Maintained! A VT-4C single amplifier built into the Suzurando SL-990 chassis. The transformer is equipped with a Tango X-10S pair, MS-210DR, and CH-12-200D. I am overwhelmed by the strong sound pressure that seems to push it to the front. If you combine it with a large horn system, etc., you will be addicted to the pleasure of being bathed in music (Kojima Yosuke)
Maintenance information: 2024.5.2 maintained (relay disassembly repair · block capacitor 47 μF x 2 other deterioration replacement 2 units · resistance 1W deterioration replacement · 3 x ham balance volume addition · resistance 5 W addition · bridge diode addition · power supply switch deterioration exchange · electrolytic capacitor 68 μF noise exchange · 2 film capacitor 1/2 W noise replacement · 3 resistor 1/2W noise replacement · 3 resistor 1/2W noise replacement · Operation check with AC 100V (rated output 12 W, measured at SP: 8 ohm*BIAS and HUM BAL. on the back side have been adjusted. (Please adjust only when the output tube is replaced)
Accessories: power cable
Main specifications: W500 x H270 x D275 mm 36.7 kg (actual measurement, not including protrusions)
Input transformer pair sale primary impedance 600 Ω (150 Ω split) secondary impedance 600 KΩ (150 kΩ split) primary inductance 70H W50 × H70 × D57 mm 0.75 kg/piece (actual measurement, not including protrusions) The badge is discolored, and there are scratches in places (Kojima Yosuke)
Accessories: specifications
Choke transformer hammer tone color 15H/150mA DC resistance 155 Ω (measured 154.6 Ω) W84 x H105 x D75 mm 2.3 kg There are fine bumps and line scratches (Kojima Yosuke)
Accessories: none
Line transformer using TANGO's input transformer, NN-600-600. The overall sound resolution is increased, and the sense of sound pressure is also enhanced. Recommended for those using speakers with horn drivers. TANGO badges are discolored, and there are tape marks and bumps on the chassis (Kojima Yosuke)
Maintenance information: 2024.4.18 Operation confirmed
Accessories: none
Main specifications: primary impedance 600 Ω (150 Ω split) secondary impedance 600 KΩ (150 kΩ split) primary inductance 70 H W140 × H110 × D100 mm 1.8 kg (actual measurement, not including protrusions)
Power transformer primary: 100V/1.5A secondary: 320-280-0-70-270-320V/
AC0.16A 5V/3A 2.5V/3A ×2 6.3V/3A W109 × H110 × D95 mm 3.7 kg There is dullness and line damage in places (Kojima Yosuke)
Accessories: none
Output transformer sale push pull output 40W primary: 8 kΩ secondary: 4-8-16 Ω W83 x H104 x D 78 mm 2.3 kg/piece There are abrasions and line scratches in places (Kojima Yosuke)
Accessories: none
Output transformer sale push pull output 40W primary: 5KΩ secondary: 4-8-16Ω W84 x H119 x D79 mm 2.3 kg/piece No TANGO badge, there are abrasions and line scratches in places (Kojima Yosuke)
Accessories: none
Power transformer primary: 100V secondary: 5V/3A, 2.5-6.3V/5.2 A x 2, 6.3V/3A, 360-400-450V/170mA W120 x H95 x D105 mm 5.3 kg (not including protrusions) There are abrasions and line scratches in places (Kojima Yosuke)
Accessories: none
Output transparent pair for push-pull output 40W primary: 8kΩ secondary: 4-8-16 ohms W83 x H104 x D78 mm 2.3 kg/piece with original box (no label on one side) There are scuffs and line scratches in places (Kojima Yosuke)
Accessories: original box
Output transparent pair for push-pull output 40W primary: 10 kΩ secondary: 4-8-16 ohms Usage: VT-62, VT-25, 6F6, 6V6, etc. W83 x H105 x D78 mm approx. 2.3 kg/piece (actual measurement, not including protrusions) with original box with scuffs and tape marks in places (Kojima Yosuke)
Accessories: original box
Power transformer primary: 100-105V secondary: 24-0-24V/0.18A, 6.3V/0.6A, 25-22.5-20-0-20-22.5-25V/2.6A W100 x H80 x D84 mm 3.2 kg (actual measurement, not including protrusions) There is dullness and abrasions on the body with stays (Kojima Yosuke)
Accessories: stay (main unit attached)
Power transformer primary: 100-105V secondary: 24-0-24V/0.18A, 6.3V/0.6A, 25-22.5-20-0-20-22.5-25V/2.6A W100 x H80 x D84 mm 3.2 kg (actual measurement, not including protrusions) There is dullness and abrasions on the body with stays (Kojima Yosuke)
Accessories: stay (main unit attached)
Unused item! Power supply/heater transformer custom product primary: 100V secondary: 5V/3A, 6.3V/2.5A, 600-550-535-0-80-535-80-535-550-600V/0.17A, CT-5V/1.5A × 2 W122 x H87 x D105 mm 5.3 kg (actual measurement, not including protrusions) mounting nut with original box (Kojima Yosuke)
Accessories: mounting nuts, original box
Unused item! Power supply/heater transformer custom product primary: 100V secondary: 5V/3A, 6.3V/2.5A, 600-550-535-0-80-535-80-535-550-600V/0.17A, CT-5V/1.5A × 2 W122 x H87 x D105 mm 5.3 kg (actual measurement, not including protrusions) mounting nut with original box (Kojima Yosuke)
Accessories: mounting nuts, original box
Unused item! Power supply/heater transformer custom product primary: 100V secondary: 5V/3A, 6.3V/2.5A, 600-550-535-0-80-535-80-535-550-600V/0.17A, CT-5V/1.5A × 2 W122 x H87 x D105 mm 5.3 kg (actual measurement, not including protrusions) mounting nut with original box (Kojima Yosuke)
Accessories: mounting nuts, original box