1969 Chilton 100S
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Frustrated with modifying 'other-brand' tape recorder mechanisms (eg Collaro) for his high-quality REPS series of recorders in the late 1950's and 60's, Tom Reps and his team decided to design and build their own tape mechanism, based on what he had learnt from the mistakes of others.

The result was a mechanism which operated smoothly and positively with light button operation. A generous 10 watts per channel output was provided with two internal 6" x 4" oval speakers.

Additional images, a detailed vintage test report and a user manual for this model are provided on the Get Reel Contemporary Classics CD-Rom.




Specifications at a glance
Model
100S
Year
1969
Price when new (in the UK)
 £120 15s
Track system
quarter-track stereo
Heads
three (Bogen)
Motors
single hysteresis synchronous with solenoid operated controls
Maximum reel size
7"
Tape speeds
7½, 3¾ and 1 ips
Frequency response ( 2dB)
7½ ips: 30Hz - 18kHz
3¾ ips: 40Hz - 11kHz
1 ips: 50Hz - 7kHz
Equalisation
IEC (or NAB to order)
Wow & flutter
0.1% at 7½ ips, 0.15% at 3¾ ips and 0.25% at 1 ips
Signal to noise ratio
min. 50dB quarter-track, 53dB half-track (all speeds, unweighted)
Tone controls
10dBs at 50Hz, 10dBs at 10kHz (Baxandall type)
Crosstalk
better than 55dB mono, 45dB stereo
Distortion via tape (at 1kHz)
max 2% at 0dB (7½ & 3¾ ips); max 3% at +3dB 7½ ips
Bias frequency
100kHz, push pull
Semi-conductors
54 transistors, 12 diodes
Rewind speed
150 seconds max for 1800ft LP tape
Audio output power
2 x 10 watts RMS per channel (8 ohms), 7 watts (16 ohms)
Inputs
microphone: 600 - 50k ohms, 0.8 mV jack socket
radio: 100k ohms, 80mV DIN
gram: 47k ohms, 2mV corrected RIAA, DIN
Outputs
line: 2k ohms, 0.5 V DIN
radio: 10k ohms, 0.25 V DIN
speaker: 10 watts @ 8 ohms
headphones: stereo jack socket, medium and low Z version
Speaker(s)
two 6" x 4"
Dimensions
portable with lid: 8 x 16 x 19" (203 x 406 x 483 mm)
Weight
chassis version - 32 lbs (14.5 kg), portable 38 lbs (17.3 kg)
 
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