Amperex 12AX7 Bugle Boy Tube Holland Heerlen Δ4K4 B&K 700 & B&K 606 Tested
USD 59.00 USD
Specifications
| Brand | Amperex |
| Type | Preamp Tubes |
| Model | 12AX7 Bugle Boy Heerlen |
| MPN | ECC83 |
| Country Of Origin | Netherlands |
The B&K 700 operators manual states the minimum/good range for a 12AX7 tube is a reading of 22. A reading of 22 is equivalent to 60% Gm. See photos for test results.
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