Yes that will works just set the resistor for 1mA (about 1K from the datasheet ID 1mA at VGS 1Volt). This is not very critical 🙂
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Some may be tempted to pre-reg this so to be care free of mains tolerance without secondary over-spec and extra sink heat. But I would be cautious of unstable interaction with the CVS. Hiss would be the clue if not having a scope.
You are right.
The PSU is designed to be connected to a filtered (using capacitors and possibly inductors (impulse noise canceling)) (this can be 2 banks of capacitors separated by a low value resistor (say 2.2Ohms) and connected to a bridge-rectifier.
Additional signal (power) condition is not needed (and or wanted). 🙂
This regulator has never shown any instability in any of the beta builds (and other).
See also http://www.diyaudio.com/forums/analogue-source/154210-mpp-438.html#post2861497
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Yes that 'platINA' would work (I do not know why the site spells it like that, but I like it 🙂).
This http://www.diyaudio.com/forums/anal...t-all-dc-coupled-riaa-preamp.html#post2162991 would work also (the raw PSU board).
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What's that? subtract? it's realy confusing and negative also.
Subtract Synonyms, Subtract Antonyms | Thesaurus.com
89 +1 = 90 +1 = 91 +1 = 92 +1 = 93 +1 = 94 +1 = 95 +1 = 96 +1 = 97 +1 = 98 +1 = 99 +1 = 100, now count the 1's and you find that the answer is 11
What's that? subtract? it's realy confusing and negative also.
Subtract Synonyms, Subtract Antonyms | Thesaurus.com
89 +1 = 90 +1 = 91 +1 = 92 +1 = 93 +1 = 94 +1 = 95 +1 = 96 +1 = 97 +1 = 98 +1 = 99 +1 = 100, now count the 1's and you find that the answer is 11
OK... OK... OK....I submit....being Irish I know how useless it is arguing with a Dutch Man!!😉😉😉
Whoever wants a more precise RIAA here are my simulated values.
Precision is within 0.01dB (I will have to double check once I have the unit).
I happen to have two Teflon Custom values sample I got a long time ago with these exact values by Audience Aura-T
I have experimented with this values on another project and the difference with a normal Film cap is really drammatic.
I am wondering if anybody would be interested to order custom values of Cu-TFT by V-Cap.
They are so far the finest Teflon caps ever made.
Unfortunately for custom values we probably need 10-15 people because of the minimum quantity.
Obviously they are more expensive than a regular Film cap, but since this design is so good I feel it deserves the best parts.
I would like to get the feeling and see how many people would be interested in this.
Precision is within 0.01dB (I will have to double check once I have the unit).
I happen to have two Teflon Custom values sample I got a long time ago with these exact values by Audience Aura-T
I have experimented with this values on another project and the difference with a normal Film cap is really drammatic.
I am wondering if anybody would be interested to order custom values of Cu-TFT by V-Cap.
They are so far the finest Teflon caps ever made.
Unfortunately for custom values we probably need 10-15 people because of the minimum quantity.
Obviously they are more expensive than a regular Film cap, but since this design is so good I feel it deserves the best parts.
I would like to get the feeling and see how many people would be interested in this.
Attachments
Thank You Stefano. Thats is what i have said many times. The Paradise can be trimmed to any precision desired. The huge Teflon caps do not fit on the board though. On the other hand we have included provision to connect an external board for the RIAA components.
you are welcome.
The Teflon caps wouldn't be big at all.
Also, after I have tried the phono as is, if it sounds as good as I think, I will re-do the PCB to accomodate Texas Film Resistors eventual Teflon Cap 4 layer board probably.
Anyhow, the caps are pretty small, obviously a bit bigger than regular film, but still a very feasable size.
Still want to see how much interest as I would be pretty oriented in making a very cutting edge quality phono.
The Teflon caps wouldn't be big at all.
Also, after I have tried the phono as is, if it sounds as good as I think, I will re-do the PCB to accomodate Texas Film Resistors eventual Teflon Cap 4 layer board probably.
Anyhow, the caps are pretty small, obviously a bit bigger than regular film, but still a very feasable size.
Still want to see how much interest as I would be pretty oriented in making a very cutting edge quality phono.
Sure, you are pushing it forward. The Stage as is ( is use Styroflex and P-P film and foil ) already sounds quite psychedelic.
Wonderful.
Nevertheless Teflon caps and Texas resistors are in a completely different legue sound wise and if the stage is as good ad I think it will "eat"ball the quality of these premium parts.
Stefano, when you can afford it, why not ?
What is also VERY important is the cartridge, arm and turntable. Here is where most amateurs are lacking. A combination of DEBON DL103 plus bulk foils and Teflons makes no sense to me. I know, the DENON is a holy cow but for me it does not cut the mustard.
What is also VERY important is the cartridge, arm and turntable. Here is where most amateurs are lacking. A combination of DEBON DL103 plus bulk foils and Teflons makes no sense to me. I know, the DENON is a holy cow but for me it does not cut the mustard.