Thanks, recycled parts are limited to heat-sink, power lead and feet from a DUAL and the boards. The rest is new. The case would only have been recycled if I had bought it with wine within. I didn't.
Transformation of an amp
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Re: Transformation of an amp
- TheMadMick
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Re: Transformation of an amp
Pity, the wine might have improved your enjoyment factor?Hannes-Gregor wrote: ↑Mon Mar 22, 2021 3:56 pmThanks, recycled parts are limited to heat-sink, power lead and feet from a DUAL and the boards. The rest is new. The case would only have been recycled if I had bought it with wine within. I didn't.
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- Fretless (Mon Mar 22, 2021 5:29 pm) • Hannes-Gregor (Mon Mar 22, 2021 7:00 pm)
Blusound Vault 2, P50SA, A80's, BMU, TIS, LS7, MA PL200, Meridian 506 (18 bit).
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Re: Transformation of an amp
... or maybe blown up the amp.TheMadMick wrote: ↑Mon Mar 22, 2021 5:09 pmPity, the wine might have improved your enjoyment factor?Hannes-Gregor wrote: ↑Mon Mar 22, 2021 3:56 pmThanks, recycled parts are limited to heat-sink, power lead and feet from a DUAL and the boards. The rest is new. The case would only have been recycled if I had bought it with wine within. I didn't.
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Re: Transformation of an amp
Smashing job Hannes, I also like the idea of recycling, and it's got to be asked, was it a German wine box?
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- Hannes-Gregor (Tue Mar 23, 2021 6:48 am)
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Re: Transformation of an amp
It was a cheap standard present box for three bottles . So likely to be from China ...
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Re: Transformation of an amp
After having a further look into the AP70 I decided to make the amp a bit tidier:
So that's it - case closed.
So that's it - case closed.
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Re: Transformation of an amp
The stored energy is very important, but the speed to which you can top up this energy is also important.Daniel Quinn wrote: ↑Mon Mar 22, 2021 1:34 pm For me , the uf of the capacitor had a greater impact than the make.
Low ESR (less effect at low mains frequency) low series internal inductors, speed of rectifiers, transformer impedance, and most importantly the ripple current and MTBF and operating temperatures.
So 0.5C(V x V) is very important ie A/S
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- CycleCoach (Sun Aug 08, 2021 7:55 pm)
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Re: Transformation of an amp
Not all, are the same, select MIL spec cap if you want good ones and funny enough SMPSU caps are often better than bog standard stuff.Daniel Quinn wrote: ↑Mon Aug 09, 2021 2:08 pm Yes , but most commercial caps report similar specs dont they?
Check for ESR, ESL, Ripple Current, temp working, life. And on some spec you get resonant frequency odd thing to spec you may think not for high speed SMPSU design running over 1MHz.
Tants no thanks dreadful things Oscon by Sanyo nice, Noyer are good to.
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Re: Transformation of an amp
Tantalum capacitors are fine where they are good, in computers apparently, but they seem to be expensive so I don't see why anyone would use them unless it was essential. I dare say there are loads in modern avionic boxes but I haven't been inside a black box for over 40 years.Wonfor14 wrote: ↑Mon Aug 09, 2021 2:56 pmNot all, are the same, select MIL spec cap if you want good ones and funny enough SMPSU caps are often better than bog standard stuff.Daniel Quinn wrote: ↑Mon Aug 09, 2021 2:08 pm Yes , but most commercial caps report similar specs don't they?
Check for ESR, ESL, Ripple Current, temp working, life. And on some spec you get resonant frequency odd thing to spec you may think not for high speed SMPSU design running over 1MHz.
Tants no thanks dreadful things Oscon by Sanyo nice, Noyer are good to.
To answer DQ, it isn't just the capacitors as I am sure Colin will tell you, the other components matter too.