[Amps] T-T Titan 425 Q's

[Bob Arenella]

Amp newbie here. I recently came into a Titan 425 as part of a larger 
purchase. I kept a few items, sold off the rest, and have less than $200 
invested in the amp, a MFJ 259 analyzer and an Astron 50 A supply. The owner 
told me the amp was only putting out about 50% of legal limit. I figured, 
still a good deal, even if the PA's are soft. Turns out, the amp puts out 
well in excess of the legal limit :<).

The only issue I see is that the fan doesn't run at low speed. Either the 
switch or the buck winding on the xfmr, I guess. Don't see anything zorched 
in the RF deck or PS. T-T tells me this amp was built in 1994, and the date 
codes on the 3CX800A7's confirm this.

I would like to know if there are any "must do" mods or upgrades for this 
amp? T-T tells me that the padder cap problem was in the very early versions 
of this amp, and shouldn't be a concern. How 'bout the going on 17 year old 
filter caps?

Thanks for your opinions!

73 de bob
n2oam