The EIMAC <font co<font color='#ff0000'>lfont>or=#ff0000>3CW40,000A7font> is a ceramic/meta<font color='#ff0000'>lfont> power <font co<font color='#ff0000'>lfont>or='#ff0000'>triodefont> The EIMAC 3CW40,000A7 is a ceramic/meta<font color='#ff0000'>lfont> power <font co<font color='#ff0000'>lfont>or='#ff0000'>triodefont>