New GxCreamMachine.lv2

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folderol
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Re: New GxCreamMachine.lv2

Postby folderol » Sat May 19, 2018 4:46 pm

Frank Carvalho wrote:I believe the majority of Fender amps use negative feedback to achieve the clean signature Fender sound. Marshall used it too, while Vox AC30 amps so do not. It's one of those things that are important to the final amp sound. On Vox' original blue series Valvetronix, the negative feedback loop was variable, depending on the amp model, which meant feedback on Fender models, no feedback on Vox models etc., and this made the amp models feel very realistic.

I never had any dealings with fender amps, but the marshals were about 50-50. Also the NFB style used on those that had it was rather strange, and depended a lot on the age of the valves as to weather it was effective at all. You have to be very careful about NFB on amps with lovely phase-shifting transfomers and capacitive coupling :lol:

tramp
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Re: New GxCreamMachine.lv2

Postby tramp » Sat May 19, 2018 6:44 pm

tramp wrote:The power stage I've created from several circuit's were I most ain't know now from what I've take what.


Ah, just found it back, this is the concept behind the power stage:
https://www.ampbooks.com/mobile/amp-tec ... -inverter/

Image
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asbak
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Re: New GxCreamMachine.lv2

Postby asbak » Sun May 20, 2018 8:41 am

Supergeill Tramp \m/

Perhaps some lightning bolts for the GUI to emphasise the power?? :mrgreen:

Image

Image

http://www.clipartbest.com/blue-lightning-bolt

folderol
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Re: New GxCreamMachine.lv2

Postby folderol » Sun May 20, 2018 8:10 pm

Interesting article and schematic. Those EF806s valves seem to have a very similar spec to EF86, I'm guessing they are a better quality (more expensive) version. The EF86 was notorious for microphony and noise :(

I was surprised to see mention of cathode poisoning (Interface as the writer describes it). Very few people do! For those interested, it happens when there is zero or very little anode current, and the electron cloud round the cathode starts knocking bits out of the surrounding structure. These have a positive charge so get stuck to the cathode, contaminating the surface and reducing emission. It was a very common with monochrome TV CRTs. Those naughty little electrons get bored with nothing to do so start trashing the place :)

That output stage is one of many, many permutations of the idea, including one I used with an ECC82 dual triode... because I could :lol:
In theory the transformer tap should be slightly offset as the second valve will have a slightly lower output, but I don't think anyone actually bothers.

I don't know if people here are aware of it but those RGS resistors serve two functions. They limit the grid current in overdrive conditions, protecting the cathode, and also suppress parasitic oscillations. Along with the grid capacitance they create a low-pass filter 50-100kHz

tramp
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Re: New GxCreamMachine.lv2

Postby tramp » Mon May 21, 2018 5:58 am

What strikes my attention was this stance:
Amp Books wrote:Achieving full power at lower volume sounds downright appealing to those of us who love big power tubes but don't play the football stadium circuit. As for distortion, well, guitar players aren't known lose sleep at night over a few extra harmonics. So perhaps this circa 1953 concept deserves another chance.
8)
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barbouze
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Re: New GxCreamMachine.lv2

Postby barbouze » Mon May 21, 2018 7:17 am

I've read recently an interesting concept around re-thinking how guitar signal is amplified, maybe some guitarists here already know that:
Rockman and the work of Tom Scholz

tramp
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Re: New GxCreamMachine.lv2

Postby tramp » Mon May 21, 2018 5:41 pm

asbak wrote:Supergeill Tramp \m/

Perhaps some lightning bolts for the GUI to emphasise the power?? :mrgreen:

http://www.clipartbest.com/blue-lightning-bolt


I think more in the line of this one: :)
Image

barbouze wrote:I've read recently an interesting concept around re-thinking how guitar signal is amplified, maybe some guitarists here already know that:
Rockman and the work of Tom Scholz


Some interesting stuff, even if it just strike the basics of Tom Scholz work.
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carlv
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Re: New GxCreamMachine.lv2

Postby carlv » Fri Jul 20, 2018 3:22 pm

funkmuscle wrote:
CrocoDuck wrote:... Run one of those fuzz plugins in front of the cream machine and then use your neck pickup on your guitar and just try the guitar solo from Sunshine of Your Love from cream and you'll see you will almost nail the tone.


Way too lazy to re-learn that tune, but per your suggestion gave it a shot on this simple-er one of theirs...

Pretty happy with the sound of it. The end is the best part. :mrgreen:

As always, thanks for the great offerings, Hermann. 8)
Last edited by carlv on Sat Jun 15, 2019 9:40 am, edited 1 time in total.

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funkmuscle
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Re: New GxCreamMachine.lv2

Postby funkmuscle » Fri Jul 20, 2018 5:06 pm

carlv wrote:
funkmuscle wrote:
CrocoDuck wrote:... Run one of those fuzz plugins in front of the cream machine and then use your neck pickup on your guitar and just try the guitar solo from Sunshine of Your Love from cream and you'll see you will almost nail the tone.


Way too lazy to re-learn that tune, but per your suggestion gave it a shot on this simple-er one of theirs...

https://soundcloud.com/carlv-1/sloppy-spoonful

Pretty happy with the sound of it. The end is the best part. :mrgreen:

As always, thanks for the great offerings, Hermann. 8)

Nice vintage tone you got out of it there.

tramp
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Re: New GxCreamMachine.lv2

Postby tramp » Sat Jul 21, 2018 8:17 am

carlv wrote:
Way too lazy to re-learn that tune, but per your suggestion gave it a shot on this simple-er one of theirs...

https://soundcloud.com/carlv-1/sloppy-spoonful

Pretty happy with the sound of it. The end is the best part. :mrgreen:



Nice done, thanks for sharing here.
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carlv
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Re: New GxCreamMachine.lv2

Postby carlv » Sat Jul 21, 2018 11:02 am

The pleasure was all mine. Thanks for making that possible.

Arthurx
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Re: New GxCreamMachine.lv2

Postby Arthurx » Wed Aug 08, 2018 1:49 pm

Hi Tramp,
thanks again! Sounds great with a whah pedal and tremolo.
Ok, I have to admit, I dont sound a bit like Cream :lol: :lol: :lol:

Arthur

tramp
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Re: New GxCreamMachine.lv2

Postby tramp » Wed Aug 08, 2018 5:20 pm

Arthurx wrote:Sounds great with a whah pedal and tremolo.
Ok, I have to admit, I dont sound a bit like Cream :lol: :lol: :lol:


I'm glad you like it,Arturx. :)
For the case you upload somewere a sound made with this setup, don't forget to post a link here, I love to hear what people made out of the GxPlugins. :D
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Arthurx
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Re: New GxCreamMachine.lv2

Postby Arthurx » Thu Aug 09, 2018 4:18 pm

Hi Tramp,

here a jam fresh today. I was just playing with GX Cream fx and some singing along. The voice has a bit GX Saturator
No perfection.

Moon Light:
https://drive.google.com/open?id=1KUptR ... oLP6nYmymt

And Moving Sculptures:
https://drive.google.com/open?id=1UANNX ... pyELf-NGEN

Thanks again.
I use them almost daily and also on 20 performaces :D

Greetings Arthur

tramp
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Re: New GxCreamMachine.lv2

Postby tramp » Thu Aug 09, 2018 4:56 pm

Hi Arthurx

Nice ones. When I close my eyes while listen to them, I see a little place in a city, a passage, were people pass by, some of them get a bit slower while walking, some of them completely stop, to listen.
So, it's street-music, what I'm listen to.
It leaves so much space for dreams. Very well done.

Which wah pedal is it you use there?

regards
hermann
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