Welwyn , Panclimatic Resistor, C21 Series, 50 Ohm, 0.25W,

Welwyn , Panclimatic Resistor, C21 Series, 50 Ohm, 0.25W,

Welwyn and Painton panclimatic resistor protected to DEF-5112.

Superb quality new old stock made by Welwyn, manufacturer type C21, checked within tolerance. Low noise and high stability makes them ideal resistors for use in audio electronics.

Pyrolytic carbon film deposited onto a high grade ceramic rod
Approx 21mm body length.
Turned brass end caps with wires crimped and soldered
The body is coated with an extremely hard lacquer to exclude moisture. 
Rated 0.25W @ 70 degrees Centigrade 50 Ohm

See also the technical data summary provided by C Shenton of Weston Super Mare