6AQ5

The 6AQ5 is a miniature 7-pin output pentode. The ratings are very similar to the 6V6 at 250V and is commonly used as an output audio amplifier in tube TV's and radios. It is also known under its Mullard-Philips tube designation EL90. A version of the tube with extended ratings for industrial application is designated 6AQ5A and 6005W.
Other close or equivalent tube types are: 6HG5, 6HR5, N727, CV1862 and the Tesla 6L31.
Also see 6V6 and 6P1P. Note: The 6P1P has a 9 pins and will NOT fit the 6AQ5 7 pin base.

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