Vacuum Tube Complement

6 x 6550C, 1 x 12AT7, 1x 12BH7

Output Power
20 Hz – 20 kHz into 5 ohm load

Tetrode = 220W
Triode = 110W

THD 20Hz - 20kHz @ 220W Tetrode
THD 20Hz - 20kHz @ 110W Triode

<2.5%

Input Sensitivity @ 220W Tetrode

2.0V

Input Impedance

42K Ohms

Optimum Load Range

4 - 8 Ohms

S/N Ratio @ 220W Tetrode
S/N Ratio @ 110W Triode

-110dB, 120Hz

Power Consumption

Idle = 230W
Full Power =900W

Primary Main Fuse Rating

110/120V = 12A Ceramic Slo Blo
220/240V = 6A Ceramic Slo Blo

Input Fuse

110/120V = 1A Ceramic Slo Blo
220/240V = 1A Ceramic Slo Blo

Logic Fuse

110/120V = 1A Ceramic Slo Blo
220/240V = 1A Ceramic Slo Blo

B+ Fuse Rating

Plate Fuse - 1.5A Fast Acting 600V
Screen Fuse - 0.75A Fast Acting 600V

Dimensions

W = 18.5 Inches (47 cm)
H = 9 Inches (23 cm)
D = 18 Inches (46 cm)

Weight

93 lbs (42 Kg) unpacked
110 lbs (50 Kg) packed