Telefunken W6 six-side-contact interface

Telefunken W6, used by RV12P2000 and MF6, has six peripheral side contacts and an insertion reference. The removable central knob assists handling and retention, not a seventh electrical contact. Identification requires comparing side surfaces rather than simply counting bottom pins.

One specified socket is Telefunken 1679, mechanical reference 024b D3602. Its body diameter is 26.2 mm, height excluding lower terminals 46.3 mm and overall height 53.8 mm. Fixing holes are 3.5 mm in diameter. These are female-socket dimensions, not valve-body dimensions.

Other RV12P2000 supports also existed, including flanged constructions. A common valve does not make every product's overall size, fixings and terminals identical. Model 1679 must remain specific; its dimensions do not apply to every W6 support.

RV12P2000 is a radio-frequency pentode used for amplification and detection. MF6 is another example of the same receiving interface. Valve function and wiring remain distinct from socket geometry.

W6 remains separate from WA6 and other military side-contact constructions. Identification requires the contact population, complete layout and key. Chassis-hole dimensions are not tolerances of the spring surfaces receiving the valve.