7581A Tung-Sol (upgrades 6L6GC) single

This tube is built to the specifications of the 60 ′ Tung-Sol that were a benchmark for the 6L6 sound. The maximum power supported by this tube is 30W and the plate voltage of 500V, so it can be used in any current amplifier regardless of its specifications.

This tube gets the best clarity and cleanliness with the bias set around 50% and 60%. In this range we find a warm and full sound, ideal for the JCM900. By raising the bias above this range this tube becomes more "grumpy" in the Fender Tweed style. Depending on the amplifier and the sound you are looking for, we recommend experimenting with the bias ranges.

This tube works perfectly both in classic models and in more modern Hi-Gain designs.