[Amps] 3-500Z Recomendations

[Steven Cook]

Team,

Anyone have data/idea/opinion on currently available 3-500Z fire bottles.  I 
believe Eimac stooped making them, but have seen the Eimac part available 
albeit, at a high price; e.g., $250.00 and up.

What about the Amprex, Phillips, or Chinese bottles available through RF 
Parts, et al?

Where is the best place to purchase 3-500Z these days?

Should they be a matched pair if going into a TL-922A?

Are the graphite plate tubes O.K.?

Any comments, criticisms, concerns, attacks, cajoling would be appreciated.

Steve
WG7K