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PostPosted: Mon, Nov 05, 2018 12:51pm 
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Guytron does this with EL-84's, service life= 3-6 mos.

If you don't like this idea, keep your comments to yourself.

For my fellow enthusiasts with a clue, how was this done at 545v?

Extra high primary Z on the OT to prevent over dissipation?

High screen resistors to protect screens? Separate supply?

What gives?

DO TELL!

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PostPosted: Mon, Nov 05, 2018 3:50pm 
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meth


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PostPosted: Wed, Nov 07, 2018 3:52pm 
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Yup, Meth!!! :lol: :LOL:

It's in the design. I read the following readings off of proto #1 and over 100% in LO and HI modes!:

V7 - 52.0mA @ 526VDC = 109.4%
V8 - 50.5mA @ 526VDC = 106.3%
V7 - 31.0mA @ 440VDC = 54.6%
V8 - 35.2mA @ 440VDC = 62.0%


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PostPosted: Thu, Nov 08, 2018 1:01pm 
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Equ1nox wrote:
Yup, Meth!!! :lol: :LOL:

It's in the design. I read the following readings off of proto #1 and over 100% in LO and HI modes!:

V7 - 52.0mA @ 526VDC = 109.4%
V8 - 50.5mA @ 526VDC = 106.3%
V7 - 31.0mA @ 440VDC = 54.6%
V8 - 35.2mA @ 440VDC = 62.0%


Right, so what is it in the design that allows for this? Do any other amp makers do this? I want an amp that can do this, but the CCV/Cameron situation is sketchy.

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PostPosted: Wed, Nov 21, 2018 12:59pm 
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No magic, just biased hot.

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PostPosted: Tue, Nov 27, 2018 11:26am 
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scottosan wrote:
No magic, just biased hot.


Well it's biased at 100% in AB push-pull, which with a regular primary Z for EL-34's and regular screen current will red-plate tubes in most amps. I recall someone saying the CCV had higher Z and reduced/regulated screen current to maintain stability.

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PostPosted: Sat, Dec 01, 2018 11:09pm 
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My CCV burns the fuck out of the power tubes, even when biased correctly. Something's definitely wrong with it

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PostPosted: Sun, Dec 02, 2018 10:30am 
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keennay wrote:
My CCV burns the fuck out of the power tubes, even when biased correctly. Something's definitely wrong with it


Send it to me. I'll take care of it! I have Cameron CCV exact clone right down to the PCB if you want that and we can even swap.

Man, problems with your CCV. Problems with you Atomica....can someone give this brother a break!


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PostPosted: Mon, Dec 03, 2018 10:38pm 
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Equ1nox wrote:
keennay wrote:
My CCV burns the fuck out of the power tubes, even when biased correctly. Something's definitely wrong with it


Send it to me. I'll take care of it! I have Cameron CCV exact clone right down to the PCB if you want that and we can even swap.

Man, problems with your CCV. Problems with you Atomica....can someone give this brother a break!


lol. His amp copy is so good he’s willing to trade it for your “broken” one. :hys:

Give Mark a call if you think something is wrong.

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PostPosted: Tue, Dec 04, 2018 5:55pm 
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toot


Last edited by Equ1nox on Fri, Dec 07, 2018 7:48am, edited 2 times in total.

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PostPosted: Wed, Dec 05, 2018 9:53am 
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Equ1nox wrote:
What he SHOULD do is get rid of the CCV (and Atomica) and roll the money over into my "313" vintage amp which is superior to the CCV actually! The 313 can do everything the CCV can do, but MORE. However, the CCV cannot do what the 313 can do.

Likewise, it is completely unique and patented with specific intellectual property that in 100 years since the first audio amplifiers have existed....NO ONE has come up with the design and the way I do it! :)


Nice, now you know what someone should do more so than they would themselves?

Tell you what, send me one of your amps and let ME decide how good it is and if it is better than the CCV. If the amp is a good as you say it is, I'll buy it. Let someone else toot the horn instead of yourself.

No excuses, what have you got to lose. I'll be 100% honest.

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PostPosted: Wed, Dec 05, 2018 4:20pm 
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Equ1nox wrote:
What he SHOULD do is get rid of the CCV (and Atomica) and roll the money over into my "313" vintage amp which is superior to the CCV actually! The 313 can do everything the CCV can do, but MORE. However, the CCV cannot do what the 313 can do.

Likewise, it is completely unique and patented with specific intellectual property that in 100 years since the first audio amplifiers have existed....NO ONE has come up with the design and the way I do it! :)


What's the patent number, I want to check out this amazing innovation


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PostPosted: Fri, Dec 07, 2018 11:02pm 
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technomancer wrote:
Equ1nox wrote:
What he SHOULD do is get rid of the CCV (and Atomica) and roll the money over into my "313" vintage amp which is superior to the CCV actually! The 313 can do everything the CCV can do, but MORE. However, the CCV cannot do what the 313 can do.

Likewise, it is completely unique and patented with specific intellectual property that in 100 years since the first audio amplifiers have existed....NO ONE has come up with the design and the way I do it! :)


What's the patent number, I want to check out this amazing innovation


LOL, he deleted his post. Glad we captured it.

Now, about those “patents”... :lol: :LOL:

I was being honest about wanting to try one of his unique amps loaded with intellectual property. Guess they aren’t as good as he claimed? :lol: :LOL:

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PostPosted: Fri, Dec 07, 2018 11:30pm 
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Rosza Amplification in or around Michigan somewhere, the 313 is his CCV ish model (but with more features), there is a Facebook page as well.


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PostPosted: Sat, Dec 08, 2018 8:38am 
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paulyc wrote:
Rosza Amplification in or around Michigan somewhere, the 313 is his CCV ish model (but with more features), there is a Facebook page as well.


So it’s a CCV clone with tons of intellectual property? Haha. We all know he copied his stuff from Mark. He was buying up Cameron amps to blueprint them. Some intellectual. :lol: :LOL: Its so good he wouldn’t even send me one to try out.

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PostPosted: Sat, Dec 08, 2018 8:49am 
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Well, if I owned an amp company I don’t think I’d send a guy I don’t know from Adam an amp either, and if I did I probably wouldn’t be in business very long lol


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PostPosted: Sat, Dec 08, 2018 11:19am 
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I don't know man, psychodave can sell some amps no doubt.
So this guy's another Mark ripoff? (facepalm) Haven't we reached full saturation on this shit yet?


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PostPosted: Sat, Dec 08, 2018 1:09pm 
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I’m not saying he can’t, but would you send an amp to a guy you really didn’t even know ? I’m not defending Rosza or throwing him under the bus, I’ve got no dog in this fight, just putting the info out there.


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PostPosted: Sat, Dec 08, 2018 5:47pm 
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I was sincere, I'm always curious to see new and different approaches to stuff... ah well


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PostPosted: Tue, Jan 08, 2019 11:49am 
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GUISE!

Back to the topic at hand...

How is this Bias achieved? Is it cathode biased A-B? That would make more sense. The bias is the key to the tone, I'm telling you.

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PostPosted: Thu, Jan 10, 2019 11:19pm 
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Equ1nox wrote:
keennay wrote:
My CCV burns the fuck out of the power tubes, even when biased correctly. Something's definitely wrong with it


Send it to me. I'll take care of it! I have Cameron CCV exact clone right down to the PCB if you want that and we can even swap.

Man, problems with your CCV. Problems with you Atomica....can someone give this brother a break!


We’re they actually Mark builds or the later half hearted attempts?

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PostPosted: Thu, Jan 10, 2019 11:21pm 
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psychodave wrote:
Equ1nox wrote:
keennay wrote:
My CCV burns the fuck out of the power tubes, even when biased correctly. Something's definitely wrong with it


Send it to me. I'll take care of it! I have Cameron CCV exact clone right down to the PCB if you want that and we can even swap.

Man, problems with your CCV. Problems with you Atomica....can someone give this brother a break!


lol. His amp copy is so good he’s willing to trade it for your “broken” one. :hys:

Give Mark a call if you think something is wrong.


Yes Ken. This, I would listen to Dave.

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PostPosted: Thu, Jan 10, 2019 11:28pm 
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Nigel wrote:
GUISE!

Back to the topic at hand...

How is this Bias achieved? Is it cathode biased A-B? That would make more sense. The bias is the key to the tone, I'm telling you.


You seem quite convinced. I tend to believe the high bias will only stiffen up the action and cause undue issues. I was on the phone with Mark earlier. Wish I had known I would have asked. Why don’t you just ask the maker his self?

Peace out, DCH

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PostPosted: Mon, Jan 14, 2019 10:18am 
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Guys, I was able to get some results this weekend and would like to share them with you:

#1: Running double impedance on EL34 type tubes allows for 100%+ idle bias, with stability.

If you crank the amp, it will get loud, and not terribly over dissipate the tubes.

440v B+ with about 70-74ma gets the JJ E34L and KT77 at around 30 watts, which is the sweet spot.

Cranked to 5 and played, a bias of 80-90 is seen, but rarely 100. The M60 OT is 3K5, 8 ohm tap to 16 ohm load makes for 7K.

The response is like an acoustic guitar, simply engrossing.

Now I hit the half power switch which gets me to 220v, and then use the 16 ohm tap to 16 ohm load for a 3K5 primary Z.

Almost the same tone, plus longevity.

You guys really need to try running your amps this way if they have the build quality for the heat/flyback voltage.

HOLY SHITSNACKS!

Mark is a fucking genius!

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PostPosted: Tue, Jan 15, 2019 11:43pm 
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Looks like full power mode brings the eventual red plate of death...but lord, the tone. How did Mark get them stable st 100+ more volts??? This Wizard magick must be known!

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