Technical Details
Brand: Harting
Model:HM 5
Category:Vintage
Application:Consumer
Electronics:Tube
Equalization:IEC
Country of Manufacture:Japan
Release dates:1958 - 1961
Tracks:1/2 Rec/PB
Speeds: 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Half-Track
# Motors: 1
Voltage(s): 220-240v
Outputs: DIN
Frequency Response:(± 2dB): 7½ ips: 30Hz - 20kHz 3¾ ips: 30Hz - 16kHz
Wow and Flutter:better than 0.1%
Signal-to-Noise Ratio:better than 55 dB unweighted
Sound quality rating:5 / 10
Long-term reliability rating: 5/ 10
Additional Details
Description
Imported from Germany by TSL (Technical Suppliers Limited) of Goldhawk Road, London W.12, the Harting
HM5 series of tape recorders were of extremely high quality.
Drive was via a very large Engel split-phase capacitor motor. The 5-inch diameter indirectly driven flywheel (weighing an impressive 4lbs) was statically balanced to within micro-grams. A very fast mechanical braking
system was employed and all shafts and bearings were precision ground to within micro-inches. As a result, wow and flutter figures were comparable to much more expensive tape recorders. Record/replay characteristics were to C.C.I.R. standards and Input mixing was possible.
Additional Info
Distortion: at 10dB below saturation point – less than 1% at 400Hz / Audio output power: 4 watts (6 watts peak) at 5 ohms / Amplifier input: 1 mV / Valve complement: EF86, ECC83, EL84, ECC81, EM84 and bridge rectifier / Bias frequency: 60 kHz / Fast wind time: 2½ minutes for 1800ft / Inputs: microphone, radio & phono – also socket for remote control / Outputs: external speaker, high impedance (0.5mV 10k) for external amplifier / Speaker(s): Lorenz high-flux 8½ x 6 inch speaker with large ALNI magnet / Dimensions: 12¾ x 15½ x 8½” (320 x 390 x 215 mm) 10½” (265 mm) high with lid closed / Weight: 37½ lbs (17kg) / half-track mono