6V6GT-STR TAD PREMIUM Matched
TAD 6V6GT-STR (aka. 7408 / 6V6GTY) PREMIUM tube
We recommend the TAD 6V6GT-STR for all 6V6 applications where a powerful but sweet tone is desired; especially with Fender Deluxe Reverb, Princeton Reverb, Tweed Deluxe 5E3 amp models, the Fender Champion 600 and the Marshall® Haze 15.
Also known as: 7408 & 6V6GTY
6 Month Limited Warranty against Manufacturing Defects
Finally in production after 3 years of intensive research.
This all new TAD 6V6GT-STR combines the exceptionally sweet characteristics of the NOS 6V6GT by RCA or of the GE 6V6GTY. It is a heavy duty 6V6GT tube, which can handle a higher plate current.
This TAD 6V6GT-STR caters for a detailed and powerful tone and an abundance of sustain; characteristics you would only expect from the finest NOS 6V6GTs from the 50s and 60s. Even when pushed into saturation there are no harsh upper mids, which is frequently the case with other 6V6s. Sweet full-bodied tone with silky highs.
We recommend the TAD 6V6GT-STR for all 6V6 applications where a powerful but sweet tone is desired; It works great in amps like the Fender -Tweed- Champs, Deluxe Reverb Amps, Vibro-Champ, Fender Champion 600 or the Univalve. This is also the perfect choice as a reverb driver for the Vibrokings and Dual Professionals.
Q: When does a power tube become a Premium Selected power tube?A: 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
TAD does all TAD Tube quality control processing in-house under strict control of their technical staff. Their techs which are also musicians and guitar players, developed and constructed their custom tube testing systems and aging rigs to run tubes in real amplifier circuits and operation conditions.
For TAD, real tube quality control is way more than just a simple test. Before a TAD Tube gets accepted at all the techs perform extensive sample evaluation testing for consistency, power test, shock resistance test, soak test (long term operation at full power) and of course a musical test in known amplifiers to learn about its sound character in different styles. The main tests are made after a proper pre-aging to stabilize the cathode emission. While most tube test equipment does work at 250V as a maximum TAD built their test rig to operate at voltages of 360 to 600V depending on the tubes being tested. Every TAD Tube is tested by their qualified staff. Each pentode is inspected and tapped while operating and listened for noise floor, hum and odd noise.
Finally measured for a set of parameters and matched by Ia (PC) and Gm (TC). TAD tests batches of 400 to 500 pieces per run to allow tightest tolerances of typically 0.5mA for PC. All TAD Tubes and boxes get labeled with the PC and TC test results and a unique serial number to identify every tube they’ve ever tested. TAD techs permanently verify and monitor selected and matched TAD Tubes by using them every day in their own amp service department and in the TAD Amp Kits they assemble. This is the most complete quality control system they can imagine.
All done in-house at TAD in Germany