Tesla EL34 (NOS) Power Vacuum Tube (Matched)
The rare NOS Tesla EL34 power tube was once the go-to power tube for Marshall guitar amplifiers. This EL34 tube has the double halo-style getter with welded plates and brown base. Our current stock was made around 1990 and has the “37” factory code indicating they were made by the Teslovak factory in Zavod Trinec, Czechoslovakia.
From Vacuum Tube Valley's Hifi performance review: “…the top performer in our EL34 test. It was obvious that Tesla used some of the original Xf2 Mullard tooling they received from Philips to make this tube. Tonal coloration was on the liquid and warm side. Dynamic range and frequency extension were both rated as excellent.”
From their guitar amp performance review: “This tube has assertive punch with good dynamic range. Crunch was strong and powerful with controlled break-up. Coloration was sweet, rich, and warm.”
EL34 Tube Types
Other NOS TreasuresWarranty Information and Return Policy
Warranty Period: 3 monthsAll our tubes are guaranteed for 3 months from the date of purchase. (Any exceptions will be noted on that tube's Warranty tab)
If you receive a tube that does not perform to the manufacturer's specifications, please do the following:
- contact us to get a return authorization
- return it via regular mail within 90 days from when we shipped it, and we will provide an exchange or refund of the full purchase price of the tube.
Returns not related to warranty or defect will be considered at our discretion, and are subject to a 15% restocking fee.
We can not accept returns that don't have an authorization, are past 3 month, or are returned improperly.
These guidelines may be updated without notice.