Mullard GZ33
A full wave rectifier with a rating of 500 Volts for the anodes. The GZ33 is a high current version of the GZ32 and GZ34 and is rated at 250 mA rectified current. Made in Great Britain, 1960's.
Other Mullard tubes 
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.
Ratings & Reviews
1 review
Mullard GZ33 | Fantastic
by Paul
The MU-GZ33 is every bit as good as a GZ34 if your amp takes one of these, and Mullard is always the answer.