Racerxrated":31fntz1z said:
technomancer":31fntz1z said:
The HR and SLO circuits are not identical... and the DeYoungs are done. They were bought by an aerospace company. From what I recall reading Soldano is working with a German transformer company now, but we'll see when something actually comes out.
That said transformers are not that hard to duplicate, you use the same material and wind and it will sounds the same... and I would assume Soldano has the specs for their transformers.
I guess Bill Sundt told me over the phone that they were virtually the same circuit, so I believed him...I called asking for help removing the depth mod from the HR, sounded like a muddy mess.
So, those Onetics Trans were designed by a guy who helped design the SLO trans while they worked at DeYoung, and I've played a SLO Clone with those transformers and no cigar.
So, if those trans, designed by someone who worked at DeYoung and helped develop the SLO trans, couldn't get it right, who else will?
I do hope they can get it right, but I have my doubts.
The O'Netics is not intended to be an exact clone of the DeYoung, here's an old post of Bud's talking about it
https://www.harmonycentral.com/forum/fo ... 8/1463161-
"Hi all,
A friend of mine pointed me to an archived thread from years gone by. Said he thought I ought to set the record straight on the SLO transformers, once and forever.
http://acapella.harmony-central.com/arc ... 50567.html
My name is Bud Purvine, I design for O-Netics Ltd. In 2000 Martin and Eric DeYoung asked me to lunch and wanted to talk about designing and building transformers to unseat Mercury Magnetics. Apparently someone at MM had irritated them. My response was to forget about Mercury, they made a reasonable product for a reasonable price and they were in a death struggle with Shumacher. I could see no reason to interfere.
I did point out that we could make "voiced" output transformers and that the same amplifier circuitry could be made to play and respond like a Fender, Marshall, High Gain ultra clear, Blues or The Standard for all around playing. I said I thought five voices would be enough. Martin asked me if I wanted to see the original design specs for the SLO, that my by then deceased friend, John Wozniack had designed for the SLO. I said no, I did not want to copy what John had done. That anything I designed would be much broader in usefulness than a specific OPT design, for a specific set of parameters would be, as it was done in the 50's when John learned his trade. They then pointed to O-Netics making the SLO for Soldano and I said no to that also. I felt that John had done a superb job and that it should not be interfered with and that I was pretty sure Mike would think the same. He did.
The next step was a conference with Dave Krackey, here in Seattle. Dave provided a set of power transformer specs that he felt would be most useful for DIY builders, and so they have proven. We at O-Netics went ahead and designed and developed the five voices. Andy Marshall at THD was kind enough to collaborate with me in getting the voicing correct for each of the categories, now called, Hi Def, Retro M, Retro F, Blues and The Standard.
One of them, the Hi Def is held in high esteem by the SLO clone builders. Soldano now buys that OPT design, for all of their 50 and 100 watt amplifiers, except the SLO. This is a recent event, beginning last year and continuing through this year. De Young still makes the original SLO OPT, power and choke and will continue to do this.
If you want an original OPT for the SLO, you must try to talk Mike Soldano into selling you one, good luck in this. If you want to build a clone, with an OPT that does not change it's response due to power levels, dissonance, massive amounts of distortion and will still play perfect clean channel, get a Hi Def. Log on to the SLO clone web site for their opinions. These are available through
http://www.c3amps.com/ and more recently
http://www.rhodesamplification.com/ or you can contact me directly through the PM service here. To buy them from me will take you 8 weeks, C3 usually has them in stock, along with some other useful components.
There are a few manufacturers we have respect for, Mercury, Deyoung, Pacific, Hammond, Heyboer and a few others. All of them make similar OPT's, sort of an old school design philosophy. O-Netics has just taken another step in performance. Not to say it makes the other manufacturers obsolete, either. The OPT is the single most important component in your amp, period. How it interacts with the power tubes and the speakers will be 90% of what is wrong with any given amp and 70% of what is right. Our products might not suit your playing style and you need to experience parts from other manufacturers, just to educate yourself in what is available and what suits your art.
Bud "
Blues City also posted this info in the link below on his site as further confirmation.
