** This Ad is Marked as SOLD by seller and cannot be responded to. **
Matched pair NOS Tesla PCC88/7DJ8 (these are not JJ). Unused. 1971 Yellow Print - Rožnov n.p. Závod Vrchlabí - Czechoslovakia. These can be used in any ECC88/6DJ8 application. Two matched pairs available, bought from Tubemonger, test data on box. $40 each matched pair.