TAD (Tube Amp Doctor) 6L6 GC-STR Red Base 2020 - None

Matched Quad TAD Premium 6L6GC-STR Red Base - Brand New

Purchased from Thomann as a replacement set for my ENGL 840/50, which was sold before the tubes were ever installed.

The tubes are therefore:

✅ Brand new
✅ Never installed
✅ Never used
✅ Stored in original packaging

A highly regarded 6L6 tube set with TAD's renowned matching and quality control.

With the purchase of the brand-new matched quad of TAD Premium 6L6GC-STR Red Base tubes, I will include a second "mixed" quad consisting of 2 ENGL 6L6 tubes and 2 TAD Premium Red Base tubes at no extra cost.

This second set comes from my ENGL 840/50 and can be useful as a backup, spare set or for testing purposes. It is simply included as a bonus for someone who can make good use of it.

Carefully packed shipping available.

🎁Bundle Offer

For users running 6L6-based tube amplifiers, I also offer a special bundle deal including both the TAD BiasMaster and the matched quad of TAD Premium 6L6GC-STR Red Base tubes.

This gives you:

• a brand-new premium tube set,
• the proper tool needed to adjust bias after installation.

A convenient turnkey package for maintaining and retubing your amplifier.

Feel free to contact me for the bundle price 🤙