Buy valvular Copland CTA-505 in very good condition both exterior and functional, the 6550 valves were changed in August 2013
The price is 1150 € + Shipping
Technical Data
Form Tube power amplifier Class A Triode operation
Effective output At the time of PENTODE connection: 67W+67W
At the time of TRIODE connection: 35W+35W
THD Below 0.02% (1kHz/1W)
Below 0.8% (1kHz/60W)
Frequency response 5Hz - -80kHz +/- 3 dB
Output bandwidth 8Hz - -45kHz 3 dB
Signal to noise ratio 102dB (IHF / input short-circuit)
Input sensitivity 1.5V
Input impedance 250kohm
Output load impedance 4 Ohms or 8 Ohms (minus community, plus connection substitute)
Negative feedback 16dB
The phase between input and output Right phase
Valves employed Voltage magnification and phase inversion: 12AX7A x 2 - 12AU7 x 2 - 12AT7 x 1
Electric-power magnification: 6550A SVETLANA x 4 set
Power consumption 185W (Electrical Appliance and Material Control Law)
Dimensions Width 430 mm x Height 175 mm x Depth 375 mm
Weight 25kg
The price is 1150 € + Shipping
Technical Data
Form Tube power amplifier Class A Triode operation
Effective output At the time of PENTODE connection: 67W+67W
At the time of TRIODE connection: 35W+35W
THD Below 0.02% (1kHz/1W)
Below 0.8% (1kHz/60W)
Frequency response 5Hz - -80kHz +/- 3 dB
Output bandwidth 8Hz - -45kHz 3 dB
Signal to noise ratio 102dB (IHF / input short-circuit)
Input sensitivity 1.5V
Input impedance 250kohm
Output load impedance 4 Ohms or 8 Ohms (minus community, plus connection substitute)
Negative feedback 16dB
The phase between input and output Right phase
Valves employed Voltage magnification and phase inversion: 12AX7A x 2 - 12AU7 x 2 - 12AT7 x 1
Electric-power magnification: 6550A SVETLANA x 4 set
Power consumption 185W (Electrical Appliance and Material Control Law)
Dimensions Width 430 mm x Height 175 mm x Depth 375 mm
Weight 25kg
