AVT2978 A

Tube systems almost lost their time forever. Only a few remember the years of their magnificence, mainly for the schemes in magazines or perishable Rubies. Currently, despite the rule of semiconductors, among the young electronics, there is a growing interest in glass 'bubbles'. Maybe it is due to the mysterious light of a hot cathode, maybe - a retreat from bytes, gigahertz etc. For these people, a simple tube amplifier was designed. Few elements, ease of performance and power supply - high voltage obtained in the converter - all this speaks for the construction of this nostalgic device.

The device is especially recommended for novices and lamp professionals

Selected parameters:

• two PCC88 lamps were used in the system
• signal part connected in the air, voltage converter on the board
• smooth volume control
• system with output transformers
• power supply - 9-12Vdc
• printed circuit board and documentation included
  
  Detailed description in
  EdW 5/11