TAD 6550A-STR BLACKPLATE™, Premium Matched

Preview: RT781 Einzel (1 selektierte Röhre)

RT78 TAD 6550A-STR BLACKPLATE™, Premium Matched

From €92.00 *

In Stock, delivery time approx.1-4 working days (Within Germany)
The delivery times for shipping abroad can be found here.

Part Number: RT781
Packaging Size: 6x6x15 cm
Packaging Weight: 0.08 kg
UPC: 4251594905110

BLACK IS BACK ! The TAD BLACKPLATE™ Series is in production again! ... more

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Product information "TAD 6550A-STR BLACKPLATE™, Premium Matched"

BLACK IS BACK ! The TAD BLACKPLATE™ Series is in production again!

The all-new TAD-tubeline - the BLACKPLATE™ - show a top performance because of a very stable thermical heat dissipation resulting in brilliant longevity. Tonally, you can expect a sweet breakup, warm and musical mids with an overall NOS-character, following and paying hommage to the legendary designs of the golden age of tube manufacturing.

Due to the closure of the tube factory in 2019, the TAD Blackplate Series was no longer available for several years. In the new production facility, these tubes have been manufactured again from old stocks of raw materials since January 2024 and are therefore available again as long as the original materials last..

Tested, selected and matched by TAD in Germany!

TAD BLACKPLATE™

characteristics:

⦁ very detailed and defined tone

⦁ natural and relaxed sound characteristics

⦁ lively portrayal of voices

⦁ perfect for complex and three-dimensional sounds

⦁ consistent thermal operation

⦁ long tube-life because of stable heat dissipation

The newest upgrade-alternative for any 6550 application!

Tube Type:	6550
Selection:	Premium

Documents...

Available downloads:

Download TAD-Datenblatt_6550A-STR-BP-1.1

Safety information...

Responsible person for the EU

Economic operator established in the EU, who ensures that the product complies with the required regulations:

Tube Amp Doctor Musikhandels GmbH

Weinbrennerstr. 1

67551 Worms

shop@tubeampdoctor.com

www.tubeampdoctor.com

Danger:

Tubes are made of glass and are therefore fragile. Tubes can become very hot and are generally operated with high or very high voltages.

Improper installation, use and handling can lead to serious or life-threatening injuries and/or damage to the products.

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Here you will find the most important information about the matching of our tubes more

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Information about TAD Matching

Here you will find the most important information about the matching of our tubes

When does a tube become a Premium Selected tube?

Power tubes

All power tubes labeled Premium Selected have passed the following tests:

- Plate Current (PC) and Amplification (TC)

- Low Noise Test

- Microphonic Test

- Sonic Tests

- Shock Tests

- Listening Tests

- Shorts & Leakage Tests

- Deep-Drive & Soak Test

Premium RT-Matching of Power Tubes

Our Premium Matching is an exact matching of power tubes with identical Plate Current (PC) and Transconductance (TC).

TAD Premium Selected tubes are guaranteed for a period of 12 months (according to terms of warranties)

for the quality criteria mentioned above.

Preamp 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

- Balance 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

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.

TAD Premium Selected/Highgrade tubes are guaranteed for a period of 12 months (according to terms of warranties)

for the quality criteria mentioned above.