Vermes
Advanced Member level 4
It is a construction of class A headphone amplifier which can be easily made in every electronic workshop.
Amplifier:
Schematic of the headphone amplifier was based on **broken link removed**. The only changes were:
- transistors BC184 → transistors BC550B
- transistors BC214 → transistors BC560B
Power supply:
Symmetrical power supply with LM317/337 as stabilizers was to supply the system. Unfortunately, small size of housing did not allow to use them, so try to use smaller ones.
Housing:
Housing of ATX power supply was perfect for the needs of that project. It was polished and painted black matt. Front and rear were made of matt plexiglass, which was painted black matt from the inside.
Pictures:
Link to original thread (useful attachment) - Wzmacniacz słuchawkowy klasy A dla początkujących - JHL