Treiberröhre für Vaic (Ayon) Geräte, Monoblöcke ! 2 Stück, sehr genau selektier von AYON AUDIO, Paarpreios
Unbenutzt, matched pair, matched by Ayon Audio !
The AV 20B / AV20M is a very universal and stabile tube, combining high gain, with a low output impedance. At a gain of 20, at only 11 Watt dissipation, there is no comparable directly heated tube, that offers a plate impedance of 3200 Ohm.
As a driver tube, when using a plate resistor, it can work with high voltage circuits is typically used for an 845, 211, or VV520B, using a supply voltage of 500...1200 Volts. For lower Supply voltages the use of a plate choke is recommended. With a plate choke the tube can run at Supply voltages of 350...450 Volt. (See Note4 for use with HV tubes)
As a lower signal tube, you can work at any required lower voltage, since you don't need to generate a maximum voltage swing.
As an output tube, use 450 Volt supply voltage for obtaining the maximum output power of 2.5 Watt.
- AVVT's parallel ribbon filaments with 16 flat Surfaces, for more linearity
- Two extra large getters
- White nickel plates
- Unbreakable Hard-Glass Bulb
- Anti-microphonic Suspension in Tube Top
- Hard-metal filaments, which can never break. ( Note1)
- Ceramic UX4 Socket with Gold Plated pins