Hello together,
I want to change from 8ohm to 4 ohm has anybody an Idea how the wiring shoud be done for an 4ohm application ?
Cheers
salwa
this is another digram of TVa 1
sorry at moment I cant make these check at my own , the amp is at maintenence and I try to check out how the situation is with the Outputtransormer...
But I will contact my technican that he makes some pictures and these mesurement you suggested......
The photo on post 16 there is, on the right side, the section to output.
On tap 8 ohm there is a grey cable and orange cable, this one goes to + of loudspeaker connection?
Then follow the cable from - of loudspeaker connection to the trafo, it is 0
But if you look on the top of connrction you can see a big cable, maybe it is 0, check the way to binding post.
So the connections are in reverse mode.
look hereexcuse me waltube have youn an link ? the picture is not good to see.....
https://www.vintage-radio.net/forum/showthread.php?t=52103
Ok I have spoken with my technican, he will make these beeper check he nows what you mean euro21......
I think the direction is now clear!
In the orginal manual is nothing mentioned about 4ohm application ?
In the orginal manual is nothing mentioned about 4ohm application ?
My opinion is that if you move the cable from + binding post to the tap 4 ohm you can solve the problemIn the orginal manual is nothing mentioned about 4ohm application ?
Walter
I'm not so sure. The second winding will not be used at all if you do that. The "4-8" section and the "0-16" winding must have the same number of turns as they are currently connected in parallel. So I think they are both "4 ohm" windings.My opinion is that if you move the cable from + binding post to the tap 4 ohm you can solve the problem
Walter
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