┤An Old Radio Shop├ Quality vintage electronic components.

"It takes the original components to recreate that classic tone."

Stock: AA053

Condition: Tests strong

Brand: Telefunken

Type: ECC83 12AX7 premium "Selected Tube" low noise triode tube

Notes:

1. This have a glass fiber label adhered to each that reads: SELECTED TUBE.

2. This is a premium audiophile grade tube that was hand selected for Grass Instruments who manufactured and utilized these tube types in their medical equipment, so passed their stringent sonic and noise requirements.

3. With the fiberglass "SELECTED TUBE" label securely affixed to the tube when they were hand selected for Grass Instruments, these are the only version of these selected tubes that you can be 100% assured that they are 100% authentic.

Construction: 17mm Smooth gray plates with halo getters. Each has the embossed diamond at the bottom of glass.

Date Code: Code is covered up with the fiberglass label.

Measured Values: These were tested on a restored and calibrated Hickok 539B tube tester.

1050/1200 micromhos.

Minimum Acceptable Value:

875 micromhos for each triode section.

   • I combine shipping on multiple items. You may have to pay for your purchase first in some cases, whereas I will then refund you the combined shipping savings.