DO IT YOURSELF
TUBE AMPLIFIER "EXPRESSIVE"
TECHNICAL SPECIFICATIONS :
Output power raiting 30 W (SE Class A)
Watts-in 500 W
THD = 0.8 % (-3 db)
Uin = 1 V
Frequency response (-3 db) : 10 - 35000 Hz
Circuit diagram
The standard set of point-to-point wiring include :
Vacuum tubes :6F6S / 6F6 х 2 pcs; 6S2S х 2 pcs; GM70 х 2 pcs; 5C3S / 5U4G х 2 pcs; 5C4S х 1 pcs;
Anodic choke х 1 pcs;
Driver choke х 1 pcs;
Output transformers х 2 pcs;
Power transformer х 1 pcs;
Ceramic tube sockets х 9 pcs;
Full circuit diagram.
All transformers and chokes are potted into black boxes .
