Manufacturer's Specifications
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Amplifier details
Specifications

 
   
Year of manufacture: 1956/1964
Manufactured by: Pamphonic Reproducers Ltd, 17 Stratton Street, London W1
Price when new (in the UK): £44, for the pair or separately for £29. 8s (2001 amplifier) and £12. 12s (2001A control unit)
Description: amplifier and control unit
Mono/stereo: mono
Power output: 25 watts maximum continuous
Harmonic distortion: power amplifier - 0.05% for 15 watts
Frequency response: power amplifier 2Hz-100Khz ±1dB;
Output impedance: 3.75, 6.6, 10 and 15
Tone controls (2001A): bass -14dB to +13dB at 40Hz; treble -15dB to +12dB at 10kHz
Amplifier input sensitivity: 500mV
Control unit Inputs: radio, tape, pick-up & microphone - input sensitivity from 3 to 120mV for 0.5V output
Signal to noise ratio: 2001 amplifier: -90dB
2001A control unit: approximately 40dB below 0.5V
Negative feedback: 30dB
Tubes: 2001 amplifier: ECC81, ECC83, 2 x KT66, GZ32
2001A control unit: 2 x ECC40
Dimensions: 2001 amplifier: 13 x 10 x 7" (330 x 254 x 178mm)
2001A control unit: 10¾ x 4 x 4" (273 x 102 x 102mm)
Weight: 2001 amplifier: 29 lbs (13.2 kg)
2001A control unit: 4½ lbs (2 kg)