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__NOTOC__
 
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== Data ==
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== Daten ==
{{navigation}}
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{{Navigation}}
'''General'''
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'''Allgemein'''
* Manufacturer: Cambridge System Technologies (CST) - ''in Germany'' distributed by Püllmanns under the brand Camtech (otherwise Audiolab)
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* Hersteller: Cambridge System Technologies (CST) - in Deutschland von Püllmanns unter der Marke Camtech vertrieben (sonst Audiolab)
Model: P101
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* Modell: P101
* Years of manufacture: early to mid 90s.
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* Baujahre: Angfang bis Mitte der 90er Jahre
* Made in: England
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* Hergestellt in: England
Color: Black
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* Farbe: Schwarz
* Type: Stereo/Analog
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* Typ: Stereo/Analog
* Remote control: no
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* Fernbedienung: nein
* Power consumption: 20/480W (idle/volume)
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* Leistungsaufnahme: 20/480W (Leerlauf/Volleistung)
* Dimensions: 45/8/33 width/height/depth (cm)
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* Abmessungen: 45/8/33 Breite/Höhe/Tiefe (cm)
* Weight:approx. 9 kg
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* Gewicht:ca. 9 kg
* Original price approx.: 2650 DM (according to STEREO 6/1991)
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* Neupreis ca.:
  
  
'''Connections'''
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'''Anschlüsse'''
* Number of inputs:
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* Anzahl der Eingänge:
** 1 x Stereo Input (700mV / 50kOhm ||400pF).
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** 1 x Stereo Input (700mV / 50kOhm ||400pF)
 
** 1 x Stereo Load
 
** 1 x Stereo Load
* Number of outputs:
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* Anzahl der Ausgänge:
 
** 2 x Output left
 
** 2 x Output left
 
** 2 x Output right
 
** 2 x Output right
  
  
'''Technical data'''
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'''Technische Daten'''
* Continuous power (at THD)
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* Dauerleistung (bei Klirrfaktor)
** 8 Ohm: > 100/120W (0,1%/1,0% THD+N)
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** 8 Ohm: > 100/120W (0,1%/1,0% THD+N)
** 4 Ohm: > 150W (1,0% THD+N)
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** 4 Ohm: > 150W (1,0% THD+N)
* Dynamic power
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* Dynamikleistung
** 4 Ohm: > 250W
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** 4 Ohm: > 250W
2 Ohm: > 350W
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** 2 Ohm: > 350W
* Total harmonic distortion: max. 0.1%
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* Gesamtklirrfaktor: max. 0.1%
* Attenuation factor: 0.02 Ohm at 40Hz
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* Dämpfungsfaktor: 0,02 Ohm bei 40Hz
* Frequency response: 20Hz - 20,000Hz max +/- 0.3dB; 3Hz - 100,000Hz max +/-3.0dB
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* Frequenzgang: 20Hz - 20.000Hz max +/- 0,3dB; 3Hz - 100.000Hz max. +/-3,0dB
* Signal to noise ratio: > 115 dB
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* Signalrauschabstand: > 115 dB
* Stereo channel separation: >70dB
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* Stereokanaltrennung: >70dB
  
  
'''Special Features'''
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'''Besondere Ausstattungen'''
* Additional RCA Chinch input with the designation LOAD to be able to adjust the input impedance to the preamplifier.
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* Zusätzlicher RCA Chinch Eingang mit der Bezeichung LOAD um die Eingangsimpedanz an den Vorverstärker anpassen zu können.
Bi-wiring speaker terminals with the possibility of 4mm banana plugs (not CE version).
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* Bi-Wiring bzw. Bi-Amping Anschlüss mit der möglich der Aufnahme von 4mm Bananen Stecker.
* Electronic protection circuit for low speaker impedance less than 2Ohm and short circuit.
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* Elektronische Schutzschaltung bei niedriger Lautsprecher-Impedanz >2Ohm und Kurzschluß.
* Differential input stage with paired double JFETs 3SK389
 
* Autozero offset compensation by integrator circuitry
 
* Transistor manufacturer Sanken for driver and output stage transistors, the latter with ring emitter structure and paired Beta Ic/Ib
 
* Low inductance emitter resistors made by Noble
 
* Professional FR4 printed circuit board with fabric inlay
 
  
== Remarks ==
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== Bemerkungen ==
* Improved version of the P100 stereo power amplifier with optimized layout and RF immunity.
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* Verbesserte Version der P100 Stereoendstufe mit optimiertem Layout und HF Einstrahlfestigkeit
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* Später auch als CE Version erhältlich mit Schutzklasse II Isolierung d.h. ohne 3. Erdanlschluß im Kaltgeräteanschluß
  
* There are 2 variants of the P101 in protection class I
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== Bilder ==
** Beginning of the 90s with country of manufacture "Made in England" on the backside
 
** Mid 90's without country of manufacture indication on the rear panel, where the following modifications were made.
 
*** Modified inner chassis with mechanically optimised transformer mountings
 
*** Toroidal 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 up
 
*** pre-driver stage with modified temperature compensation
 
*** modified RC element for compensation of the oscillation tendency
 
** The P101 Made in England can be converted to the new version by component modifications.
 
  
Later also available as CE version with protection class II insulation, i.e. without 3rd earth connection in the IEC connector.
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== Berichte ==
 
 
== Pictures ==
 
[[File:Camtech P 101.jpg]]
 
 
 
== Reports ==
 
  
 
== Links ==
 
== Links ==
  
[[Category:Power Amplifiers]]
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[[Kategorie:Endstufen]]

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