SIEMENS Scope Tube D3-II GJ NOS (Marantz 18, 19, 20)

1 (one) SIEMENS Scope Tube D3-II GJ, NOS/NIB, very rare!

Used in Marantz receivers and tuners 18, 19, 20, 20B. Immaculate. Sealed box, only opened for taking pictures.