JJ 6CA7 -  PAIR
JJ 6CA7 -  PAIR
Preview: JJ 6CA7 -  PAIR
Preview: JJ 6CA7 -  PAIR
JJ 6CA7 - PAIR
Mobile Preview: JJ 6CA7 -  PAIR
Mobile Preview: JJ 6CA7 -  PAIR

JJ 6CA7 - PAIR

Product No.:
jj6ca7-pair
<font color=green><b>In stock for immediate delivery.</b></font> </br>Delivery time depends on the destination country* In stock for immediate delivery.
Delivery time depends on the destination country* 
Weight:
0.13 kg per Pair
53,00 €
26,50 € per Piece

incl. VAT excl. Shipping costs

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EH EL34 - PAIR

2 tubes, matched as pair

Mullard reincarnated. With the EL34EH, Marshall amp owners can recreate the balanced tone, deep, tight bass, sweet mids, and well-defined highs of the original equipment Mullards. Innovative design and precision construction give the EL34EH exceptionally smooth and an ideal balance of pleasing even-order harmonics while virtually eliminating undesirable odd-order harmonics.

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53,90 €
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JJ EL34 Red Label - PAIR

2 tubes, matched as pair

Standard EL34 made by JJ with a smooth and dizzy sound.

Limiting Values:

  • Ua0: 2000 V
  • Ua: 800 V
  • Wa(max): 25 W
  • Ug20: 800 V
  • Ug2: 450 V
  • Wg2(max): 8 W
  • Ik: 150 mA
  • Uk/f: 100 V
  • Rk/f: 20 kΩ
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45,40 €
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Probe Bias Octal, assembled
Bias probe for indirect measurement of quiescent bias current of a tube. The adapter is inserted between the tube and the socket and gets connected to a standard voltmeter (not included). Pay attention to the quality of the measuring device and sufficiently charged batteries!

The quiescent current is measured indirectly via a precision resistor integrated in the adapter. The advantages of this measuring method are harmless voltages at the measuring plugs, which are in the mV range, as well as short ways for the current, since it does not need to be fed through the measuring device (common practice with many measuring adapters of Far Eastern production). As a result, there is no risk of oscillations of the amplifier which can lead to possible damage of the tubes or the amplifier itself.

Note: This adapter cannot be used when additional tube brackets are installed. These must be removed before using the measurement adapter and reattached after the measurement is complete.

Procedure for the measurement

Determine the resistance of the adapter, including the measuring leads. To do this, connect the adapter to the meter, but do not plug it between the tubes and the amplifier, yet. Select the measuring range “Ohm” on the meter and note the measured value, e.g. 1,1 ohms.

For the final measurement insert the adapter between the tube and the currentless amplifier and connect it to the meter, select the measuring range mV and switch on the amplifier. When the amplifier has reached a stable operating condition, read the value in mV from the meter and calculate the quiescent current based on Ohm's law.

Example:
measured voltage = 47 mV, resistance of the adapter = 1,1 ohms.
Formula (I = U / R) or in this case:
bias current (in A) = measured value (voltage in V) / measured value (resistance in ohm)
0.047V / 1.1 ohms = 0.042A or 42mA respectively

For the calculation of the correct bias current as well as further information on the bias measurement, please refer to further documents or the bias setting instructions in the info area, as well as the manual of the amplifier itself.

This measuring adapter is suitable for all EL34, 6L6, 6550, KT88, 6V6, 6CA7 and other tubes with the same pin layout.

Attention high Voltage! Measurements and work on tube amplifiers should only be carried out by qualified persons.
26,90 €

JJ 12AX7 / ECC83S V1

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

Sweet and warm sounding preamp tube with high gain. We recommend this tube for guitar/bass amps.

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21,90 €

JJ ECC803 Selected GOLD

Sonically similar to the "normal" JJ 12AX7, but the overall sound is "fuller" and "stronger" with a more powerful bass. Visually, compared to the normal JJ 12AX7, the long anode plates stand out, as well as a slightly higher current. Suits well in guitar and bass amps, but also in audio and high-end areas.

All JJ gold preamp tubes are selected within a close tolerance and handtested for best sound and quality. Furthermore all pins are gold plated to achieve best electrical contact.
What about the sound? It is still the famous and well known JJ brownsound - warm and smooth.

Note: Tubes equipped with long plates are commonly associated with a "warmer" or "richer" sound, whereas those with shorter plates tend to deliver a "tighter sound". However, tubes featuring long plates exhibit increased sensitivity to vibrations and mechanical disturbances, rendering them less ideal for critical applications.

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32,90 €