4.5 out of 5
JJ ECC83 / 12AX7 Vacuum Tube
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Product Description
Manufacturer Part Number: ECC83S
The Czech/Slovak heritage of superior industrial craftsmanship continues with the new line of Tesla tubes. All tubes are new in their original box.
JJ ECC83 / 12AX7 Vacuum Tube
The Czech/Slovak heritage of superior industrial craftsmanship continues with the new line of Tesla tubes. All tubes are new in their original box.
The Czech/Slovak heritage of superior industrial craftsmanship continues with the new line of Tesla tubes. All tubes are new in their original box.
JJ ECC83 / 12AX7 Vacuum Tube
The Czech/Slovak heritage of superior industrial craftsmanship continues with the new line of Tesla tubes. All tubes are new in their original box.
Product Details | |
|---|---|
| Brand | JJ Electronic |
| Model | ECC83S |
| Part Number | 072-547 |
| UPC | 844632022081 |
| Unit of Measure | Each |
| Weight | 0.2 |
Product Specifications | |
|---|---|
| Matching | Single |
| Tube Code | 12AX7 |
| Tube Type | Preamp Tubes |
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Customer Reviews
By steve
Date: November 12, 2017
Loaded two of these into my AC4C1-BL 10 inch combo to replace the factory Chinese tubes after having run them for a few years. When I did I immediately got a scratching noise from the volume pot on my guitar that was very noticeable. I tried the same guitar with my other amps and there was no noise. Weird. I tried swapping the JJ preamp tubes around thinking that maybe just the tube in V1 was 34;bad,34; but no luck -- scratching still there. I removed the JJs and put the Chinese factory tubes back in and all was quiet again. I tried the JJs again and the scratching was back. After some searching I discovered that JJ preamp tubes 34;leaking DC34; into the input pin is not uncommon and could lead to scratchiness in the volume pot of your guitar. Both of the tubes I got exhibited this problem -- I tried swapping V1 and V2 -- so I can say that it's not rare. I wanted to like them but the problem they caused made them a non-started for me.
Rating: 
[2 of 5 Stars!]
[2 of 5 Stars!]
By Rogerio Pereira
Date: May 02, 2017
Physically the vacuum tube is exactly like my previous one, it fits. But the gain is way low, I can not get pre-amp overdrive distortion with this one. Sounds always clean even with pre-amp volume all way up
Rating: [2 of 5 Stars!]
[2 of 5 Stars!]
By Christopher Hebb
Date: April 28, 2017
I noticed the getter turned white and there was a crack in the base after plugging and unplugging it only twice. Lost all its vacuum and is worthless. The tube that was in the amp originally lasted 25 years of abuse and this one junked out after three days. Tone was pretty flat and neutral when it worked. Meh, try Tung-Sols instead of these.
Rating: [2 of 5 Stars!]
[2 of 5 Stars!]
By Critchks
Date: January 12, 2017
Well, these tubes lasted from late September to beginning of January. Not too impressed on the longevity, but they did sound good when they worked.
Rating: [2 of 5 Stars!]
[2 of 5 Stars!]
By wellmaybe
Date: December 25, 2016
I have a Jolida FX10 that had microphonic tubes. I wasn't sure whether it were the EL84EH or the Tung-Sol 12AX7--so I bought all the replacements from JJ Electronics. Turns out, it was one of the EL84EHs that was faulty, and so I got to do some preamp tube A/B testing with Tung-Sol and JJ Electronics Tung-Sol was an obvious winner. It gave the sharp and bright highs and pronounced mids with quality that puts music in my head. JJ's highs were ear-piercing, and it was more than lacking in mids. Obviously disappointed, but I'm glad my old preamp tubes are fine. I may contact JJ Electronics about this, in case I received faulty tubes--but even with all the negative comments, I like them enough to keep them as cheap backups, FWIW. Not related to the product, but on a related note, I replaced the EL84EHs with JJ Electronics T-EL84-JJ-MQ, which work fantastically with the Tung-Sol 12AX7.
Rating: [2 of 5 Stars!]
[2 of 5 Stars!]
Items 1 - 5 of 5 reviews
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