The buffer off set can be adjusted with the resistor. with the SK170 and 5 ohm it is app 60-70 mV.. with 11 ohms it practically Nill... (8,5 mA through the Jfet)
Thank you Miib... precious info
Hi. Since the official R3 PCB was no longer available, I did my own
I also did a pcb for the pre-reg according to the included schematic. I should have them built by the end of the day.
The latest version of the parts list match these PCB.
I also did a pcb for the pre-reg according to the included schematic. I should have them built by the end of the day.
The latest version of the parts list match these PCB.
Attachments
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Question about the BC327/337 HFE matching. Is it necessary to match all the transistor one one channel pcb, or just the Gain Cell ones (Q2,25,26,29 and Q1,30,31,32). And finally, I guest it is necessary to match both channel together as well to get the same gain?
Thanks.
Thanks.
Question about the BC327/337 HFE matching. Is it necessary to match all the transistor one one channel pcb, or just the Gain Cell ones (Q2,25,26,29 and Q1,30,31,32). And finally, I guest it is necessary to match both channel together as well to get the same gain?
Thanks.
Hesener Put this mach beter way in the guide.
http://www.diyaudio.com/forums/analogue-source/218625-paradise-builders.html#post3189930
Se post 13
Match 10% or better pick closest matched and fit in groups as in circuit
Imput Current mirrors and soon
This looks like transformer - choke - rectifier - cap,Hi. Since the official R3 PCB was no longer available, I did my own
Guys. This isn't what we talked about. We want transformer - rectifier - cap - choke - cap.
This looks like transformer - choke - rectifier - cap,
Guys. This isn't what we talked about. We want transformer - rectifier - cap - choke - cap.
Wasit not traffo - common mode coke - rectifier - cap - coke - cap ?
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Why not use John Curl topology? He attached it in another thread.Wasit not traffo - common mode coke - rectifier - cap - coke - cap ?
Attachments
To me theres no need to target ripple rejection.. HF is the primary.....
The Paradise has extreme ripple rejection.... all is effective shielded by high impedance current-sources/mirrors. poison is the Hf, that can bleed through stray capacitance.
Curls schematic seems rather fine to me or at least a good start. ut no need for the LM's as the Shunt is already onboard..:9
The Paradise has extreme ripple rejection.... all is effective shielded by high impedance current-sources/mirrors. poison is the Hf, that can bleed through stray capacitance.
Curls schematic seems rather fine to me or at least a good start. ut no need for the LM's as the Shunt is already onboard..:9
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Why not use John Curl topology? He attached it in another thread.
Sorry that to me is straight LM317 and a common mode coke classic straight out of book
Why do we have to put a name on it?
In other words....
Besides one may need to step back and see all the work FDW did on the suply before mentioning LM317
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