This is my understanding that it is public, but I have contacted Winfield Hill and if he answers,
I will post his reply here.
Ray
It might be better to contact the publisher.
They are the ones who care and know the law, especially when the matter pertains to an older edition.
Cheers,
Bob
A NEW METHODOLOGY FOR AUDIO FREQUENCY POWER AMPLIFIER TESTING
A NEW METHODOLOGY FOR AUDIO FREQUENCY POWER AMPLIFIER TESTING BASED ON PSYCHOACOUSTIC DATA THAT BETTER CORRELATES WITH SOUND QUALITY
In case of audio amplifier measuring technologies the most interesting PDF book I know, that I have just found by chance - go to
Next-Tube. Articles about vacuum tubes audio and hybrid amplifiers.
found under
Next-Tube. Design of vacuum tube audio amplifiers.
I am looking for this as usual book, which I can't find anywhere, probably because the edition is out of print.
But I could place a search query on ebay.
Maybe someone can upload the image of the associated cover.
Thank you very much.
P.S.: also very interesting is the paper already released 1957:
Some Defects in Amplifier Performance Not Covered by Standard Specifications
A NEW METHODOLOGY FOR AUDIO FREQUENCY POWER AMPLIFIER TESTING BASED ON PSYCHOACOUSTIC DATA THAT BETTER CORRELATES WITH SOUND QUALITY
In case of audio amplifier measuring technologies the most interesting PDF book I know, that I have just found by chance - go to
Next-Tube. Articles about vacuum tubes audio and hybrid amplifiers.
found under
Next-Tube. Design of vacuum tube audio amplifiers.
I am looking for this as usual book, which I can't find anywhere, probably because the edition is out of print.
But I could place a search query on ebay.
Maybe someone can upload the image of the associated cover.
Thank you very much.
P.S.: also very interesting is the paper already released 1957:
Some Defects in Amplifier Performance Not Covered by Standard Specifications
Attachments
Are there a book, there are collected all information from this URLs ?
MJR9
MJR-8 Mosfet Audio Power Amplifier
MJR-8 Mosfet Audio Power Amplifier
MJR7-Mk5 Mosfet Power Amplifier
MJR7-Mk5 Mosfet Power Amplifier
Overview
http://www.renardson-audio.com/index.html
http://www.renardson-audio.com/archive.html
https://web.archive.org/web/20131016153631/http://www.angelfire.com/ab3/mjramp/
Old URLs from angelfire
https://web.archive.org/web/20130620050032/http://www.angelfire.com/ab3/mjramp/simple2.html
https://web.archive.org/web/20131016153631/http://www.angelfire.com/ab3/mjramp/
https://web.archive.org/web/20130625064334/http://www.angelfire.com/ab3/mjramp/golopid6.html
https://web.archive.org/web/20130615084449/http://www.angelfire.com/ab3/mjramp/pagetwo.html
https://web.archive.org/web/20130917105303/http://www.angelfire.com/ab3/mjramp/pagefour.html
https://web.archive.org/web/20130625075645/http://www.angelfire.com/ab3/mjramp/newamp2.html
https://web.archive.org/web/20130615083959/http://www.angelfire.com/ab3/mjramp/var.html
MJR9
MJR-8 Mosfet Audio Power Amplifier
MJR-8 Mosfet Audio Power Amplifier
MJR7-Mk5 Mosfet Power Amplifier
MJR7-Mk5 Mosfet Power Amplifier
Overview
http://www.renardson-audio.com/index.html
http://www.renardson-audio.com/archive.html
https://web.archive.org/web/20131016153631/http://www.angelfire.com/ab3/mjramp/
Old URLs from angelfire
https://web.archive.org/web/20130620050032/http://www.angelfire.com/ab3/mjramp/simple2.html
https://web.archive.org/web/20131016153631/http://www.angelfire.com/ab3/mjramp/
https://web.archive.org/web/20130625064334/http://www.angelfire.com/ab3/mjramp/golopid6.html
https://web.archive.org/web/20130615084449/http://www.angelfire.com/ab3/mjramp/pagetwo.html
https://web.archive.org/web/20130917105303/http://www.angelfire.com/ab3/mjramp/pagefour.html
https://web.archive.org/web/20130625075645/http://www.angelfire.com/ab3/mjramp/newamp2.html
https://web.archive.org/web/20130615083959/http://www.angelfire.com/ab3/mjramp/var.html
not a book (but a magazine in a outline of a book) nevertheless worth to mentioned here:
URL's from saved files of all articles from the magazine l' Audiophile (most of them from J.Hiraga)
index
(sorted by topic) and
Index of /revues/audiophile
(sorted by issue)
URL's from saved files of all articles from the magazine l' Audiophile (most of them from J.Hiraga)
index
(sorted by topic) and
Index of /revues/audiophile
(sorted by issue)
I am looking for a suitable gift for a friend for the coming Christmas.
Since he has been trying to get to grips with the common Class-D approaches with discrete parts (instead large-scale integration resp. LSI Class T/Class-D IC's) for some time, I would like to find a book that deals with repair service/troubleshooting of various Class-D circuits like e. g. B&O/SANYO ICEPOWER, Hypex UcD or NCORE® and PURIFI Eigentakt - go to
https://purifi-audio.com/eigentakt
Any Ideas where are such books available ?
Thank you very much.
Since he has been trying to get to grips with the common Class-D approaches with discrete parts (instead large-scale integration resp. LSI Class T/Class-D IC's) for some time, I would like to find a book that deals with repair service/troubleshooting of various Class-D circuits like e. g. B&O/SANYO ICEPOWER, Hypex UcD or NCORE® and PURIFI Eigentakt - go to
https://purifi-audio.com/eigentakt
Any Ideas where are such books available ?
Thank you very much.
You might consider my second edition of "Designing Audio Power Amplifiers" book. It includes 4 chapters that cover class D audio power amplifiers. It also includes a chapter on switch-mode power supplies, which are usually employed to power class D amplifiers.
Cheers,
Bob
Cheers,
Bob
You are not the only one interested in these closed source amps.f various Class-D circuits like e. g. B&O/SANYO ICEPOWER, Hypex UcD or NCORE® and PURIFI Eigentakt - go to
Good luck!
Hi Bob, thank you very much for this advice.You might consider my second edition of "Designing Audio Power Amplifiers" book. It includes 4 chapters that cover class D audio power amplifiers. It also includes a chapter on switch-mode power supplies, which are usually employed to power class D amplifiers.
Cheers,
Bob
A friend of me looks for a book concerning circuit topologies from legendary developers, especially those for which no patent was granted but nevertheless with fantastic sound quality - OTOH were considered by numerous other engineers to be not well thought out.
Some examples for such topologies
- power amp P170 and power amp section from Musical Fidelity Model "A1" - go to
Tim de Paravicini Amp Designs
MC A1 Introduce
Musical Fidelity P170 Power Amp (post #67)
- Yamaha's MX10000 (HCA-Circuit)
Yamaha's Hyperbolic Conversion Amplification (HCA) Circuit
- power amp section from integrated amp Cambridge Audio A3i
Cambridge Audio A3i repairs and mods
- Electrocompaniet Ampliwire AW100 (AW 100) and predecessors (Matti Otala)
Terje Sandstrøm
Electrocompaniet Ampliwire 100 (AW 100 AW100) different Versions
- Audiolabor ES200
https://audiolabor.de/images/audiolabor/info/es200-info.pdf
https://old-fidelity-forum.de/thread-23346.html
https://www.sthifi.com/bbs.php?act=view&id=112638&page=1
- AVM mono block from Günter Mania
stereoplay 1988 Monoblock from Günter Mania
AVM Evolution M3 - Schematic wanted
Some examples for such topologies
- power amp P170 and power amp section from Musical Fidelity Model "A1" - go to
Tim de Paravicini Amp Designs
MC A1 Introduce
Musical Fidelity P170 Power Amp (post #67)
- Yamaha's MX10000 (HCA-Circuit)
Yamaha's Hyperbolic Conversion Amplification (HCA) Circuit
- power amp section from integrated amp Cambridge Audio A3i
Cambridge Audio A3i repairs and mods
- Electrocompaniet Ampliwire AW100 (AW 100) and predecessors (Matti Otala)
Terje Sandstrøm
Electrocompaniet Ampliwire 100 (AW 100 AW100) different Versions
- Audiolabor ES200
https://audiolabor.de/images/audiolabor/info/es200-info.pdf
https://old-fidelity-forum.de/thread-23346.html
https://www.sthifi.com/bbs.php?act=view&id=112638&page=1
- AVM mono block from Günter Mania
stereoplay 1988 Monoblock from Günter Mania
AVM Evolution M3 - Schematic wanted
Last edited:
This is a very nice list of posts that are within some good threads. Thanks for posting this.
Cheers,
Bob
Cheers,
Bob
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