Tubes

6C5 or VT65 .

6C7.

6C9. .

6CA4 / EZ81 Mullard Gr Britian

6CB6A or /~6CF6 .

6CE3 or /~6CD3 or /~6DT3 or /~6CG3

6CF6 .

6CG7 or 6FQ7 Off brand or USED, Not tested, no guarantee

6CH8 .

6CK4 .