1973 Amperex ECC83/12AX7 Tube Halo Getter GB Blackburn Tests Good EX Logos
USD 59.00 USD
Specifications
| Brand | Amperex |
| Type | Preamp Tubes |
| Model | 12AX7, Halo Getter |
| MPN | ECC83 / 12AX7 |
| Country Of Origin | Great Britain |
The B&K 707 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. New 12AX7 normally tests 32 and above. See photos for test results.
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