NOS Mullard/Valvo GZ34 (5AR4) Vacuum Tube
The NOS Mullard GZ34 (5AR4) vacuum tube is considered by many to be one of the best GZ34 rectifier tubes ever made. Our current stock is branded Valvo (see photo). These tubes were produced in the 1960's at the Mullard Blackburn factory in Great Britain. Tube has a double halo getter, hole in guide key, and notched plates.
Other NOS Treasures
5AR4 Tube TypesWarranty 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.