Model:400 / 500 / 570
Country of Manufacture:United Kingdom
Release dates:1958 - 1961
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 3
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:7½ ips: 50Hz to 10kHz
Wow and Flutter:better than 0.2%
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
This early Reflectograph was fitted with a unique continuously variable speed control. In conjunction with a built-in stroboscope the record and playback speed
could be set and maintained at exactly 7½ and 3¾ ips.
Equipped with three heads and separate record and playback amplifiers,
the model 500 (mono) and model 570 (stereo) featured an easy to thread,
straight through tape path, a peak level recording meter and a pair of
matched internal speakers.
Hum and noise: -45 dB / Bias frequency: 50kHz approximately / Valve complement: Record amplifier: 1 x ECC83, 1 x EF91, 1 x ECC82 Playback amplifier: 2 x ECC83, 1 x EF86, 1 x EL84 H.T rectifier: 1 x EZ80 / Audio output power: 3 watts across 15 ohms / Output from playback preamp: 200mV / Dimensions: 21 x 14½ x 11″ (533 x 368 x 279 mm) / Weight: 70 lbs (32 kg) / half-track mono (model 500) and half-track stereo (model 570)