Electro-Harmonix 12AY7/6072A EH
The 12AY7/6072A EH is a small signal, twin triode tube.
Almost all Fender Tweed-Era amplifiers used the 12AY7 in their first preamp stage. If you own a later model Fender with a 12AX7 in the first preamp stage, you can replace it with the 12AY7 EH to capture the signature tone of a Tweed-Era Fender.
The lower mu factor of the 12AY7/6072A EH is also designed to spread the sweep of the gain and volume controls. The higher transconductance and linearity of the tube are designed to make the response touch sensitive and expressive.
The 12AY7/6072A EH can also be used in later model Marshall amplifers to lower the background noise of the preamp and get the gain structure closer to Plexi and early 1970s Marshalls.
Pricing & Availability:
The 12AY7/6072A EH is available for $14.
For more information: ehx.com
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