Model:Heimstudio Mk 3335
Country of Manufacture:Germany
Release dates:1964 - 1968
Speeds: 1 7/8, 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 2
Head Composition: Permalloy
Head Configuration: Mono - Full Track
Frequency Response:(all 3 dB): 7½ ips: 40Hz - 17kHz
Wow and Flutter:(better than) 0.1% at 7½ ips, 0.15% at 3¾ ips and 0.25% at 1 ips
Signal-to-Noise Ratio:better than 50dB
Sound quality rating:5 / 10
Long-term reliability rating: 5 / 10
Designed and manufactured by Ing. Franz Leben of Dachau, the Heimstudio (home studio) was built exclusively for the German Quelle mail-order department store. Quelle was founded on October 26th, 1927 and by 1936 had over a million mail-order customers – this had grown to 2 million by the outbreak of War in 1939 . In 1949, they opened their first department store in Fürth, Germany..
This machine utilised the Truvox 90 deck with piano key operation, positive lock reel carriers,
4 digit counter, hinged editing panel, three tape speeds and three motor drive with Papst capstan motor.
The controls were exceedingly simple, five piano key
buttons controlled stop, forward wind, rewind and play, the latter being
interlinked with a record safety button.
Hum and noise: less than 45dB / Bias frequency: 62 KHz / Valve complement: ECC83 x 3, EC92, ECC85, ELL80 plus four transistors / Rewind speed: 55 seconds for 1,200ft / Audio output power: 5 watts / Speaker(s): elliptical (Goodmans) / Dimensions: 17.7 x 8.7 x 17.7 inches (450 x 220 x 450 mm) / Weight: 38.1 lbs (17.3 kg) / half-track mono