FOR SALE

  Valvo 18042 Vacuum Pentode Tube .

  • Noval B9A

  • The 18042 is a special quality pentode designed for use in telephony systems. The life quoted is 10,000 hours 

Tested on AVO 160 tube tester with:
Uf: 18 V

Ua: 200 V

Ug1: - 1.8 V

Ug2: 100 V

Result: Ia = 11 mA  (8.3 = 100 %)

               S = 9.5 mA/V (8.2 = 100 %)

            

     

  • All our tubes are tested for shorts and gas leak.

    Feel free to visit my store yourtubes for more vintage tubes

  • Items will be carefully packed to ensure save arrival.

  • Thank you for checking the other listings.

  • We ship usually within one day after payment.