null
Telefunken

New Matched Trio (3) Telefunken Black Diamond 12AX7 / ECC83-TK Gold Pins Vacuum Tubes

(No reviews yet) Write a Review
SKU:
NP180-3
UPC:
899051002497
MPN:
12AX7
Shipping:
Calculated at Checkout
$190.42

Description

New Factory Matched Trio of Telefunken Black Diamond ECC83-TK (12AX7) Vacuum Tubes

A well-balanced tube suited for all types of music and playing styles. Designed to allow for cleaner headroom than higher gain 12AX7s when pushed into overdrive, it offers distortion with strongly defined lows, a rich mid range, and clean / smooth highs. Gold clad pins.

Will work in place of: 12AX7, ECC83, 12AX7A, 7025, CV4004, ECC803S

Testing and/or Matching

At VIVA TUBES, all of our customers get the same high standard of testing and matching. Some sellers charge more for premium matches but we believe all of our customers should get the same level of quality and service. 

Tubes are tested and/or matched at full operating voltage with regulated power supply on a Maxi Matcher tester for general mutual transconductance (Gm). In addition, power tubes are tested/matched by plate current (Ip) and preamp tubes are tested/matched by gain. Rectifier tubes will be tested for emissions on a calibrated military grade tube tester. 

Our goal is to match within 5% with an upper limit of 15% (15% is the industry limit to consider a set).

Hand written test data included.

Note that we do offer a few models which are tested & matched at the factory. They will be matched by the same parameters (Ip & Gm) but to the manufacturer's standards. Factory testing will be indicated in the item title and description. 

Guarantee

We offer a minimum 90 day guarantee covering functional defects - including noise unless otherwise stated. The guarantee period begins the day you receive your order.

View AllClose
a { text-decoration: none; }