The Ultimate Tone Books by Kevin O'Connor

[LeftyStrat]

Has anyone bought the latest TUT? I'd love to know what Kevin has to say about Dumble designs.

[David Root]

I heard it was just a paragraph or two and certainly not worth buying the book just for that.

I have had TUT 1, 2, 3 and 5 for several years now and they are all useful. Also have the two Merlin books and the Pentode Press books. The PP books are like reading RDH4, pretty heavy going but thorough.

[Marioverkill]

Hello everybody !

New to this forum.I have in the last year taken a serious interest in learnig about guitar tube amps.I have been playing for about 20 years as a hobby.I have one year electronics(from 20 years ago) and have been working as a electrician for 12 years.I decided to really dive in about a year ago and started buying/reading books and doing small mods.I am reading the Merlin books and also the Richard Kuehnel.Richard's books are heavier in math and a little dryier than Merlin,but excellent books.These guys know their stuff.I plan on getting some of KOC'also.I believe John Suhr acquired the rights to use KOC's power scaling circuits for the Badger.

This is a great forum with a lot of useful info.I am happy to have found it.


Mario

[Reeltarded]

I discovered but nothing replaces learning from building amps or repairing amps.

Experience is everything!

Nice to have friends here too!

[erwin_ve]

Has anyone bought the latest TUT? I'd love to know what Kevin has to say about Dumble designs.

Yes I have that one.
Basic topology is explained. Similarities between boogie and dumble
Some info is useful; he basically sticks to the skyliner tonestack(like #124); simplified with drawings of rock and jazz mode. History of LNFB and a technical explaination. Mid boost explaination. How Dumble would go with a stiff clean power section and let the pre-amp do the magic stuff.
He's no fan of the inside trimpot's and does find it more ergonomic to have them on the frontpanel, for flexibility. IMO to point out HAD was stayin' in prototype design.
He 's offering a lot of design info how he would implement things with relays; 3 different boosts, mid-shift etc.

But some things are confusing; he's mentioning goop is a diversion of what really is going on; but he fails to mention what it is. I think he's reffering to lead dress? Anyway he doesn't go any further on that part.

Further on saying he's not seeing any fancy (technical) things in the Dumble design, so basically missing the point of what makes this design so incredible sounding.
Mr. O' Connor has a incredible tech know-how.
This book is a must if you want to go deeper on the London power scaling theory, not so much for the Dumble tech stuff.

[pdf64]

[/quote]Ah yes they are the same person I was thinking about two other books the analogy of a 5f6 and JTM45 but can't remember the dudes name and I am not at home to look at the books. [quote]

Richard Kuehnel?
http://www.ampbooks.com/home/classic-ci ... n-summary/

[pdf64]

Richard Kuehnel?
http://www.ampbooks.com/home/classic-ci ... n-summary/

[pdf64]

Richard Kuehnel?
www.ampbooks.com/home/classic-circuits/bassman-summary/

[pdf64]

Sorry for multiple post - there was a site glitch which said the post hadn't been sucessful.
How can I delete the above repeat posts?

[Cygnus X1]

Just edit the repeat posts with something amusing or mundane.

I use "El Double'," or "El Triple'..." unintended, for example.

Or edit the posts with additional info and make it look intentional.
Something some of us do with our amp builds!
"Yes, I meant to drill those holes and plug them...for future modifications, of course".

[gingertube]

I'm a design engineer in the day job so have a "significant" technical library at home for the Tube HiFi and Git Amp design and build hobby work.
The entire TUT series in in my collection, very worthwhile references.
If you are just interested in his whole amplifier designs then TUT3 and TUT5 are the ones you want. I built a "Standard" from TUT5, everyone who has played through it raves about it. The designs I use now certainly incorporate a lot of what I learned from Kevin's books.
The latest (TUT6) has a final chapter dedicated to high gain preamps which has plenty of valuable info. The Dumble discussion is as pointed out above fairly brief.
Cheers,
Ian