AVT2886 A

Although we are in the 21st century, tube systems still have their supporters. It results both from their charm (these mysteriously glowing glass bubbles) and the characteristic sound. Some enthusiasts even claim that none of the transistors will match this 'elderly'.
Following the voice of the masses, we suggest making a very simple tube preamplifier that can be attached to your audio system. It is dedicated primarily to those who had no previous contact with tube technology. Perhaps this construction will prove to be an introduction to a further, fascinating adventure with lamps.

The device is especially recommended for lovers of 'glass bubbles'

Selected parameters:

• a system based on a double triode of low power
• the preamplifier was designed in a classical way - with a common cathode with a resistor load
• possibility of making one of two versions; as a typical preamplifier with a potentiometer at the output or as a tube buffer
• power supply - 12-18Vdc
• dimensions of the tile 85x60mm
• printed circuit board and documentation included
  
  Detailed description in
  EdW 11/08