😱 not + - supply ? 😕
You blew my meager mind for a minute, but I might be beginning to 'get it'.
So P102 is to zero the offset, right? The circuit stabilizes well enough / fast enough for no danger?
If I built it I'd probably replace P102 with fixed resistance after determining the value(s) - unless I've got it wrong, which I probably do
sorry to be such a pain, I'm just so dang rusty (and thick headed).
Thanks!
You blew my meager mind for a minute, but I might be beginning to 'get it'.
So P102 is to zero the offset, right? The circuit stabilizes well enough / fast enough for no danger?
If I built it I'd probably replace P102 with fixed resistance after determining the value(s) - unless I've got it wrong, which I probably do
sorry to be such a pain, I'm just so dang rusty (and thick headed).
Thanks!
Thanks NP!
Jung/Didden Super Regulator is nice.
Used it in Original B1 (commissioned with exotic parts), and building another Super Regulator this weekend for my B1.
Also, added a SuperReg to the Soekris DAC, replacing a standard LM337/317 voltage regs. The highs are truly amazing.
V.
Jung/Didden Super Regulator is nice.
Used it in Original B1 (commissioned with exotic parts), and building another Super Regulator this weekend for my B1.
Also, added a SuperReg to the Soekris DAC, replacing a standard LM337/317 voltage regs. The highs are truly amazing.
V.
Maybe something like this.
Mean Well MW NES-150-24 24 VDC 6.5A 150W Regulated Switching Power Supply
How are you doing this? It looks like the super regulator is limited to +/-15V or so, or +/-19V at the outside.
Long story short, you set the zener and voltage Ref IC to midpoint of your output. This would require you to search out a sutible substitute, then there's a simple calculation to get the output based on the reference voltage. 12v is the midpoint in your case.
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I'm sure It's wonderful!
Somehow I have found the smoke in every shunt type PSU with more than one device in it! I'm Jinxed with the things. More simpler just makes me happier - like a BOZ type with a big hammer swing of capacitance 😀
Thanks 🙂
B1 R2 up and running
Had to build one of these (see post #17), and I'm happy to report that it sounds fantastic, even though I'm temporarily using a 10K rather than a 25K pot (it's coming). It's at least as good as the stock B1, and much better than the DCB1s I built (which, to be fair, sounded good in some setups but not others). Warm sound, with tremendous bass. Here's some pics of the current state of things, and I'll post more when it's finished. The transformer on the board is to power the relay coil for input selection - I used it because I had it laying around. Haven't hooked it up yet.
The power supply is a Salas shunt with about 300mA spare current.
Had to build one of these (see post #17), and I'm happy to report that it sounds fantastic, even though I'm temporarily using a 10K rather than a 25K pot (it's coming). It's at least as good as the stock B1, and much better than the DCB1s I built (which, to be fair, sounded good in some setups but not others). Warm sound, with tremendous bass. Here's some pics of the current state of things, and I'll post more when it's finished. The transformer on the board is to power the relay coil for input selection - I used it because I had it laying around. Haven't hooked it up yet.
The power supply is a Salas shunt with about 300mA spare current.
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Very cool. I plan on integrating the circuit into a project. Nice to 'hear' it works well!
(as if there was a doubt.)
What is the voltage of your PSU? and is it a single supply?
Is this circuit sorta hidden in this thread?
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The PSU is the recommended +/-24VDC. And yes it was well hidden - Vince D. pointed it out to me, or I'd never have seen it. However, it appears mostly intact in several Pass amps as well as a Lightspeed/buffer combo that Papa sketched on the back of a napkin a while back.
Dear Prof. NP,
Care to comment on what you hear, B1 Vs B1 R2? License to splash adjectives about with wild abandon!
cbl
Care to comment on what you hear, B1 Vs B1 R2? License to splash adjectives about with wild abandon!
cbl
Where, prey tell.... is that recommended? 😕
Mr. Pass stated that he used a single 24v switcher.
TIA, and please pardon my confusion.
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I'm pretty sure I read them all. You suggested many circuits from shunt to chip, and even a Mean-Well switcher. No place do I read that the recommend PSU is +- 24v.
The only absolute specific that I see, is that Mr. Pass stated that he used a single 24v switcher.
In the friendliest of ways I ask - not the least combative.... because I am now confused.
The only absolute specific that I see, is that Mr. Pass stated that he used a single 24v switcher.
In the friendliest of ways I ask - not the least combative.... because I am now confused.