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| | |-+  My little Prinzetone research...		 « previous next »
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Author Topic: My little Prinzetone research...  (Read 24583 times)
mcinku
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« on: June 02, 2010, 11:24:33 AM »
I think this could be useful for anybody interested in this amp...

...this amp is based on non-verb BFPR (aa964) amp but in fact Prinzetone is not just a clone of this amp.
Nik changed tone stack and he used smaller V1a grid stopper and he increased V1 plate resistors (more gain). He also changed the vibro part a little bit, he added NFB pot and bias pot. Tone stack is now closer to Dumble Bluesmaster tonestack... it has more mids and different low end compared to standard BF Fender tone stack. (check the tonestack jpg)

I was so intrigued by all this changes that I already ordered my kit.... I plan on using bigger trannies to accommodate 6L6 power tubes for more clean headroom. It's already in the mail... can't wait to get it.  Grin

Here's the schematics and the freq. curve of the tonestack.  Wink

* tonestak.jpg (103.62 KB, 503x522 - viewed 1676 times.)

* Ceriatone_aa964.jpg (239.64 KB, 1471x934 - viewed 1039 times.)
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lightice
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« Reply #1 on: June 02, 2010, 05:25:11 PM »
Thanks, very insightful.

Maybe this version will take to a 12" speaker better than the originals were. As I read on tdpri that many reverted back to 10s after they tried on 12s.
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mcinku
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« Reply #2 on: June 02, 2010, 07:24:28 PM »
I use 10" with my Champ and it sounds fine but every time I use 12" cab it sounds even better. I like to have a huge low end but it has to be tight... so far I didn't get that from any 10" speaker I tried. Maybe if I would use 2 or even 4 but I don't like big cabs... that's not practical for me.
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mcinku
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« Reply #3 on: June 03, 2010, 09:49:01 AM »
I got these from Nik...
I hope he doesn't mind   Huh?


prototype gut shoots  Wink

* DSCF6893.JPG (597.29 KB, 1600x1200 - viewed 954 times.)

* DSCF6898.JPG (579.27 KB, 1600x1200 - viewed 966 times.)
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rayden44
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« Reply #4 on: June 08, 2010, 06:58:03 AM »
Just ordered one to my little corner of the world. Chassis kit only, will build it exactly as it comes to start with. Don't quite know what I'll pair it with yet. Probably the most I've spent on something I haven't heard, but from reading the info here about Nik and listening to the Champ Ultra + others... I'm confident it's going to be absolutely fantastic, and a great small gig / rehearsal amp.

I used to have a Laney VC 30 2x12. Too heavy to drag around everywhere (nearly 30kgs, a 4x10 deville is lighter), and too loud to crank at home without cracking the walls. Will be my first amp build so all good fun Smiley
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mcinku
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« Reply #5 on: June 08, 2010, 09:46:01 AM »
After my reserch I just placed an order as well.... obviously I don't know how this amp is going to sound but I have a gut feeling this is  going to be an awesome sounding amp.

..anyway we'll know soon I guess.
 Wink
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Fred.T
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« Reply #6 on: June 08, 2010, 09:24:16 PM »
Damn guys, you're making it so tempting!!  Grin  Grin  Grin
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pinkphiloyd
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« Reply #7 on: June 14, 2010, 06:36:20 PM »
Quote from: mcinku on June 02, 2010, 11:24:33 AM
I think this could be useful for anybody interested in this amp...

...this amp is based on non-verb BFPR (aa964) amp but in fact Prinzetone is not just a clone of this amp.
Nik changed tone stack and he used smaller V1a grid stopper and he increased V1 plate resistors (more gain). He also changed the vibro part a little bit, he added NFB pot and bias pot. Tone stack is now closer to Dumble Bluesmaster tonestack... it has more mids and different low end compared to standard BF Fender tone stack. (check the tonestack jpg)

I was so intrigued by all this changes that I already ordered my kit.... I plan on using bigger trannies to accommodate 6L6 power tubes for more clean headroom. It's already in the mail... can't wait to get it.  Grin

Here's the schematics and the freq. curve of the tonestack.  Wink

Other than the trannies and tubes, would you have to do anything else?  I'm amp naive and trying to learn.
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mcinku
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« Reply #8 on: June 15, 2010, 05:39:18 AM »
Quote from: pinkphiloyd on June 14, 2010, 06:36:20 PM
Other than the trannies and tubes, would you have to do anything else?  I'm amp naive and trying to learn.

For now I'm not changing anything else. I'll see later on if changing something would be a good move.
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pinkphiloyd
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« Reply #9 on: June 15, 2010, 12:35:45 PM »
Quote from: mcinku on June 15, 2010, 05:39:18 AM
Quote from: pinkphiloyd on June 14, 2010, 06:36:20 PM
Other than the trannies and tubes, would you have to do anything else?  I'm amp naive and trying to learn.

For now I'm not changing anything else. I'll see later on if changing something would be a good move.


Hmm.  Let me know how it goes.  I'm gonna put one of these together in the next month or so.
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mcinku
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« Reply #10 on: June 15, 2010, 12:47:40 PM »
Quote from: pinkphiloyd on June 15, 2010, 12:35:45 PM
Hmm.  Let me know how it goes. 

Sure thing, I will report just as soon as I'm done with my build.
 Wink
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« Reply #11 on: June 15, 2010, 01:34:41 PM »
You received yours yet mcinku? Mine will be here Friday, or maybe Monday if it doesn't make it Smiley
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mcinku
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« Reply #12 on: June 15, 2010, 05:35:37 PM »
Mine is at the customs... and this is going to take another day or two.
 Wink
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« Reply #13 on: June 16, 2010, 01:06:08 PM »
Looks like mine's been detained so will probably arrive Monday. Had hopes for the weekend since I have Monday off, could spend the long weekend sorting it. Oh well.
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« Reply #14 on: June 18, 2010, 11:39:27 AM »
Arrived today, hopefully assembled tomorrow Smiley
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