Valves
Cryo Valves
Kits
Speakers
Pedals
Amp Parts
Cabinets
Accessories
Mesa Boogie Replacement Valves / GZ34-SOVTEK AKA MESA GZ34 MESA SELECT TYPE 2
Click on image(s) above to view larger
All prices contained on this page are exclusive of VAT. This is currently charged at 20% and is payable by the UK only.
Watford Valves have been supplying specially tested valves for Mesa Boogie amplifiers for over 25 years. To help you maintain the sound we have now put a picture of the original factory item next to the Mesa label item to help you identify the valves in your Mesa.
Mesa normally gave a separate STR number to each valve which would normally indicate a different factory. Recently Mesa have given the same STR numbering to valves from different factories. To aid your identification we have given the valve a type number, type 1 type 2 etc.
What makes WV Mesa Select valve ?
Our matching process as stringent if not more so with valves matched on plus-or-minus 2 mA of current. Just like Mesa, valves that will reduce power or not be within the range of your amps optimum performance will not make the grade. Just like all Harma output valves our Mesa select valves also undergo our own unique real world burst testing. The burst testing process involves a series of varying timed electrical signal bursts. This runs the valves under the same stress conditions that they will meet in your amplifier. We have spent over 25 years helping Mesa owners maintain their amps factory sound without compromise on testing and selection.
The Mesa 5AR4/GZ34 Type 2 is the Sovtek GZ34 5AR4 which Mesa sourced from the Reflector/Sovtek factory in Russia. This valve can be identified by the rectifiers flat top, the anode plate structure has a serrated edge 6 staple holes in the each side of the plate, double supported getter and star ends mica top and bottom. It also has a smaller glass envelope than the JJ sourced item we call it type 2.Mesa normally gave a separate STR number to each valve which would normally indicate a different factory. Recently Mesa have given the same STR numbering to valves from different factories. To aid your identification we have given the valve a type number, type 1 type 2 etc.
What makes WV Mesa Select valve ?
Our matching process as stringent if not more so with valves matched on plus-or-minus 2 mA of current. Just like Mesa, valves that will reduce power or not be within the range of your amps optimum performance will not make the grade. Just like all Harma output valves our Mesa select valves also undergo our own unique real world burst testing. The burst testing process involves a series of varying timed electrical signal bursts. This runs the valves under the same stress conditions that they will meet in your amplifier. We have spent over 25 years helping Mesa owners maintain their amps factory sound without compromise on testing and selection.
So here you are buying a selected Sovtek GZ34 5AR4 which is not branded Mesa Boogie but has the original Sovtek markings selected by us to the same specs
We have been supplying specially selected valves for Mesa Boogie for over 25 years and have a huge library of their original factory source and test specifications.
To help you identify your valve we have put a picture of the Mesa valve against the factory item. So when you order a Sovtek GZ34 AKA Mesa GZ34 type 2 Select Russian Manufacture. You will receive a Sovtek GZ34 5AR4 that has been tested and specially selected to work perfectly in your Mesa Boogie.
Watford Valves Mesa Select rectifiers valves undergo our real world testing under the same stress conditions that they will meet in your amplifier. All rectifiers voltages are dual selected on forward and reverse parameters. This will ensure that you get the best selected valves available
Mesa Boogie says
The Mesa 5AR4/GZ34 Rectifier Tube produces a vintage feel with light to mild sag. While it produces more sag than Silicon Diodes, it is the least saggy of our tube rectifier offerings. Used in vintage MESA amps like the Heartbreaker, Blue Angel and Maverick
Watford Valves says
Our GZ34 5AR4 Mesa Select supplies the same feel, same compression, same performance as the original Russian made GZ34 which many customer have told us provides the best performance.
Tweet