Anyone know J. Breakall?
The quote comes from post #137 way back on page 14 of the thread.
Sorry for going off topic, and this may be pure coincidence, but is the author/contributor of those articles mentioned above James Breakall? If so, he was a professor of mine in college who I knew fairly well! I'll have to email him to ask if that is in fact him that wrote those articles.
Fred Dieckmann said:
The quote comes from post #137 way back on page 14 of the thread.
Sorry for going off topic, and this may be pure coincidence, but is the author/contributor of those articles mentioned above James Breakall? If so, he was a professor of mine in college who I knew fairly well! I'll have to email him to ask if that is in fact him that wrote those articles.
Hi,
2) For the output stage in my phono (version of la boheme). I have a super reg (not ALW, but Jung-Didden 2002) for the output stage. It is a huge improvement compared with batteries. 'Holographic' sound and much more precision in stage, you really can tell where the instruments are placed. There is an issue, however: the bass is weak and fluffy, compared to an discrete output stage in borbely-style with simple regs.
No, because I'm not familiar with those programs. I tried, but it just ates time. I might draw an conceptual sketch tonight, and get some opinions here.
have a nice day,
Rüdiger
1) curiosity, see http://www.diyaudio.com/forums/showthread.php?postid=135711#post135711peranders said:
2) For the output stage in my phono (version of la boheme). I have a super reg (not ALW, but Jung-Didden 2002) for the output stage. It is a huge improvement compared with batteries. 'Holographic' sound and much more precision in stage, you really can tell where the instruments are placed. There is an issue, however: the bass is weak and fluffy, compared to an discrete output stage in borbely-style with simple regs.
Because the soldering iron heats up faster than the computer boots
No, because I'm not familiar with those programs. I tried, but it just ates time. I might draw an conceptual sketch tonight, and get some opinions here.
have a nice day,
Rüdiger
I really recommend that you test it. Many here have experience of LTSpice.Onvinyl said:
I have simulated three project with success, QRV-05 diamond buffer, QRV-06 current feedback amp and the last SST-01 softstart and for this LTSpice was _very_ helpful because the design is very unlinear and unpredictable. The simulation was nearly 100% exact!
You know you can also get distortion from the program!
You draw the schematic and when you are ready, just hook up a signal generator at the input then put an oscilloscope probe where you want the see the signal. Try as much as possible to get the simulation models for the parts you are going to use.
Hi,
Why? Are you referring to the bootstrapped op-amp arrangement?
However, the first real useful web-source concerning shunt regs (because it names design goals and tells us how to calculate relevant values), that I found just today, seems to imply that a top-notch shunt can't be achieved by simply swapping the super-regs pass-transistors from npn to pnp and await wonders.
older shunt reg. article by walt jung
Maybe the error-amp could stay, but we need a very high Hfe transistor arrangement.
Rüdiger
peranders said:
Why? Are you referring to the bootstrapped op-amp arrangement?
However, the first real useful web-source concerning shunt regs (because it names design goals and tells us how to calculate relevant values), that I found just today, seems to imply that a top-notch shunt can't be achieved by simply swapping the super-regs pass-transistors from npn to pnp and await wonders.
older shunt reg. article by walt jung
Maybe the error-amp could stay, but we need a very high Hfe transistor arrangement.
Rüdiger
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