[sdiy] Damned amplifier

[Linium]

Hi, I am back on this list after one year off.
Now that my 2 amplifers are fixed i would like to thanks all the people who 
shared their experiences last year, and specially Glen Berry who found the 
exact problem. 
On both of my amplifiers the relays had some bad contacts. On the Sony TA-AX3 
(an old silver piece of shit probably) the relay was transparent so i had 
little to do to get off the top of the relay with a tool and clean up the 
contacts.  Bingo ! 
It was the exact same story with the SAMSON SERVO 150 wich has much more value 
for me since i use it to drive my Tannoy Reveal. The relay was not 
transparent but i managed to guess where the contacts were and at my surprise 
the plastic cover was easy to scratch off. After some cleaning the amplifier 
showed a perfect behavior and i use it every day now. 

Well it was just some feedback about this because i think that other people 
may face a similar problem.

Cheers,

Linium

 At 03:06 PM 11/11/02 , Linium wrote:
>Hello,
>
>I have 2 stereo amplifiers that show almost the same faulty behaviors and i
>would like to ask about this kind of problem.
>
>The amplifier work ok but there are some moments where a voice start to have
>some very short loss in the signal, like there is a bad contact somewhere.

Do the amplifiers use relays to delay the amplifier´s connection to
speakers, as a means of preventing ´´turn-on thump´´? If so, these relays can
develop poor connections and cause problems similar to what you describe.
They can also cause crossover distortion.

later,
Glen Berry