[Amps] The dilemma of Tx tube

[Gudguyham at aol.com]

Another  problem is that many if not most 4X1's have been 
beat on hard in  commercial service, have low emission, and are being 
driven 
hard and at  very high voltages at times
If I am not mistaken, the 4X1 "typical" GG service is rated at 3KV.   Pump 
it up with the proverbial "pole pig" power supply at 6KV and something has  
to go out of spec.  Most likely IMD?