>
>I friend of mine is getting ready to buy a legal limit amp for the radio
>club at work and has his eyes on the Ameritron AL82. Can anyone
>comment on the AL82 vs the AL1200.
? I have seen many 3-500Zs that suddenly shorted due to bent filament
helices after a semi-mysterious "big-bang". .. However, bent filaments
are rare with 3CX1200A7s - even though big-bangs are not.
> The amp will be used in a
>club environment where it will be exposed to operators of widely
>varying technical savvy, so factors like idiot proofness (I can see
>the grid current meter now)
? Grid-current damage in 3-500Z amplifiers seems unlikely to me. Even
when the grid is run at incandesent temps, no damage appears to result.
>and tube replacement cost are relevant.
>The other relevant factors are gain (both the club's exciters are 100W
>max output) and IMD performance, and perhaps blower noise.
>
- cheers, Mike
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
--
FAQ on WWW: http://www.contesting.com/ampfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|