls: |
bass ±12dB at 50 cps; treble ±12dB
at 15Kc/s |
| Filters: |
treble: 4, 7 and 10Kc/s,
nominal cut-off at 12dB per octave
rumble:
25dB per octave below 35 cps |
| Output impedance: |
5k
to amplifier, 10k
to tape |
| Dimensions: |
10½" wide x 3¾"
high x 13" deep (267 x 95 x 327mm) |
| Power requirements: |
300V at 9mA, 6.3V at 1.5A (Model SC-22P
self-powered) |
