JJ ECC83s (12AX7) Gold Pin

This is the Gold Pin version of the JJ ECC83s (12AX7)

They are well balanced and harmonically rich, great for guitar & hifi amps alike. 

These are tested on specialised digital and analogue testing equipment by Karltone as follows  

• Gain (A)
• Transconductance (gm)
• Noise (dbv)
• Microphonics
• Emission Quality
• Grid Leakage
• Shorts