R.F. DOUBLE TRIODE – ECC81 is 12AT7 medium gain pre-amplifying double triode. Can be also used as replacement for 12AX7 in many applications. Very smooth and warm sound. Very low microphonic. Good for phase inverters or reverb drivers.
JJ Electronic is a world-renowned manufacturer of vacuum tubes, electrolytic capacitors and high-end audio amplifiers. Founded in 1993 by Jan Jurco, a small garage business grew to become a well known and respected in music industry.
JJ vacuum tubes and capacitors are widely used in guitar and audio amplifiers, recording studio equipment and in a variety of applications for audiophiles.
We offer more than 35 preamp, power and rectifier tubes. All tubes were developed by our in-house research and engineering teams. In addition, we manufacture electrolytic capacitors for different voltages, both radial and axial types. Today, our manufacturing program also includes a number of high-end audio and guitar tube amplifiers. All of our products are the result of diligent research in the audio field and its continual application into manufacturing.
We are proud of the fact that every component used in our vacuum tube production is manufactured in-house. This enables us to have complete quality control of every part of the manufacturing process. All materials used in tube and capacitor production undergo a meticulous cleaning process such as ultrasonic cleaning, annealing in protective atmosphere and reactive rinsing. The assembly process is carried out by a combination of meticulous manual operations and state-of-the-art production processes.
All vacuum tubes and capacitors go through an extended burn-in period to ensure superior stability. A rigorous final test for tubes and capacitors verifies every important parameter. In particular, the parameters for flawless tube functioning include insulation characteristics, vacuum level, cathode emission efficiency, filament voltage, plate currents, and microphonics. The quality control process includes several thousand hours of reliability testing on samples of tubes and capacitors.
By using our tubes and capacitors in our own line of audio amplifiers, we continually verify their quality and performance in the practical applications.
Prompt Shipping and Professional Packing
We have a range of shipping options because of our long-term relationship with UPS FedEx DHL. Our warehouse employees will pack each item according to our strict requirements. Before shipment, all items will be thoroughly examined and safely secured. We deliver to thousands of customers each day from multiple countries. This is a sign of our determination to become the biggest online retailer on the planet. The warehouses are located situated in Europe in the same way as they are in USA.
Note: Orders with more than one item are assigned a processing time according to the item.
Prior to shipping Our team will conduct a thorough inspection on the items you purchased. The majority of orders are shipped within 48 hrs. Delivery is expected to take between three and seven days.
Returns
The stock market is always changing. It's not completely managed by us, as we're involved with several entities, including the factory and our storage. Therefore, the actual inventory could fluctuate at any moment. Be aware that it's possible for your order to run out of stock even after you've placed your order.
The policy is 30 days. If it's been more 30 days since you made your purchase and we're unable to offer you a full exchange or refund.
The item must not be used and in the original packaging. You must have the item in its original packaging.
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