Audio pentode intended for use in preamplifiers, guitar amplifiers and hi-fi output amplifiers. Low noise and low hum like it’s predcesors octal type EF37A and rimlock type EF40. EF86 / 6267 was introduced in 1955 and has noval B9A base.

 

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  1. J. Geelen

    What are the costs for 2 pieces of Siemens NOS EF86

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