Silicon Tube Damper for 12AX7, EL84

Premium medium-Mu Twin Triode for use in preamplifier.

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

Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube to be designated 7025. The original 7025 tube was a 12AX7 that was tested and selected for the lowest noise and microphonics for use in the critical first preamp stages of amplifiers where noise and microphonics could be an issue. In order to ensure that the 7025 specification is consistently met, Electro-Harmonix has redesigned the structure of the 12AX7 and has implemented construction techniques to ensure the absolute lowest noise and microphonics possible. In all samples tested, noise and microphonics could not be detected.

The Electro-Harmonix 7025EH has a mid-range that gives clarity and definition to the sound and a smooth top end for warmth and balance. With these characteristics, along with the exceptionally low noise and low microphonics, the Electro-Harmonix 7025EH will work equally well in vintage and modern high-gain guitar amplifiers, as well as sensitive phono preamps.

Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube to be designated 7025. The original 7025 tube was a 12AX7 that was tested and selected for the lowest noise and microphonics for use in the critical first preamp stages of amplifiers where noise and microphonics could be an issue. In order to ensure that the 7025 specification is consistently met, Electro-Harmonix has redesigned the structure of the 12AX7 and has implemented construction techniques to ensure the absolute lowest noise and microphonics possible. In all samples tested, noise and microphonics could not be detected.

The Electro-Harmonix 7025EH has a mid-range that gives clarity and definition to the sound and a smooth top end for warmth and balance. With these characteristics, along with the exceptionally low noise and low microphonics, the Electro-Harmonix 7025EH will work equally well in vintage and modern high-gain guitar amplifiers, as well as sensitive phono preamps.

TT Selection: Balanced
Both systems with balanced gain

Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube to be designated 7025. The original 7025 tube was a 12AX7 that was tested and selected for the lowest noise and microphonics for use in the critical first preamp stages of amplifiers where noise and microphonics could be an issue. In order to ensure that the 7025 specification is consistently met, Electro-Harmonix has redesigned the structure of the 12AX7 and has implemented construction techniques to ensure the absolute lowest noise and microphonics possible. In all samples tested, noise and microphonics could not be detected.

The Electro-Harmonix 7025EH has a mid-range that gives clarity and definition to the sound and a smooth top end for warmth and balance. With these characteristics, along with the exceptionally low noise and low microphonics, the Electro-Harmonix 7025EH will work equally well in vintage and modern high-gain guitar amplifiers, as well as sensitive phono preamps.

• Rubber foot with steel insert
• Size: d = 38 mm, h = 15 mm
• Pack of 4
• Screws included

• Rubber foot with steel insert
• Size: 38 x 10 mm
• Pack of 4
• Screws included

Set of componentes for building the TT JC18 Guitar Amp.
Please visit the >>Project page for more infos about the amp, schematics and layout.

INCLUDED:

• Powertransformer Tube-Town 18W, 0-120-230-240V @ 50/60 Hz
• Outputtransformer Hammond 1750PA
• Resistors
• Capacitors
• Jacks
• Light
• Wires
• Board
• Switches
• Tubes
• Fuses & Fuesholder

NOT INCLUDED:

• Chassis
• Knobs
• Faceplate

To build this project knowledge in electric engeneering, experience with high voltage, and the reading and understanding of schematics and dealing with measurement device is highly recommended .
There is NO step-by-step guide for beginners. The circuit and layout plan includes all relevant information. If you don't understand it then don't build it.
THIS IS NOT A BEGINNERS PROJECT !

• High Power Resistor
• Rating: 8.2 Ohms / 5%
• Power: 100 Watt / 40 Watt without heat sink
• Size: 64 x 47 mm
• Aluminium Chassis
• Norm: MiL-R-18546 E (RE 70)

Great for attenuators, power soaks and dummy loads
Very low background noise
RoHS Compliant

• Self tap screw
• flange head
• DIN 968
• 4.5 x 19 mm, black
• Extra Flat - ideal for the mounting of the corners