| Content | The Bugera EL84-4 Pack Power Amp tubes are subject to rigorous quality tests such as a 48-hour burn-in test and their vibration table test. The EL84 is the most common low power pentode tube, popularized in early Vox AC30 amps. Delivers quick, soft overdrive distortion, great for recording but usually too low volume for live gigs. | The JJ ECC81 / 12AT7 tube is a low noise and low microphonic preamp tube. A good choice for phase inverters and reverb circuits calling for 12AT7 tubes.
- 9 pin miniature preamp tube (amplification factor = 60),
- Less gain than a 12AX7
- Preferred by blues and jazz guitarists alike
| Socket: |
Noval(9 Pin) |
| Tube Type: |
12AT7/ECC81/6201 |
| Description
NN099 Tung Sol 12AX7 / ECC83
Premium high gain Twin Triode featuring ultra-low microphonics, and a big, warm and very musical soundstage. Performance surpassing NOS original in all areas.
- Improved reissue of the Vintage NOS Tung Sol 12AX7
- Superb linearity with a dynamic 3-D sound
- Preferred by guitar technicians for re-tubing and upgrading, but equally well suited for HiFi applications
- 7025 / ECC83 equivalent
- Made In Russiα
Strongly committed to quality manufacturing, Tung Sol tubes have always been known for their reliability and great tone. Today’s new production Tung Sol tubes are constructed with the same commitment to quality and reliability. Tung Sol tubes reflect the best in vintage Tung-Sol construction with unsurpassed tone and reliability. |
Selected ECC83 for the big & warm clean sounds (great for HiFi too!) and mellow top-end when pushed to overdrive. Our recommendation if you want to emphasize punchy mids. Especially great when pushed into a fat overdrive.
All preamp tubes labeled Premium Selected have passed the following tests:
- Low Noise Test
- Microphonic Test
- Gain Test
- Sonic Tests
- Shock Tests
- Listening Tests
- Balanced Output Test
Premium Selected
We call the tubes SELECTED which have passed above tests and thus qualify as reliable all-round tubes of their type.Typically this is around 30-60% from a batch that receives the SELECTED label from TAD.
For applications in particularly sensitive functions such as V1 or input stage with combo amps, V1 in high-gain amps, tube microphones and phono preamps, we recommend using the respective HIGHGRADE selection
Matching and Selecting Options for Preamp Tubes
Matching in Pairs for preamp tubes means that two tubes show identical gain, hence, four characteristically identical systems.
This matching method includes our Balance-Selection. We highly recommend this matching method for hi-fi systems.
TAD Premium Selected/Highgrade tubes are guaranteed for a period of 6 months (according to terms of warranties)
for the quality criteria mentioned above.
| Tube Type: |
12AX7/ECC83/7025 |
| Socket: |
Noval(9 Pin) |
| Selection: |
Premium |
| A rugged russian tube by Electro Harmonix.
Some claim the 6L6EH has been "Modeled after the vintage RCA 6L6GC "blackplate" and the 6L6EH features large plate dimensions".
To see what a real blackplate looks like see the picture on the right showing a RCA and a TAD blackplate small bottle 6L6.
Both are real black plate constructions and great for vintage guitar amps for pleasing smooth and fine complex tone structure. Best for any classic Fender Amplifier.
The 6L6EH is a very good choice for more modern hard rocking guitar sounds and recommened for this.
Tube Type 6L6/5881
Socket: Octal(8pin)
| double-triode 6N1P-EV / 6H1Pi, close to ECC88, 6DJ8, 6922
EXTRA-durable, long-life (-EV version), military equipment.
Tubes are made in 1980s. Tubes not used (new) |
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