Camtech P101 specifications

Category : Power amplifiers

Brand : Camtech

General

Connections

Tech nical data

Special equipment

• Manufacturer: Cambridge System Tech nologies (CST) - sold in Germany by Püllmanns under the brand Camtech (otherwise Audiolab )
• Model: P101
• Years of construction: From the beginning to the mid-90s
• Manufactured in: England
• Color: Black
• Type: Stereo/Analog
• Remote control: no
• Power consumption: 20/480W (idle/full power)
• Dimensions: 45/8/33 Width/height/depth (cm)
• Weight: approx. 9 kg
< li>Factory price approx.: 2650 DM (according to STEREO 6/1991)

• Number of inputs:
  • 1 x Stereo Input (700mV / 50kOhm ||400pF)
  • 1 x Stereo Load
• Number of outputs:
  • 2 x Output left
  • 2 x Output right

• 1 x Stereo Input (700mV/ 50kOhm ||400pF)
• 1 x Stereo Load

• 2 x Output left
• 2 x Output right

• Continuous power (with total harmonic distortion)
  • 8 ohm: > 100/120W (0.1%/1.0% THD+N)
  • 4 Ohm : >150W (1.0% THD+N)
• Dynamic power
  • 4 ohm: > 250W
  • 2 Ohm : > 350W
• Total harmonic distortion: max. 0.1%
• Attenuation factor: 0.02 Ohm at 40Hz
• Frequency response: 20Hz - 20,000Hz max +/- 0.3dB; 3Hz - 100,000Hz max. +/-3.0dB
• Signal-to-noise ratio: > 115 dB
• Stereo channel separation: >70dB

• 8 Ohm s: > 100/120W (0.1%/1.0% THD+N)
• 4 ohms: > 150W (1.0% THD+N)

• 4 Ohm : > 250W
• 2 Ohm : > 350W

• Additional RCA RCA input with the designation LOAD in order to be able to adapt the input impedance to the preamplifier.
• Bi-wiring speaker connector with the possibility of accommodating 4mm banana plugs (not CE variant).
• Electronic protection circuit with low speaker impedance less than 2Ohm and short circuit.
• Differential input stage with paired double JFETs 3SK389
• Autozero offset compensation by integrator circuit
• Transistor manufacturers dropped for driver and output stage transistors, the latter with ring emitter structure and paired Beta Ic/Ib
• Low-induction emitter resistors from Noble company
• Professional FR4 printed circuit board with fabric insert

• Improved version of the P100 stereo amplifier with optimized layout and RF irradiance

• There are 2 variants of the P101 in protection class I
  • in the early 90s with manufacturer country information "Made in England" on the back
  • Middle of the 90s without manufacturer country information on the back, where the following modifications have been carried out.
    • Modified inner chassis with mechanically optimized transformer mounting
    • Toroidal core transformer with double output windings connected in parallel. --> less mechanical transformer hum
    • Reduced base current (bias current) of the output stage transistors approx. 65mA/140mV (old 95mA/210mV) --> less heating
    • Pre-driver stage with changed temperature compensation
    • changed RC element for compensation of the oscillation tendency
  < li>The P101 Made in England can be converted into the new version by assembly modifications.

• Early 90s with manufacturer country information "Made in England" on the back
• Middle of the 90s without manufacturer country information on the back, where the following modifications were carried out.
  • Modified inner chassis with mechanically optimized transformer mounting
  • Toroidal core transformer with double output windings connected in parallel. --> less mechanical transformer hum
  • Reduced base current (bias current) of the output stage transistors approx. 65mA/140mV (old 95mA/210mV) --> less heating
  • Pre-driver stage with changed temperature compensation
  • changed RC element for compensation of the oscillation tendency
< li>The P101 Made in England can be converted into the new version by assembly modifications.

• Modified inner chassis with mechanically optimized transformer mounting
• Toroidal core transformer with double output windings connected in parallel. --> less mechanical transformer hum
• Reduced base current (bias current) of the output stage transistors approx. 65mA/140mV (old 95mA/210mV) --> less heating
• Pre-driver stage with changed temperature compensation
• changed RC element for compensation of the oscillation tendency

< li>Later also available as CE version with protection class II insulation, i.e. without 3rd ground connection in the cold appliance connection

Comment:

Comment box:

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