Stereo Power Amplifier “Stella” Angstrom Audiolab

The amplifier is completely hand crafted.

Technical data sheet

  • Output power: 100Watt in pure Class A
  • Push Pull configuration with triode tubes
  • Two output toroidal transformers per channel in “Circlotron” connection
  • Transformers total output power: 370 Watt
  • Pure symmetric balanced circuit
  • Zero feedback
  • n. 6 independent power supplies
  • n. 2 amorphous high current choke (one per channel)
  • Output tubes: n. 6 EL34/channel (12 in total)
  • Input/Driver stage: n. 4 ECC82/channel (8 in total)
  • Input impedance: balanced 1MOhm; single ended 470 KOhm
  • Hum & noise: less then 2.0 mV rms 88dB rated output at 20Khz unweighted
  • Rise time: 2.5 µs
  • PS energy storage: 280 Joule
  • Point to point wiring with Mil-16878 Litz silver/copper wire with high temperature Teflon insulation
  • Vishay/Rodenstein capacitors MKT1813, MKP1840, MKP1841 series
  • All resistors Vishay CPF &RN65d series
  • Power consumption at max power: 1000 Watt (370 in idle)
  • Dimensions: 17.9” x 7,87” x 16.14” (W x H x D)
  • Weight:  90,39 lb (41 Kg).

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