-40%
1 x NOS Siemens EF40 ~ EF86 Test V.STRONG DU L9B Metal base Pentode Vacuum Tube
1 x NOS Siemens EF40 ~ EF86 Test V.STRONG DU L9B Metal base Pentode Vacuum Tube
1 x NOS Siemens EF40 ~ EF86 Test V.STRONG DU L9B Metal base Pentode Vacuum Tube
1 x NOS Siemens EF40 ~ EF86 Test V.STRONG DU L9B Metal base Pentode Vacuum Tube
1 x NOS Siemens EF40 ~ EF86 Test V.STRONG DU L9B Metal base Pentode Vacuum Tube
1 x NOS Siemens EF40 ~ EF86 Test V.STRONG DU L9B Metal base Pentode Vacuum Tube
1 x NOS Siemens EF40 ~ EF86 Test V.STRONG DU L9B Metal base Pentode Vacuum Tube

1 x NOS Siemens EF40 ~ EF86 Test V.STRONG DU L9B Metal base Pentode Vacuum Tube

$ 51.75

  • Brand: Siemens
  • Country/Region of Manufacture: Germany
  • MPN: 279
  • Model: EF40
  • Type: NOS Tube

Description

eBay NOS SIEMENS EF40 Price is for 1 NOS tube in box. Made in Germany in the mid-1950s. Stamped codes on the metal base is DU L9B. With D-getter. Tested VERY STRONG as follow: Ia = 3.7 mA | S = 2.1 mA/V Tested under: Uf = 6.3V | Ua = 250V | Ug2 = 140V | Ug1 = -2.0V Where 100% is Ia=3.0mA and S=1.9mA/V GREAT EARLY TYPE TUBE. VERY DESIRED! Shipping will be Airmail registered with tracing number. Other shipping methods available on request.