| Description |
- Premium selected quality for the most demanding amp stages.
- Great warm clean tones and fat overdrive with smooth top end.
- Recommended for 1st gain stage.
- Upgrades 12AX7A and ECC83 tubes.
- Replaces 7025 tubes.
|
- Very good gain, tight deep bass, fat mids and silky top end with overall definition and brightness.
- Selected and recommended for guitar amps to improve overall response.
- Best for clean tones as well as for those deep-bass required for modern preamps.
- The TAD 12AX7A-C became the 1st choice for Boogie®, Brunetti®, Diezel® , Engl®, Fender®, Hughes & Kettner®, Koch®, Laney®, Marshall®, Soldano®, Trace Elliot® and so many more.
| | | Εξαιρετική προενισχυτριά διπλή τριόδα υψηλού Gain (συντελεστής ενίσχυσης) χαμηλή σε μικροφωνισμούς με μεγάλη, ζεστή χροιά και μουσικό χαρακτήρα. Η απόδοση της ξεπερνά τις πρωτότυπες NOS σε όλα επίπεδα. | |
| Content | Product information "7025 HIGHGRADE TAD Premium Selected"
Warm, clean tone with creamy overdrive!
PREMIUM selected quality for the most demanding amp stages. This tube works greatly for warm clean tones and creamy overdrive. We recommend this tube for the 1st gain stage and as input tube. It upgrades 12AX7A and ECC83 tubes and replaces E83CC tubes.
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
The HIGHGRADE Selection is the tip-of-the-top quality at the lowest noise (microphony, hum, hiss) level. Tipically only 0,5-2% out of the whole production of this tube meet the HIGHGRADE requirements.
NOTE: due to extreme demanding TAD-Selection criteria, the availability of this tube is limited. Please check the information about availability.
The TAD 7025 Highgrade can replace any ECC83, E83CC, ECC803S, 12AX7, 12AX7A, 12AX7M, 12AX7WA/WB/WC/LPS/EH, 5751, 7025, CV492 and CV4004
equivalent (same built) for MESA® SPAX7-A
DISTINCTION from RT093-HG 7025WB and RT030 7025 / E83CC HIGHGRADE:
Compared to the RT030 and RT093-HG, the RT010 has a smoother overall responce and better linearity qualifiying for natural clean tones and relaxed HiFi audio listening. The RT093-HG shows a little more edge in the high-mid range. As a result, it asserts itself tonally very well, which makes perfect sense in a band structure.
RT030 is emphasising the midrange a bit more and thus brings more warmth and a little less brilliance and depth definition than the RT010 and RT093-HG.
Due to their tonal structure the RT093-HG and the RT030 are even less prone to microphonics than the RT010 which qualifies these for use with extremely microphonic-critical amps.
The RT010 has the lowest floor noise of these 3 which might be espicially important for use in tube microphones and audio system input stages.
HIGHGRADE SELECTION
But only those tubes which pass these tests best are labeled Highgrades.Typically this is approx. 3-10% from a production batch that qualifies for the HIGHGRADE rating from TAD.
Due to the very high selection requirements, this article is temporarily only available to a limited extent! Please note our shop-information on availability.
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 and all stereo applications.
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: |
Highgrade |
|
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 |
| JJ ELECTRONICS TAD EL34-4 Λυχνία ενίσχυσης 4 MATCHED-ΤΕΤΡΑΔΑ
The TAD JJ EL34 Quartett Matched Tubes
EL34 is an octal power tube with a maximum plate power of 25W. Very robust and reliable due to its internal construction.
The JJ Electronic EL34 is another classic from JJ.
This tube features a rugged construction leading to an incredibly reliable EL34 with astonishing tone.
Overall the sound is nicely balanced with tight lows, a rich and dynamic mid range and clear highs.
The JJ EL34 is a great replacement for guitar amplifiers and stereo amps.
- 6CA7, E34L, EL34 Equivalent
- Made In Slovak Republic
Base: OCTAL
uf = 6,3 V
I f = 1,5 a
Typical Characteristics:
ua = 250 V
ug3 = 0 V
ug2 = 265 V
ug1 = from -10 to -13,5 V
(for eL34)
from -13,5 to -16,5 V V
(for e34L)
I a = 100 ma
I g2 = 14,9 ma
S = 11 ma/V
R i = 15 kΩ
μ g2/g1 = 11
Limiting Values:
ua0 = 2000 V
ua = 800 V
W a(max) = 25 W
ug20 = 800 V
ug2 = 450 V
W g2(max) = 8 W
I k = 150 ma
uk/f = 100 V
R k/f = 20 kΩ
Capacitances:
c g1 = 15,5 pf
c a = 10 pf
c a/g1 = 1,3 pf |
Λυχνία ανόρθωσης.
The Bugera 5U4 Rectifier Preamp Tube delivers the unique distortion, tone and warmth associated with the coveted Rectifier guitar amplifier. The 5U4 is ideal for both medium and high powered amplifiers due to its low heat dispersion. The tube easily replaces any tubes installed in Bugera guitar amplifiers.
Product Highlights - Replacement Tube For Bugera Amplifiers
- Ideal for Medium and High Power Amps
- Low Heat Dispersion
| Περιγραφή
Tung Sol 12AX7 / ECC83
Εξαιρετική προενισχυτριά διπλή τριόδα υψηλού Gain (συντελεστής ενίσχυσης) χαμηλή σε μικροφωνισμούς με μεγάλη, ζεστή χροιά και μουσικό χαρακτήρα. Η απόδοση της ξεπερνά τις πρωτότυπες NOS σε όλα επίπεδα.
- Βελτιωμένη επανέκδοση της Vintage NOS Tung Sol 12AX7
- Εξαιρετική γραμμικότητα με δυναμικό 3-D ήχο
- Προτιμάται από τους τεχνικούς για αντικατάσταση αλλά και αναβάθμιση, κατάλληλη και για εφαρμογές HiFi
- Αντίστοιχη των 7025 / ECC83
- Made In Russia
Άρρηκτα συνδεδεμένες με την ποιοτική κατασκευή, οι Λυχνίες Tung Sol ήταν πάντα γνωστές για την αξιοπιστία τους και τον εξαιρετικό τόνο τους. Οι σημερινές Λυχνίες Tung Sol κατασκευάζονται με τις ίδιες προδιαγραφές. | These are the gold pin version of the standard ECC83. These tubes are immediately discerni-ble from other 12AX7. They have a construction that is similar to a frame-grid tube - similar to the Telefunken ECC803s. This construction makes them very rugged and reliable. This is one of the best new 12AX7 for any guitar amp. It is very musical - rich with great harmonics. An excellent tube in all Marshall amps in the three preamp positions.
Factory selected tubes with gold pins. These tubes provide high gain without the usual noise and microphonic problems you would expect. This is great sound and value for your money.
ECC83S is 12AX7 high gain pre-amplifying double triode. Thanks to its design it also peforms with very low noise and microphonics. Harmonically rich, with a detailed low end and a warm high end.
12AX7/ECC83/7025 / 9Pin Socket Noval |
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