[AMPS] Amperex/eimac

[Rich Measures]

>I have an ameritron AL-80B that I am replacing the tube in. I have an
>Amperex 3-500 (NIB) I would like to use. Is this tube a suitable
>replacement or is there some modifying that needs to be done to use it.
yes
Check the ZSAC.  It should be 75mA or a slightly higher on SSB.  Higher 
Mu/gain usually means decreasing the zener bias v.   -  -  If you hear a 
bit of bandswitch arcing with the new, higher-gain tube, you might be 
interested in seeing:
http://www.vcnet.com/measures/bandsw.html
Rich---

R. L. Measures, 805-386-3734, AG6K   


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