TRIODE
The CX301A Vacuum tube is a UX-Based four pin tube. It is a UX201A, made by Cunningham. The
UX201A was introduced to the market in August 1925 when the UV201A was withdrawn from the
market. It was first manufactured in 1924.
Electrical Data:
Voltage ................................ 5 V
Heater Current ......................... 0.25 A
Preferred Substitutes ................
CX301A, UX201A, X-201A, TC201A, AX201A, D401A, UX-201-A_Japan, 201, 201A, ER201A, FX201A,
BX-201A, C-201A, OK-X201A, A_CeCo, AX+, G201A, CF501, 6505_Defender, GSX401A, EX-1A, DX201A,
CTX201A, 401A_UX, GSX-201A, 301A, 57T201A, JX201A, M-201-A, A-201, LB-201A, LS201A, MX201A,
D201A, NX-201A, D-201A, EX201A, a_MusicMaster, S01A