Mullard GZ34 / 5AR4 Rectifier Vacuum Tube

1 Review

Availability: Usually ships within 24 hours.

USD $‎55.95

The classic Mullard GZ34 rectifier tube has always been a favorite and is the most sought after version. The reissue is now available with the same great performance without the high price that NOS Mullard GZ34 vacuum tubes command.

GZ34 is the European name for the 5AR4 and is compatible with any circuit using a 5AR4 tube.

Other Mullard tubes5AR4 Tube Types

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

1 review

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Great audio rectifier!


I use this in my Line Magnetic 518ia audio integrated amp. Combined with a new pair of drivers the overall sound is smother, tighter (more grip on bottom end), and with better resolution. Gone is the stock tube's tendency to sound glassy and boomy.