Trio Ka1500 Amplifier

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It is a uk model !!
I have sold many of them in the late 70s early 80s
As i remember it was completly unexceptional.
Nothing good nothing bad I felt that Trio lost there way at this time
I was just around the time that Trio stopped using BHMorriss and co And imported Direct.
It was a very simple device
Regards Trev
 
Thats about right
i assume you have given it time to settle down.
i normally give the amp a bit of driving first so that the sinks are warm to the touch and then adjust the bias
Dont get me wronge re my earlier comments they were a good value for money amp!
Just nothing over special !!!
regards Trev
 
big jim said:
Thanks all ive repaired the amplifier the fault was
the out put transistors 2sb595 and 2sd525
i need the circuit so that i can set up the bias ive set it
at 15mv across the 0.47R emitter resistor 30ma

i would just like to sure

thanks big jim

Advantage of a stero amp, you can always check what the other channel is set to - on the assumption that one might still be correct?.
 
Sorry about not seeing the previous question, I too have a KA660 (which is working perfectly, and I've been very happy with). But because I've got one, I have the manual at home - and my attic workshop is currently in rather a mess as I'm in the process of doing some work there.

If I come across it, I'll grab it - but it could be in any number of places.

What are your specific problems anyway?.
 
What are your specific problems anyway?. [/B][/QUOTE]


have clean the inside buts seems to have a problem with right channels on both speaker settings and is a little crackley when changing Loadness ect... want to get it looked at and be nice to give them a manual.

Thanks in advance
 
Hi Jim,

thanks for your support..

Please, if you can send me a copy of KA 3700
i'm looking for some info on the KA 1500 .. but i hope that have some other info on other KA amplifier can be anyway helpfull..

Thanks in advance!..

i can not email you due to the fact that i'm a new member of this forum..please, check my email add.. on my profile..

Thanks, Luciano
 
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