Vermes
Advanced Member level 4
This construction was based on an old tube amplifier.
It was not too easy to fix it as there was no schematic and the device was broken. It was disassembled into pieces. Then a schematic from the Internet was the new base for the construction. The design uses 2x EL84 and 2x ECC83. The power supply was made of AZ11 tube.
Power of the amplifier can be smaller than assumed because you will not receive such voltage as in the schematic using that tube. But AZ11 was used to meet the assumption that the amplifier is full tube. Large retro looking capacitors were used as an interesting but correctly operating part of the device. Transformers used in this design were also taken from the old amplifier. Other components were exchanged to new ones.
Electronic components were soldered to bases of the tubes.
Pictures:
Link to original thread (useful attachment) - Reanimacja starego wzmacniacza lampowego PP na EL84