Reporting question for Vacuum Tube - 6CA7, Electro-Harmonix

Product:
Vacuum Tube - 6CA7, Electro-Harmonix

Question:
Hi will these valves work well in FENDER CHAMP 25 combo amps

Answer:
According to our limited resources your amp comes with a single 12AX7. The 12AX7 is a preamp tube and the 6CA7 is a poweramp tube and these are not compatible with each other.