Vacuum Tube - 7025, Tube Amp Doctor, High Grade

Vacuum Tube - 7025, Tube Amp Doctor, High Grade

Tube Amp Doctor (TAD)
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$30.95
In Stock

Warm, clean tone with creamy overdrive!

PREMIUM selected quality for the most demanding amp stages. This tube works greatly for warm clean tones and creamy overdrive. We recommend this tube for the 1st gain stage and as input tube. It upgrades 12AX7A and ECC83 tubes and replaces E83CC tubes.

The HIGHGRADE Selection is the tip-of-the-top quality at the lowest noise (microphony, hum, hiss) level. Typically only 0.5-2% out of the whole production of this tube meet the HIGHGRADE requirements.

The TAD 7025 Highgrade can replace any ECC83, E83CC, 12AX7, 12AX7A, 12AX7M, 12AX7WA/WB/WC/LPS/EH, 5751 or 7025.

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

SKU:
T-7025-HG-TAD
Item ID:
039893
UPC/EAN:
841358108884
Tube Amp Doctor Part Number:
RT010
Brand:
Tube Amp Doctor (TAD)
RoHS Compliant
Product Measurements by Type
Body Height59 mm
Bulb Temperature160°C
Cathode Current (Ik)8 mA
Cathode to Heater Voltage≤ 150 V
D.C. Grid Voltage, negative-55 V
D.C. Grid Voltage, positive0 V
D.C. Plate Voltage330 V
Grid to Cathode Capacitance (cg/k)1.7 pF
Grid to Heater Capacitance (cg/h)0.2 pF
Grid to Plate Capacitance (ca/g)1.5 pF
Heater Current0.15 / 0.3 A
Heater Voltage6.3 / 12.6 V
Item Diameter22.5 mm
Item Height56 mm
Plate Dissipation (Wa)1.2 W
Plate to Cathode Capacitance0.3 pF
Packaging Information
Packaging Dimensions3.25 in. × 1 in. × 1 in.
Weight (Packaging)0.038 lbs.

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Specifications, Files, and Documents

PDF: Specification Sheet Specification Sheet264.36 KB

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Product Reviews

5.00 out of 5 based on 2 reviews
- July 22nd, 2021
5 out of 5

This is the best of the best TAD 12AX7 and it is indeed very quiet and musical. It's being used in a multiple gain-staging arrangement for high gain distortion in the preamp section where noise and microphonics is a definite concern (it's also a combo amp so there's that). The tube sounds great, very happy with purchase. As always, AES at the top of their game with quick and careful shipping.

- June 25th, 2020
5 out of 5

I like this in V2 of my Reeves 225.