Tube Amp Doctor ECC83-Cz, Premium Selected High-Mu Twin Triode
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TAD ECC83-Cz High-Mu Twin Triode
The TAD™ ECC83-Cz is a miniature, high-mu twin triode with good gain, round deep
bass, somewhat compressed mids and very smooth top end. Selected and
recommended for guitar amps to smoothen up the tone or for HiFi to shape the body
of sound more to “that” tube tone. Best for jazzy and thick clean as well as for vintage bass response.
Recommended for all positions in amps with medium gain level or High-Gain Amps for
V2+ positions. As for V1 in general but especially for higher gain amps or
phono/audio-amps, we recommend the RT030 7025/E83CC Highgrade
or our new RT080 7025WA Highgrade.
The TAD™ ECC83-Cz can replace any 7025, 12AX7WA, 12AX7WB, 12AX7LPS,
12AX7EH, ECC83 or E83CC.

Q: When does a preamp tube become a Premium Selected tube?

A: All preamp tubes labeled Premium Selected have passed the following tests:
- Low Noise Test
- Microphonic Test
- Gain Test
- Sonic Tests
- Shock Tests
- Listening Tests
- Balanced Output Test

Matching and Selecting Options for Preamp Tubes
Matching in Pairs for preamp tubes means that two tubes show identical gain, hence, four characteristically identical systems.
This matching method includes our Balance-Selection. We highly recommend this matching method for hi-fi systems.

TAD Premium Selected/Highgrade tubes are guaranteed for a period of 6 months (according to terms of warranties)
for the quality criteria mentioned above.

Data sheet:

Feel Free to ask any questions

Terms and conditions: If for any reason you are not 100% satisfied with your purchase you can return it to us within 14 days and a full refund will be provided. Buyer assumes responsibility for return postage.
Potentiometers and other electronic soldered components must be returned in an un-used, un-soldered state and in the original packaging

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East-West Guitars 
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Ballaghadereen, Roscommon
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2 months ago

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2 weeks
@GabrielTrevisan Hi Gabriel, I think you would want a high-grade matched pair for that application. I think you'd want to select a tube which would give higher clean headroom. This will be a special order though. Can you contact me direct through the East-West Guitars website and we can chat further about it?
2 weeks
Hi Dear!

I’m looking for a pair matched tube 12AX7, for a mastering compressor. I want to change my chinese valve on the art pro vla to a warmer and cleaner valve tube.

I heard that ECC83 would be good for it. Which more options do you have?