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Chris,
Just make sure the power tubes are not showing any type of white
powder or flaking on the inside. If they do they have a vacuum leak.
When the amp is turned on, make sure the plates of the tubes are not
glowing orange. If they are the bias is improperly set and the tubes
are pulling too much current. A bias adjustment could cure this. Left
like that for too long and the tubes will wear out prematurely.
For the price of the amp and cabinet it is a very good deal so I
would not quibble over these things too much as a thirty year old or
so amp will have some things that will need to be replaced and
repaired so long as the map is functioning reasonably. Tubes are the
second things to switch out and greatly improve the power output,
tone and electronic stability.
The first is the filter capacitors underneath the chassis. These
need to be replaced immediately if the amp still has them. Symptoms
of bad caps are hum, buzz, motorboating, loss of power, and strange
noises. Once they are replaced you are pretty much good for about ten
years so don't worry too much about it. Filter caps will be about
forty bucks for the power and bias supply. Hope this helps. JWL
--- In , "kahunatikiman" <chris@b...>
wrote:
> Thanks for the help - The speakers are indeed d140f's, we took off
> the back. I was hoping for d130f's, because I know they are more
> valuable. I am going to go by the store on my way home from work
and
> give it a try with one of my guitars -
> What should I look for in regards to the tubes?
> Thanks again
> Chris
