AZX-90
Advanced Energy AE AZX 90 RF Generator 5031-004-A 115V Plasma System Working
The CAT40 handles sudden load changes without losing its grip.
ADVANCED ENERGY (AE) AZX-90 RF SOURCE MATCH. 12.56 MHZ AZX 90 ADVANCED ENERGY
You will find that the unbranded generic version is often more available than branded stock.