[CQ-Contest] MLA-2500 as a contest amp?

[Jukka Klemola]

Sure MLA is a contest duty cycle amp.

Remember to monitor temperatures so you will maximise the lifetime of
the very expensive tubes MLA2500 uses.
Or modify it for some other tube after the original tubes end their
contract.
Your power limit is 1500W out. That is too much for MLA2500 unless you
really take care of the rising temperatures.

I have operated two-three contests with MLA in the 1980's.
Nice & stable amp.
Easy to tune.

In multiband antenna use the harmonics may become an issue, but that is
not a major thing.
In 1980's I was running one radio with mono band antennas.

Finnish output power limit was 600W back then -> no problems.
With the current limit of 1000W that might be an issue if the ambient
temperature rises too high.


73,
Jukka OH6LI


-----Alkuperäinen viesti-----
Lähettäjä: cq-contest-bounces at contesting.com
[mailto:cq-contest-bounces at contesting.com] Puolesta Radiosporting Fan
Lähetetty: 2. kesäkuuta 2006 5:47
Vastaanottaja: CQ-Contest MailList
Aihe: [CQ-Contest] MLA-2500 as a contest amp?

Is this amp capable of supporting "Contest Duty Cycle"
operation?  I see them on e-Bay from time to time (and
they have 160-meters, which interests me).

Ev, W2EV


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 
_______________________________________________
CQ-Contest mailing list
CQ-Contest at contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest