MULLARD ECC83 12AX7 Tube Valve Tested Strong for Vintage Audio Preamp Guitar Amp

This listing is for one Mullard ECC83 double triode valve.

The valve features clean, fairly clear yellow print. It is supplied as found in plain cartons and has been dry stored for many years.

This item is listed under the condition "For parts or not working." However, historical test data for a pair of similar valves, conducted on a two-panel AVO valve tester for mutual conductance, is provided for reference. The recorded results were:

• Valve 1: Sections tested at 2.1mA/V and 2.0mA/V
• Valve 2: Sections tested at 2.0mA/V and 2.0mA/V

For context, the AVO manual indicates a reference figure of 1.6mA/V for an ECC83 valve testing at 100%.