JJ EZ81 / 6CA4

Retainer for EL84 / EL844Tubes

• Type: Multisection Capacitor
• Capacitance: 32 + 32 µF
• Voltage Rating: 500 V
• Tolerance: - 10% / +30 %
• Operating Temperature Range: - 40°C / + 85 °C
• Dimensions: Ø 35 mm x 50 mm
• Termination Style: radial, solder lugs

Terminal lock washer lug for M4 screws.

• Material: Brass
• Contact Finish: Tin
• Pack of 10

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

Mallory Type 150 is a general purpose capacitor for use in blocking, bypass, decoupling, smoothing and some timing applications.

• Epoxy end fill meets UL94V-0
• Non inductively wound
• Flame retardant outer wrap meets UL510
• Non polar

Specifications:

• Operating Tempeature Range: –55 ºC to +125 ºC (derate linearly to 50% rated voltage at 125 ºC)
• Dielectric Withstand Voltage: .6 x rated voltage for 2 s @ +25 ºC ±5 ºC
• Dissipation Factor (DF): tgd x 10–4 at +25 ºC ±5 ºC
• Insulation Resistance: 10,000 MO x µF, 30,000 MO Min.
• Self Inductance: 1 nH max. per 1 mm lead and body length
• Life Test: 1000 hrs @ 85 ºC 1.25 x Vn
• Damp Heat Test: 95% RH @ +45 ºC for 21 days
• Soldering: 260 ºC ±5 ºC for 10 s ±1 s
• Long Term Storage Stability: ?C/C = ±3% after 2 years

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

Images are for reference only. See Product Specifications

• 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

Images are for reference only. See Product Specifications

JJ EL84 #07 - Standard plus

• Slightly hotter than the #06 selection
• Selected and recommended for VOX AC 30 / 15  and similar amps.
• Price for one tube.

FAQ: If I order two or more of these tubes, are they all "the same"?
Yes, the tubes are all "matched" and selected for the in the description mentioned amplifiers.
FAQ: Can I replace the tubes myself or are adjustments needed?
Adjustments are not possible on the listed amplifier (unless a bias potentiometer has been added afterwards). The replacement can therefore be done without adjustments.

Warm and balanced overall sound, paired with high resolution and brilliance, which is why the TT12AT7 achieves the best results in both instrumental and audio/high-end amplifiers.

Features:

• Warm and balanced sound
• Excellent sound resolution and brilliance
• Ideal for instrumental and audio/high-end amplifiers

Hint;
Often, 12AU7 and 12AT7 types are used instead of 12AX7 tubes in order to either reduce the overall power of the amplifier or just take back the overdrive of the preamp. Especially the 12AU7 brings a very large tonal difference compared to a 12AX7, which is usually much greater than when switching from a 12AX7 to 5751 or 12AT7.

When using a 12AU7 in a driver stage that is normally designed for 12AX7, the overall power of the power amp is usually reduced. How big this difference is depends on the amplifier or circuit. For example, a Marshall with a 12AX7 in the phase inverter stage set to volume 5 will then reach the same volume with a 12AU7 set to volume 6 (perceived volume, not measured).

Electrical Characteristics

• Heater Voltage (Uf): 6.3V or 12.6V
• Heater Current (If): 300mA at 6.3V, 150mA at 12.6V
• Anode Voltage (Ua): Maximum 300V
• Grid Voltage (Ug1): -2V (typical)
• Anode Current (Ia): 10mA (typical)
• Anode Power Dissipation: Maximum 2.5W per triode
• Anode Resistance (ra): 11kΩ
• Amplification Factor (μ): 60
• Transconductance (S): 5.5mA/V
• Input Capacitance (Cin): 1.6pF
• Output Capacitance (Cout): 1.6pF

Mechanical Characteristics

• Socket: B9A (Noval)
• Number of Pins: 9

Pin Configuration

• 1 Anode (Triode 1)
• 2 Grid (Triode 1)
• 3 Cathode (Triode 1)
• 4 Heater (f)
• 5 Heater (f)
• 6 Anode (Triode 2)
• 7 Grid (Triode 2)
• 8 Cathode (Triode 2)
• 9 Center Heater (f)

Application Notes

• Heater Operation: The tube can be operated with either 6.3V or 12.6V, depending on the circuit design.
• Grid Resistors: It is recommended to use grid resistors of at least 1MΩ to ensure stable operation.
• Coupling Capacitors: Capacitors with low capacitance (typically 0.1µF) are recommended to minimize high frequency disturbances.

Mallory Type 150 is a general purpose capacitor for use in blocking, bypass, decoupling, smoothing and some timing applications.

• Epoxy end fill meets UL94V-0
• Non inductively wound
• Flame retardant outer wrap meets UL510
• Non polar

Specifications:

• Operating Tempeature Range: –55 ºC to +125 ºC (derate linearly to 50% rated voltage at 125 ºC)
• Dielectric Withstand Voltage: .6 x rated voltage for 2 s @ +25 ºC ±5 ºC
• Dissipation Factor (DF): tgd x 10–4 at +25 ºC ±5 ºC
• Insulation Resistance: 10,000 MO x µF, 30,000 MO Min.
• Self Inductance: 1 nH max. per 1 mm lead and body length
• Life Test: 1000 hrs @ 85 ºC 1.25 x Vn
• Damp Heat Test: 95% RH @ +45 ºC for 21 days
• Soldering: 260 ºC ±5 ºC for 10 s ±1 s
• Long Term Storage Stability: ?C/C = ±3% after 2 years

Mallory Type 150 is a general purpose capacitor for use in blocking, bypass, decoupling, smoothing and some timing applications.

• Epoxy end fill meets UL94V-0
• Non inductively wound
• Flame retardant outer wrap meets UL510
• Non polar

Specifications:

• Operating Tempeature Range: –55 ºC to +125 ºC (derate linearly to 50% rated voltage at 125 ºC)
• Dielectric Withstand Voltage: .6 x rated voltage for 2 s @ +25 ºC ±5 ºC
• Dissipation Factor (DF): tgd x 10–4 at +25 ºC ±5 ºC
• Insulation Resistance: 10,000 MO x µF, 30,000 MO Min.
• Self Inductance: 1 nH max. per 1 mm lead and body length
• Life Test: 1000 hrs @ 85 ºC 1.25 x Vn
• Damp Heat Test: 95% RH @ +45 ºC for 21 days
• Soldering: 260 ºC ±5 ºC for 10 s ±1 s
• Long Term Storage Stability: ?C/C = ±3% after 2 years