Lot of six used RCA 12BH7A vacuum tubes. Made in the USA. Orange label, various 2 letter codes (ex: AB). Some of the silk-screening and codes are heavy smudged and/or missing. All appear to have identical construction with gray plates and top "O" getters. I found these in a paper bag at a closed down audio repair shop.

Gm tested on my fully restored and recently calibrated B&K 707 tube tester. No grid emissions, gas, leakage or shorts. Test results (from left to right in the photos):

Tube 1: 82/88

Tube 2: 95/90

Tube 3: 86/87

Tube 4: 98/93

Tube 5: 98/101

Tube 6: 95/91

Plus, all triodes pass the Life Test. For reference, most NOS 12BH7A tubes test 90+ and the minimum "Good" is 65.

These tubes are in good condition with straight pins and varying degrees of label wear. Please view the photos for more details.

Free shipping to the US via USPS First Class.

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A tracking number will be provided upon shipment.

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