Tesla / PCC88-TESLA

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Tesla started production in 1922 under its original name of Radioslavia Ltd in Czechoslovakia. It has a long history of manufacturing high quality transmitting valves and defense equipment. The Tesla factory was known for making some outstanding valves. The Original EL34 better in terms of microphonics and reliability than the famous Mullard EL34, hence Marshall used the Tesla EL34 from the mid 1970ís onwards. The frame grid E83CC was due to its construction the most expensive of it type to produce. Still to this day it is one of the best sounding ECC83/12AX7 types ever made. These are just a few of an endless list of pioneering valves produced by this great Czechoslovakian factory that sadly is no longer with us.
Original Tesla PCC88 made in Czechoslovakia has many sonic and reliability advantages over the ECC88, 6922, 6DJ8, E88CC family of valves.

Tesla PCC88 has a clear and extended bass response and offer exceptional performance for low cost. These have been used as a replacement for the ECC88, E88CC and 6922 family of valves. The only difference is the PCC88 has 7 volt heater whereas the ECC88 & 6922 family of valves has a 6.3 volt heater. So the valves are totally interchangeable.

A problem that is widely reported on the internet that many people have had with American high end amplifiers such as Conrad-Johnson. These amplifiers run the heater voltages on the ECC88 6922 in excess of the 6.3 volts. This causes the valve to go noisy after around 200 hours use.

The PCC88 having a 7 volt heater in this application gives extended life and the same Audio performance. They are also cheaper than their 6.3 volt rated brothers.
So it is simple win all the way round.

The Tesla PCC88 has the same sonic signature as the ECC88 & E88CC but at over half the price is a super bargain.

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