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• Termination Style: Axial     
• Power Rating: 5 W     
• Tolerance: 5 %     
• Temperature Coefficient: 350 PPM / C     
• Operating Temperature min/max: - 55 C / + 155 C    

2 tubes, matched as pair

KT66 is a beam power pentode with an octal base and power of 25W. It has a powerful sound with a lot of headroom.

Files:

• Datasheet

TT Selection: Balanced
Both systems with balanced gain

This tube is recommend to tame the gain of an amp and make it sound "sweeter". The 5751 has only a gain of 70 instead of 100 like the typical 12AX7/ECC83 tube type and can be used as a drop in replacement for 12AX7 / ECC83 tubes.

TT Selection: V1 - Low Noise
This tube is selected for sensitive input stages (V1)

The Ultimate 12AX7. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound.

• Type: Metalized Polyester Film Capacitors (PET)
• Voltage Rating: 630 V DC / 220 V AC
• Tolerance: +/- 10%
• Operating Temperature Range: - 55°C / + 100 °C
• Termination Style: axial

• Type: Metalized Polyester Film Capacitors
• Voltage Rating: 250 V
• Tolerance: +/- 10%
• Operating Temperature Range: - 40°C / + 85 °C
• Termination Style: axial

• Type: Aluminum Electrolytic Capacitors
• Capacitance: 220 µF
• Voltage Rating: 350 V
• Tolerance: - 10%+30%
• Operating Temperature Range: - 40°C / + 85 °C
• Dimensions: Ø 25 mm x 38 mm
• Termination Style: axial

• Type: Aluminum Electrolytic Capacitors
• Capacitance: 100 µF
• Voltage Rating: 350 V
• Tolerance: +/- 20%
• Operating Temperature Range: - 40°C / + 85 °C
• Dimensions: Ø 18 mm x 37 mm
• Termination Style: axial

• Type: Metalized Polyester Film Capacitors
• Voltage Rating: 400 V
• Tolerance: +/- 10%
• Operating Temperature Range: - 40°C / + 85 °C
• Termination Style: axial

• Type: Electrolytic can capacitor
• Capacitance: 3,3 µF
• Voltage Rating: 63 V
• Tolerance: - 20 % / +20 %
• Operating Temperature Range: - 40°C / + 105 °C
• Dimensions: Ø 4 mm x 7 mm
• Termination Style: radial
• Grid: 1,5

• Type: Electrolytic capacitor
• Capacitance: 4,7 µF
• Voltage Rating: 63 V
• Tolerance: - 10 % / +30 %
• Operating Temperature Range: - 40°C / + 85 °C
• Dimensions: Ø 4,5 mm x 11 mm
• Termination Style: axial

• +/- 5% tolerance
• -55° C to 240° C operating range
• Max 500 V
• Excellent flame retardant coating
• Different manufacturers

• Termination Style: Axial     
• Power Rating: 5 W     
• Tolerance: 5 %     
• Temperature Coefficient: 350 PPM / C     
• Operating Temperature min/max: - 55 C / + 155 C