The high-frequency triode tube with low level of intrinsic noises. Super long life and high durability (prefix -DR). 6S3P-DR closest analogue for a WE417A, but different pinout.
Type: HF triode, hi-durable, long-life (more 10000h);
Application: UHF voltage amplification in grounded cathode circuit in input and wide-band amplifiers;
Cathode type: oxide, indirect heating;
Envelope: glass, miniature;
Socket type: rsh8.