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Vacuum Tube - 5AR4 / GZ34, JJ Electronics

Vacuum Tube - 5AR4 / GZ34, JJ Electronics image 1
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Customer image:<br/>"JJ GZ34 in a Dynaco ST70 amp"
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Customer Images:
Customer image: "JJ GZ34 in a Dynaco ST70 amp"
Item ID: 004554
Price: $15.95
In stock
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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.

UPC/EAN: 844632064074

RoHS Compliant

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Specifications, Files, and Documents

Product Reviews

4.83 out of 5 based on 12 reviews


5 out of 5

Excellent choice for my vintage Princeton Reverb

- March 8th, 2019
5 out of 5

Great service and communication.

- January 29th, 2019
3 out of 5

I purchased this tube (GZ34S) in for use in a Dynaco ST-70 I rebuilt. It worked great for about 5 weeks then I accidentally hot switched the amp and the rectifier promptly flashed over internally. Yes, this is my fault but upon examination of the tube under the magnifier the cathode and plate connections on one side were just too close to each other.

I rated the tube a 3-star for product construction, perhaps this is too harsh but darn it...

On the other hand, I am very happy this was only a $15.00 tube! I would buy it again, especially for trying out new constructions and first time power up.

- December 20th, 2018
5 out of 5

I must agree with others who used these rectifiers. The price is right and you get more for your money than other choices. I am using them in a pre-amplifier that used 27's and 8 red LEDs for cathode bias and outputs to a 245 amplifier via 10K interstage transformer and I think they contribute to the smooth sound this gives me.

- May 24th, 2018
5 out of 5

JJ Electronics 5AR4/GZ34. Great quality! Brought my 1965 Fender Super Reverb amp back to life.

- April 16th, 2018
5 out of 5

The JJ GZ34 has a lower voltage drop than most 5AR4 tubes. Very good value for the money.

- April 10th, 2016
5 out of 5

Works great and will buy it again.

- March 20th, 2016
5 out of 5

Nice reliable rectifier.........

- April 19th, 2015
5 out of 5

I re-tubed a modified Fender Deluxe that was becoming noisy. I gig a lot and it had been awhile since the tubes were replaced. With the new tubes the amp is much quieter. Thanks.

- February 12th, 2015
5 out of 5

I've learned that the total tone characteristics is changed by using different rectifier.
SOVTEK gives me darker color. And This JJ gives me more highs which leads brighter color of tone.
Reliability is almost the same as Russian one but better than Chinese ones.

- September 28th, 2014


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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.