An LM317 will not help, this is the same work that is done by the first stage CVS and it just would create the need for 6Volts more on the input. In fact a shunt regulator is like a class A amplifier, it dissipates all power when idling.
Tanks to Joachim I have the 2 common mode cokes as spec
New board lay out ready for acid bath
Footprints for MKP4 up to 7 mm width and raster from 10 to 15 mm
Footprint for vertically mounted resistors (much tidier this way)
I have area on picture for the foot print sizes could you please double check
And let me know of any further changes as needed.
Just noticed missing cooper pour around output tracks that is now ok
Picture 1 The all thing
2 foot prints
3 for clarity no ground plane
PS I have sent couple of PM (Joachim your box is full again)
PSS tanks Joachim for the cokes arived earlier shuld be able to send boards by Monday
New board lay out ready for acid bath
Footprints for MKP4 up to 7 mm width and raster from 10 to 15 mm
Footprint for vertically mounted resistors (much tidier this way)
I have area on picture for the foot print sizes could you please double check
And let me know of any further changes as needed.
Just noticed missing cooper pour around output tracks that is now ok
Picture 1 The all thing
2 foot prints
3 for clarity no ground plane
PS I have sent couple of PM (Joachim your box is full again)
PSS tanks Joachim for the cokes arived earlier shuld be able to send boards by Monday
Attachments
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Joachim,
here it is on youtube:
Mercedes Sosa (1983) 04- Tríptico mocoví. - YouTube
At which time should I expect the dog on this track?
regards,
Hartmut
MP3 will eat and digest an (smoked) Elephant even before breakfast.
http://www.youtube.com/watch?v=gXYfnWRp1Q0
The dog is there, even in this MP3 just before the big Pan Flute starts. It just does not sound "Waa Wuuuff!" like in my system but rather like "Ähk Ahh" or "Wah Wah" or even "Ah Ah", rather soft. Also the "space" around that bark is missing, it also has no focus. In my system you can locate the dog around 20m in the depth plane, ear level, slightly right off the middle.
Michael and i are working on a redesign of the Paradise to make it DIY prove.
Actually we are thinking that the buffer could cause oscillation so it will be subtituted by a much simpler well proven design that sounds at least as well. It is my floating cascode Fet buffer. Michael also has put all kinds of current mirrors thruw the paces and the design he came up with has higher output impedance, less distortion and is less critical in terms of Hfe matching. It is also less complex from component count. I already rebuild Heseners boards with the new mirrors and i think it sounds more dynamic. Michael also sugested to use BJT Arrays. That makes success even more easy.
Of cause Frans´s new PSU will be implented and the layout will hopefully have a working grounding scheme.
Actually we are thinking that the buffer could cause oscillation so it will be subtituted by a much simpler well proven design that sounds at least as well. It is my floating cascode Fet buffer. Michael also has put all kinds of current mirrors thruw the paces and the design he came up with has higher output impedance, less distortion and is less critical in terms of Hfe matching. It is also less complex from component count. I already rebuild Heseners boards with the new mirrors and i think it sounds more dynamic. Michael also sugested to use BJT Arrays. That makes success even more easy.
Of cause Frans´s new PSU will be implented and the layout will hopefully have a working grounding scheme.
So here it is 5 to 35V up to 1Amp, maximum dissipation at IRFP924 35Watt (when Vout 35Volt @ max 1Amp), and at each of the power transistors 17Watt (when Vout = 5Volt @ max 1Amp).
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