JJ 5Y3S Rectifier Vacuum Tube

3 Reviews

Availability: Usually ships within 24 hours.

USD $‎23.95
Finally there is a current production 5Y3GT rectifier tube for your vintage tube amp! JJ Electronic's 5Y3-S vacuum tube is a drop in replacement for any 5Y3 tube type. It will perform like USA made 5Y3GT tubes, keeping your vintage amp's tone authentic.

Other JJ Electronics tubes5Y3 Tube Types

Additional Information and Downloads

JJ 5Y3-S Datasheet (PDF)

Download Adobe Acrobat PDF reader

Warranty Information and Return Policy

Warranty Period: 3 months

All 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.

Ratings & Reviews

3 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

JJ 5Y3S | Good rectifier


I've used this JJ-5Y3 rectifier interchangeably with the Sovtek 5AR4 (which has a slightly smaller bottle) for several years, and the B+ comes out nearly the same in either case. The JJ 5Y3 has been running in several of my amps (custom builds and vintage restorations) for several years now, and I have never seen or gotten a complaint of one failing. (To the reviewer, eb, who comments on the filament voltage being 5A vs. 6.3V: 5A is the common filament voltage for rectifiers; standard preamp and power tubes use 6.3V. That's why power transformers come with windings for both voltages).

Nice in 5E3


Just replaced an old RCA 5Y3 with this tube in a Fender Tweed Deluxe 5E3 amp. Sounds and feels very authentic. Solid.

Good Rectifier Tube


Used this tube in a 6L6 SE design and has been a good solid rectifier tube. I find the output of the tubes to average about 67% of the input. Only downfall is that they are designed for a 5V filament whereas 6.3 is a more common on power transformers.