Country of Manufacture:
Speeds: 1 7/8, 3 3/4, 7 1/2
Max Reel Size("): 3"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:(all 3 dB): 7½ ips: 40-15,000 cps
Wow and Flutter:
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
The RK5 Regal (sometimes referred to as the ‘Royal’) was a three speed, half-track recorder also offered in quarter-track configuration (RK54). Like its two predecessors, RK3 & RK4, the RK5 also utilised sister company Motek’s K10 tape transport.
It had a 5-watt (push-pull) output and an internal eight-inch elliptical speaker. The amplifier had a frequency response of 40-18,000 c/s ± 2 dB while the overall response at 7½ ips was 40-15,000 c/s ± 3 dB.
Price when new: £44 2s guineas (£47 5s for RK54 four-track).
Amplifier: 40-18,.000 c / Wow & flutter: Less than 0.2 per cent at 7½ ips. less than 0.3 per cent at 3¾ ips. / Signal to noise ratio: Better than 45 dB (fully modulated tape) / Total harmonic distortion: 3% at three watts / Rewind speed: 1,200 ft. within one minute / Audio output power: Five watts (push / pull) / Valve complement: Two ECL82, EL84. ECC83, EM84 plus silicon rectifier and diode / Inputs: Microphone (high impedance / 1.8 mV). radio / pick-up (350 mV / 250 K ohms) / Outputs: Extension loudspeaker (15 ohms). external amplifier (one volt) / Speaker(s): Eight-inch elliptical / Dimensions: 20½ x 14½ x 8½ inches (521 x 368 x 216mm) / Weight: 30lbs (13.6kg) / RK5 half-track mono, RK54 quarter-track