T-EL84-JJ-MP - Apex Matched Pair version | Body Height | 71.4 mm |

Cathode Current (I_{k}) | ≤ 65 mA |

Filament Current (I_{f}) | 0.76 A |

Filament Voltage (U_{f}) | 6.3 V |

Gain (μ) | 19 |

Grid 1 to filament capacitance (c_{g1f}) | 0.15 pF |

Grid Circuit Resistance 1 (R_{g1}), Automatic Bias | 1 MΩ |

Grid Circuit Resistance 1 (R_{g1}), Fixed Bias | 0.3 MΩ |

Grid Voltage 1 (U_{g1}) | ≥ -100 V, -7.3 V typical |

Grid Voltage 2 (U_{g2}) | ≤ 300 V, 250 V typical |

Grid to Cathode Capacitance (c_{g/k}) | 10 pF |

Grid to Plate Capacitance (c_{a/g}) | 0.6 pF |

Heater to cathode voltage (U_{k/f}) | ≤ 100 V |

Internal Resistance (R_{i}) | 40 kΩ |

Item Diameter | 22 mm |

Item Height | 77.8 mm |

Plate Capacitance (c_{a}) | 5.1 pF |

Plate Current (I_{a}) | 48 mA |

Plate Dissipation (W_{a}) | ≤ 12 W |

Plate Voltage (U_{a}) | ≤ 300 V, 250 V typical |

Transconductance (S) | 11.3 mA/V |

T-EL84-JJ-MQ - Apex Matched Quad version | Body Height | 71.4 mm |

Cathode Current (I_{k}) | ≤ 65 mA |

Filament Current (I_{f}) | 0.76 A |

Filament Voltage (U_{f}) | 6.3 V |

Gain (μ) | 19 |

Grid 1 to filament capacitance (c_{g1f}) | 0.15 pF |

Grid Circuit Resistance 1 (R_{g1}), Automatic Bias | 1 MΩ |

Grid Circuit Resistance 1 (R_{g1}), Fixed Bias | 0.3 MΩ |

Grid Voltage 1 (U_{g1}) | ≥ -100 V, -7.3 V typical |

Grid Voltage 2 (U_{g2}) | ≤ 300 V, 250 V typical |

Grid to Cathode Capacitance (c_{g/k}) | 10 pF |

Grid to Plate Capacitance (c_{a/g}) | 0.6 pF |

Heater to cathode voltage (U_{k/f}) | ≤ 100 V |

Internal Resistance (R_{i}) | 40 kΩ |

Item Diameter | 22 mm |

Item Height | 77.8 mm |

Plate Capacitance (c_{a}) | 5.1 pF |

Plate Current (I_{a}) | 48 mA |

Plate Dissipation (W_{a}) | ≤ 12 W |

Plate Voltage (U_{a}) | ≤ 300 V, 250 V typical |

Transconductance (S) | 11.3 mA/V |

T-EL84-JJ-MPB - Apex Burned-In Matched Pair version | Body Height | 71.4 mm |

Cathode Current (I_{k}) | ≤ 65 mA |

Filament Current (I_{f}) | 0.76 A |

Filament Voltage (U_{f}) | 6.3 V |

Gain (μ) | 19 |

Grid 1 to filament capacitance (c_{g1f}) | 0.15 pF |

Grid Circuit Resistance 1 (R_{g1}), Automatic Bias | 1 MΩ |

Grid Circuit Resistance 1 (R_{g1}), Fixed Bias | 0.3 MΩ |

Grid Voltage 1 (U_{g1}) | ≥ -100 V, -7.3 V typical |

Grid Voltage 2 (U_{g2}) | ≤ 300 V, 250 V typical |

Grid to Cathode Capacitance (c_{g/k}) | 10 pF |

Grid to Plate Capacitance (c_{a/g}) | 0.6 pF |

Heater to cathode voltage (U_{k/f}) | ≤ 100 V |

Internal Resistance (R_{i}) | 40 kΩ |

Item Diameter | 22 mm |

Item Height | 77.8 mm |

Plate Capacitance (c_{a}) | 5.1 pF |

Plate Current (I_{a}) | 48 mA |

Plate Dissipation (W_{a}) | ≤ 12 W |

Plate Voltage (U_{a}) | ≤ 300 V, 250 V typical |

Transconductance (S) | 11.3 mA/V |

T-EL84-JJ-MQB - Apex Burned-In Matched Quad version | Body Height | 71.4 mm |

Cathode Current (I_{k}) | ≤ 65 mA |

Filament Current (I_{f}) | 0.76 A |

Filament Voltage (U_{f}) | 6.3 V |

Gain (μ) | 19 |

Grid 1 to filament capacitance (c_{g1f}) | 0.15 pF |

Grid Circuit Resistance 1 (R_{g1}), Automatic Bias | 1 MΩ |

Grid Circuit Resistance 1 (R_{g1}), Fixed Bias | 0.3 MΩ |

Grid Voltage 1 (U_{g1}) | ≥ -100 V, -7.3 V typical |

Grid Voltage 2 (U_{g2}) | ≤ 300 V, 250 V typical |

Grid to Cathode Capacitance (c_{g/k}) | 10 pF |

Grid to Plate Capacitance (c_{a/g}) | 0.6 pF |

Heater to cathode voltage (U_{k/f}) | ≤ 100 V |

Internal Resistance (R_{i}) | 40 kΩ |

Item Diameter | 22 mm |

Item Height | 77.8 mm |

Plate Capacitance (c_{a}) | 5.1 pF |

Plate Current (I_{a}) | 48 mA |

Plate Dissipation (W_{a}) | ≤ 12 W |

Plate Voltage (U_{a}) | ≤ 300 V, 250 V typical |

Transconductance (S) | 11.3 mA/V |

T-EL84-JJ - Single version | Body Height | 71.4 mm |

Cathode Current (I_{k}) | ≤ 65 mA |

Filament Current (I_{f}) | 0.76 A |

Filament Voltage (U_{f}) | 6.3 V |

Gain (μ) | 19 |

Grid 1 to filament capacitance (c_{g1f}) | 0.15 pF |

Grid Circuit Resistance 1 (R_{g1}), Automatic Bias | 1 MΩ |

Grid Circuit Resistance 1 (R_{g1}), Fixed Bias | 0.3 MΩ |

Grid Voltage 1 (U_{g1}) | ≥ -100 V, -7.3 V typical |

Grid Voltage 2 (U_{g2}) | ≤ 300 V, 250 V typical |

Grid to Cathode Capacitance (c_{g/k}) | 10 pF |

Grid to Plate Capacitance (c_{a/g}) | 0.6 pF |

Heater to cathode voltage (U_{k/f}) | ≤ 100 V |

Internal Resistance (R_{i}) | 40 kΩ |

Item Diameter | 22 mm |

Item Height | 77.8 mm |

Plate Capacitance (c_{a}) | 5.1 pF |

Plate Current (I_{a}) | 48 mA |

Plate Dissipation (W_{a}) | ≤ 12 W |

Plate Voltage (U_{a}) | ≤ 300 V, 250 V typical |

Transconductance (S) | 11.3 mA/V |

## Product Reviews

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Direct make and model replacement for an Orange amp output tube that went south. Did the trick.

Great tubes for my peavey classic 30 they sound great and give good life too!

I have had very good service life and sound with the JJ EL84's for the past several years. My customers like them too, and I recommend them for many modern and vintage amps.

I needed some matched sets of EL84 tubes to install in two Crate Vintage Club combo amps equipped with non- adjustable fixed bias. JJ EL84 tubes were the only EL84 tubes I found that were perfectly biased to these Crate amps. The JJ tubes also sounded very good.

I needed some matched sets of EL84 tubes to install in two Crate Vintage Club combo amps equipped with non- adjustable fixed bias. JJ EL84 tubes were the only EL84 tubes I found that were perfectly biased to these Crate amps. The JJ tubes also sounded very good.

Long lasting reliable tubes ! Best fit for a Classic 30.

Works fine. Cleaned up my noisy amplifier.

These tubes arrived fast, were matched, and sound great!

I designed the JJ-EL84 (class A configuration) into my stereo and the sound is amazing. A dependable tube with crisp highs and beautiful lows.

A fine tube for a reasonable price.

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