JJ KT77 - QUARTETT
JJ KT77 - QUARTETT

JJ KT77 - QUARTETT

Product No.:
jjkt77-quad
<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* 
RoHs:
conform
Weight:
0.124 kg per Quad
103,20 €
25,80 € per Piece

incl. VAT excl. Shipping costs

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Very linear working 12AX7 / ECC83 with long anode plates and spiral heating, which makes the tube less sensitive to interference from AC heating.
We recommend this tube for audio and high-end amps as well as for "modern" Fender amps with more overdrive, but also as an input tube in old Marshall JCM800s.

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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JJ EL34 Version II - QUAD

4 tubes, matched as quad

EL34 II has fuller low mids and low end but does not lose headroom in the high end. Stronger than regular JJ EL34 but not as aggressive as the JJ E34L.

Typical Characteristics
  • Ua = 250 V
  • Ug3 = 0 V
  • Ug2 = 265 V
  • Ug1 = -13,5 V
  • Ia = 100 mA
  • Ig2 = 14,9 mA
  • S = 11 mA/V
  • Ri = 15 kΩ
  • μg2/g1 = 11
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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JJ 12AX7 / ECC83S

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

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17,90 €

JJ 5881 Red Label - QUAD

4 tubes, matched as quad

5881 Tube by JJ

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104,00 €
26,00 € per Piece

Sovtek 5AR4 / GZ34
23,80 €

JJ EL84 / 6BQ5 Red Label - QUARTETT

4 tubes, matched as quad

JJ EL84 / 6BQ5 Red Label

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67,00 €
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JJ 12AT7 / ECC81

JJ's version of the ECC81/12AT7 tube type with a warm and soft sound. Often used for phase inverters or reverb drivers.

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14,80 €