| Type | Substitutes | Base Diagram |
|---|---|---|
| C299 | UV99, UV199, V99, AWA99, UV099, 499, 2951, C1_Peerless, 99V, 2957, 2958_WLS, C-199, D199, DE3_UV199, C_CeCo, 57TV99, V199, 199_Brightson, ER-V199, 099_UV, AV199, DC199, B-199, CT199_UV199, TCV199, GS-99, 4610_WLS, S600_Schickerling, MV199, 3VB, PR51_Condor, 199-V, RYB199_UV, NU-99V, LB-199, R199, S8100, SV99, SLV199, RH199, 399, GS199, Ray-V199, M.D.06A, 0199, NV-199, M199, DV3A, R51_SER | |
| Web References | C299 (Cunningham) @ Franks Electron Tubes? C299 @ Radiomuseum | |