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The Pioneer Super Linear Circuit
The Pioneer Super Linear Circuit
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Old 8th October 2017, 12:08 AM   #11
Havenwood is offline Havenwood  Argentina
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Amazing proyect!
I have always been very interested in all the development of amplifiers by the Japanese manufacturers in the 80s.

The links of reference are very interesting, I have no found more information about this circuit that only the Andrea Ciuffolli (simple) implementation.

Off-topic: Do you try something with the Hyperbolic Circuit Amplifier by Yamaha?
Do you have any reference about this?

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Old 8th October 2017, 04:45 AM   #12
EUVL is offline EUVL  Europe
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Yamaha's Hyperbolic Conversion Amplification (HCA) Circuit

Not interesting for me.


Patrick
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Old 8th October 2017, 10:55 AM   #13
Morde is offline Morde  Finland
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Awesome that Patrick keeps us DIYers happy with these cool projects! I think this will be my Xmas project if the boards come available.
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Old 8th October 2017, 06:16 PM   #14
adydula is offline adydula  United States
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Count me in on a board...would love to try this one.
Alex
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Old 8th October 2017, 07:02 PM   #15
EUVL is offline EUVL  Europe
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Please register your interest at the link below so that this thread can remain technical only :
Interest for Potential GB for Pioneer Super Linear Circuit

Thank you for your interest and cooperation.


Patrick
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Old 9th October 2017, 03:07 PM   #16
samoloko is offline samoloko  Bulgaria
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Patrick,
as always very nice,
thank you
Is Is possible to use as I/V converter
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Old 9th October 2017, 03:32 PM   #17
EUVL is offline EUVL  Europe
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No.


Patrick
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Old 9th October 2017, 09:01 PM   #18
JPS64 is offline JPS64  Germany
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Hello Patrick,

I think thermal coupling is with THT components possible (BC550C/60C, SANKEN; SK482 heatsink).

Only my 2 cent attempt, no more investigation planned.

JP
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Old 9th October 2017, 09:03 PM   #19
JPS64 is offline JPS64  Germany
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Really really nice SMD layout!

JP
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Old 9th October 2017, 09:12 PM   #20
EUVL is offline EUVL  Europe
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> I think thermal coupling is with THT components possible (BC550C/60C, SANKEN; SK482 heatsink).

I know that, but 2SA970 / 2SC2240 are no longer active parts.
And BC550/560 do not have a comparable (low) noise spec.

As already stated in the PDF document, the thermal coupling as implemented has been proven successful.


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