Vacuum Tube - 5AR4 / GZ34, JJ Electronics

JJ Electronics
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Vacuum Tube - 5AR4 / GZ34, JJ Electronics

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The JJ Electronic GZ34 / 5AR4 is rugged rectifier at a reasonable price. JJ has a reputation for building sturdy tubes and this one is no exception. Users report that the JJ GZ34 / 5AR4 is a reliable rectifier in their Vox, Fender, and hifi amplifiers.

Item ID:
JJ Electronics Part Number:
GZ34S - 5AR4
JJ Electronics
RoHS Compliant
Body Height79.0 mm
Filament Current (If)1.9 A
Filament Voltage (Uf)5 V
Item Diameter33.3 mm
Item Height93.0 mm
Packaging Information
Packaging Dimensions1.6 in. × 1.6 in. × 4.8 in.
Weight (Packaging)0.1058 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet460.63 KB
Questions? Contact us at [email protected], or give us a call at 480-296-0890

Product Reviews

4.40 out of 5 based on 5 reviews
wizard_factory - January 27th, 2023
5 out of 5

Great product. better price than any where else I looked. works great and good quality for the amount paid. will buy my tube from amplified parts.

stvvon - September 23rd, 2021
2 out of 5

I had put in completely new J&J tubes. Come to find out, the J&J rectifier Tube was constantly burning out my fuse. I found this out when I took my Orange amp into a, recommended by orange, amp repair site, technicians. They stated J&J isn't the best tubes for this amp. "Orange TC AD30 combo".
Also to be clear I brought the amp in for other maintenance issues and repairs after I replaced the tubes with a complete set of J&J Tubes. The Rectifier was noted after all other repairs were completed and the Rectifier tube was determined to be blowing out the fuses. He replaced it with a Sovtec tube

Jam Davidson - February 2nd, 2021
5 out of 5

I haven’t put in my tubes yet but the service, education and advice I received during my call to Amplified Parts will keep me coming back. It was my first time buying tubes and the salesperson made it super simple. They were also the only place that had all the tubes for my Sky King. Everywhere else I had to use multiple sites to piece together the order. Tube were shipped quickly and packaged well. Getting together the order for my Fargen Blackbird next.

Bubba J - January 11th, 2021
5 out of 5

This JJ 5AR4 works just like it should and Amplified Parts is the place I get my tubes because they are honest. Fast, accurate service is what you get here.

Jeffrey C - October 6th, 2009
5 out of 5

Who has the $$$ to buy an NOS 5AR4? I never realized how much a rectifier tube can effect tone. I have a SUNN 200S bass head that has been having some issues. I replaced the old Amperex 5AR4 with a JJ and now my amp is much louder and has more punch. Granted, I don't know if this tube will last 40 years in the same head, but it's good to know that there is a high quality rectifier being made today. Highly recommended!

Substitute Products

The following items can be substituted for this product. While not necessarily exactly the same, they will function as replacement items in your project.