Hi, this is the schematic of SA-5.1, but I really can not say which part is high voltage regulator.
Second picture is the photo of that section. With some arrangement, I can fit some two 45mmD - 100mmL caps in there, but that's max. That Sprague caps are 25mmD - 65mmL, for comparison.
Second picture is the photo of that section. With some arrangement, I can fit some two 45mmD - 100mmL caps in there, but that's max. That Sprague caps are 25mmD - 65mmL, for comparison.
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Thank you for your help. I saw them but they are oversized for my chassis. I must use electrolytics.
That half of the whole schematic . What that does show is that there is separate bias supply for the 12at7 this unusual and that supply will respond to cap up grades it will be low voltage and negative . Look foward to seeing the PSU schematic . Regards
I have this. A fellow forum member draw that.
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use multiple small radials instead of big axial
mount them on a small print board
something like the Nichicon BT series
long life cap built especially for hot 'environment'
and btw, area around the red poly caps does not look 'healthy'
a mod job that went wrong maybe ?
maybe this amp is not in very good condition at all
mount them on a small print board
something like the Nichicon BT series
long life cap built especially for hot 'environment'
and btw, area around the red poly caps does not look 'healthy'
a mod job that went wrong maybe ?
maybe this amp is not in very good condition at all
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C2 the 4700 25 volt cap should be replaced with an elna or my choose a muse . here are two other long threads about this pre-amphttp://www.diyaudio.com/forums/tubes-valves/78298-counterpoint-sa-5-1-a.html
and
http://www.diyaudio.com/forums/tubes-valves/78298-counterpoint-sa-5-1-a-29.html
and
http://www.diyaudio.com/forums/tubes-valves/78298-counterpoint-sa-5-1-a-29.html
Hi Tinitus,
Thank you for your suggestions and notice of the PCB. When I'm buying the pre I thought that it is a soldering left behind while changing that capacitor. I upload more clear pictures of those parts. I have the pre for one and half year now and I'm enjoying it. Yet I haven't *touched* and will not touch anything. AFAIK, I'm the third owner and the previous two sent the item two times to Mike Elliott, the designer and owner of the Counterpoint. Other from him (or his technician) no one touched the pre. Or let me say, he is the one who touched last.
But I can notice that, since I clearly and honestly indicated my skill and knowledge about modding, you thought that they were my own faults. No friend, I'm trying to choose some parts and I'll have a technician install them. Since you make notice, I'll have the soldering parts be cleaned to my technician.
Do you think that resistor must be changed to a new one?
Thank you for your suggestions and notice of the PCB. When I'm buying the pre I thought that it is a soldering left behind while changing that capacitor. I upload more clear pictures of those parts. I have the pre for one and half year now and I'm enjoying it. Yet I haven't *touched* and will not touch anything. AFAIK, I'm the third owner and the previous two sent the item two times to Mike Elliott, the designer and owner of the Counterpoint. Other from him (or his technician) no one touched the pre. Or let me say, he is the one who touched last.
But I can notice that, since I clearly and honestly indicated my skill and knowledge about modding, you thought that they were my own faults. No friend, I'm trying to choose some parts and I'll have a technician install them. Since you make notice, I'll have the soldering parts be cleaned to my technician.
Do you think that resistor must be changed to a new one?
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Thank you very much. I already read that threads a few times.... Still some parts are beyond my reach
Ok which parts so that what we can address.Thank you very much. I already read that threads a few times.... Still some parts are beyond my reach
sorry, must have been shadow
from this angle it looks tip top
the other 'foul' area in the right picture appears to be just old solder from a removed cap
an no longer in use
no worries either
and I do think the previous 'judgement' on your supply cap's voltage rating were...a bit 'off'
well, my personal opinion is, if its good, its not likely to get any better
that said, Im by far no expert either, even if I would sound like one to you
so, don't listen too much to me either
so why not just trust mr Mike Elliot to know how to
or whoever he trust to do the work on his amps
from this angle it looks tip top
the other 'foul' area in the right picture appears to be just old solder from a removed cap
an no longer in use
no worries either
and I do think the previous 'judgement' on your supply cap's voltage rating were...a bit 'off'
well, my personal opinion is, if its good, its not likely to get any better
that said, Im by far no expert either, even if I would sound like one to you
so, don't listen too much to me either
so why not just trust mr Mike Elliot to know how to
or whoever he trust to do the work on his amps
Oh no no.. I already feel like stealing something or doing a sin at this forum.. Asking questions with my current knowledge level and knowing that I can only understand a quarter of it. This is like asking food from people and than only bite once and throw away the rest.
I already learned many things and I'm just fine sir.
I already feel like stealing something or doing a sin at this forum.. Asking questions with my current knowledge level and knowing that I can only understand a quarter of it. This is like asking food from people and than only bite once and throw away the rest.I already learned many things and I'm just fine sir.
like what ?
I haven't read anything worth knowing yet
build something instead
then you might learn something
its called DIY
sorry, must have been shadow
from this angle it looks tip top
the other 'foul' area in the right picture appears to be just old solder from a removed cap
an no longer in use
no worries either
and I do think the previous 'judgement' on your supply cap's voltage rating were...a bit 'off'
well, my personal opinion is, if its good, its not likely to get any better
that said, Im by far no expert either, even if I would sound like one to you
so, don't listen too much to me either
so why not just trust mr Mike Elliot to know how to
or whoever he trust to do the work on his amps
Thank you Tinitus. As I said at the other thread, I'm not trying to make it better, just more reliable since some parts are nearly at my age.
so what
those old caps are not leaking or anything
they could still be as good as new, and best quality you will ever find
but those white poly caps...? .... Wonder Caps ?...man, just the name itself sounds like crap to me
me, I would just remove them, and forget the rest
but like I said, I'm just old and stupid
and anyone who want to say yes are free to do so
those old caps are not leaking or anything
they could still be as good as new, and best quality you will ever find
but those white poly caps...? .... Wonder Caps ?...man, just the name itself sounds like crap to me
me, I would just remove them, and forget the rest
but like I said, I'm just old and stupid
and anyone who want to say yes are free to do so
like what ?
I haven't read anything worth knowing yet
build something instead
then you might learn something
its called DIY
I'm keeping them for myself
And building something is although tempting, my wife wouldn't like it. I can hurt myself
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