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#481 |
diyAudio Member
Join Date: Nov 2012
Location: Cognac
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Hello everyone!
@Jean Paul: ![]() I started an implementation for a version with two channels of Kuartlotron (without power on the card Firstly) with standard components. Before going further, do you think that this provision is interesting? But as keantoken working to propose a layout, should I continue? Regard's! |
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#482 | |
diyAudio Member
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Quote:
![]() You must continue working ![]() |
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#483 | |
diyAudio Moderator Emeritus
Join Date: Sep 2002
Location: Germany
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Quote:
![]() Just go on, if it is not for others it will be for yourself and it will make your skills better. I was busy with it as well but decided to change to a new GB project that needs much time.
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It's only audio. Member of the non modular PCB design committee Last edited by jean-paul; 2nd September 2015 at 06:24 PM. |
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#484 |
diyAudio Member
Join Date: Aug 2006
Location: Texas
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I got this far and then realized the MOSFETs were TO-247 and not TO-220. Why use such horrendously oversized devices?
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The Kmultiplier rail filter! -=- The Simple Kuartlotron Superbuffer! Need something built, repaired or modded? PM me and ask what I can do! |
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#485 |
diyAudio Moderator Emeritus
Join Date: Sep 2002
Location: Germany
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With the DCB1 someone came up with running the MOSFETs at very high currents (so called "hotrodding"). This was supposed to sound better. I haven't tried but knowing that the circuit only draws a few mA I never even bothered. In my Mezmerize samples I used small heatsinks in standard config but let's say the MOSFETs only get lukewarm at standard current even without the heatsinks. Maybe Salas can give advice on suitable TO220 devices. I would add TO220 heatsink pads for heatsinks that can be soldered on the PCB in case you will use TO220 MOSFETs.
BTW "horrendously oversized devices" is a standard in audio land. I bet they won't break down in this application ![]()
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It's only audio. Member of the non modular PCB design committee Last edited by jean-paul; 2nd September 2015 at 06:41 PM. |
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#486 | |
diyAudio Member
Join Date: Nov 2012
Location: Cognac
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Quote:
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#487 |
diyAudio Moderator Emeritus
Join Date: Sep 2002
Location: Germany
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Do as you like but that is cross wiring. They taught me to keep inputs grouped together, same with outputs.
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It's only audio. Member of the non modular PCB design committee |
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#488 |
diyAudio Member
Join Date: Aug 2006
Location: Texas
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It needs a TO-220 part that's as slow as the IRF240 to make it stable. Or I could just add another resistor and use the IRF710. Thoughts?
__________________
The Kmultiplier rail filter! -=- The Simple Kuartlotron Superbuffer! Need something built, repaired or modded? PM me and ask what I can do! |
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#489 | |
diyAudio Member
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Quote:
What say you? // |
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#490 | ||
diyAudio Moderator Emeritus
Join Date: Sep 2002
Location: Germany
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Quote:
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It's only audio. Member of the non modular PCB design committee Last edited by jean-paul; 2nd September 2015 at 08:44 PM. |
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