Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling Copper Support Rods 6V6GT Silver Top Tube One measured 43 while

Tube One measured 43 while Tube Two measured 45 where minimum (65%) is 27

They measured (from left to right): 56

6 dB / -82

These eleven new old stock

Tube One drew 24

Matched Pair General Electric GE 12BH7 12BH7A Vacuum Tubes 12AU7 Substitute For Tube Rolling Copper Support Rods 6V6GT Silver Top Tube One measured 43 whileThis matched pair of GE 12BH7AA dual triodes was tested on our Maxi Preamp II for shorts, gas, noise and gain. There were no shorts, noise or gas and they tested as follows: Tube One: Gain (Mu (): 15. 6 15. 7 (16 is new nominal) Tube Two: Gain (Mu (): 16. 2 15. 4 These take a little more current than 12AU7s, so please be sure your device has some juice to spare. These tubes have copper support rods, six additional cooling holes per plate and