Is that a bad thing? I thought that steel or magnetic conductors were bad for carrying signal, didn't even imagine that having these materials near will affect.Yes they do have versions with aluminium plates, but the angles and the screws are still most likely steel (magnetic).
Yes I do, not issues at all with DCB1's protection relay. Neither turning first the preamp on nor the poweramp.Anyone running F5 with DCB1 pre? Any issues with them both being dc coupled?
But I have output capacitors at my source.
Regards,
Regi
Hi Peter,Peter Daniel;2399316]This GB (3rd re-run) was just opened, so plenty of boards are available.
Recieved mine today, Thanks!!
ReytNZ
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Is that a bad thing? I thought that steel or magnetic conductors were bad for carrying signal, didn't even imagine that having these materials near will affect.
Technically? No.
I remember Syn08 found for his ultralow distortion amps that steel made a measurable difference, but before you worry about steel in context with such amps, you need to get wiring/grounding right first. Really big topic for ultralow distortion amps.
No need to worry about that
Quick possibly newb question, I found some 22,000uf 35V caps for my stereo F5 project... Is 35v sufficient? I see people going up to 65v and wasn't sure if that's just a product of what was available at the time or some other meaningful reason.
I know Nelson specs 18000uf 25v... I just want to verify that's OK for this PSU design as well... I don't see anything that would cause a change but I'm a rookie.
I know Nelson specs 18000uf 25v... I just want to verify that's OK for this PSU design as well... I don't see anything that would cause a change but I'm a rookie.
I know Nelson specs 18000uf 25v...
I bet they are with good ripple ratings (current)
Thanks, quite recomfortingTechnically? No.
I remember Syn08 found for his ultralow distortion amps that steel made a measurable difference, but before you worry about steel in context with such amps, you need to get wiring/grounding right first. Really big topic for ultralow distortion amps.
No need to worry about that
Kilroy, you must choose capacitor rating to be AT LEAST higher than the applied voltage. So, for a 24v supply, 25v rating would be enough. They won't explode if you apply 26v or even 28, but that will shorten their life.
Personally, I would use 35v for a 24v supply. Going higher only increases size and cost.
Regards,
Regi
Peter, I thought I would pick up another set of F-5 boards. Do we use the info and pricing on page 1 still? seems like I remember an increase for shipping or something? Same pay pal address on the audiosector site?
Same address, current pricing was posted here: http://www.diyaudio.com/forums/group-buys/140306-f5-pcb-group-buy-29.html#post2376917
Thanks, quite recomforting
Kilroy, you must choose capacitor rating to be AT LEAST higher than the applied voltage. So, for a 24v supply, 25v rating would be enough. They won't explode if you apply 26v or even 28, but that will shorten their life.
Personally, I would use 35v for a 24v supply. Going higher only increases size and cost.
Regards,
Regi
Great, thanks!
That's what I thought, but I just wanted to make sure there wasn't some kind of magic I was missing.
-Phil
I bet they are with good ripple ratings (current)
In the F5 manual he mentions 22000uF, 25V, 70mV ripple...
Is 70mV low?
that's the ripple voltage at the output of the PSU.In the F5 manual he mentions 22000uF, 25V, 70mV ripple...
Is 70mV low?
What he referred to was ripple current through the capacitor.
The operational ripple current must be less than the ripple current rating of the capacitor/s
It take nearly 3 weeks.
Hi Martin,
How long did the boards take to reach you ?
I can probably estimate when it will reach JB, Malaysia.
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