MOTM

I have a TubeWorks Blue Tube that I use for everything from warmth to crunch. 
 There is a two-channel rackmount version that is quite nice too.

One thing you have to watch, especially with high-output devices like MOTM, 
is that you keep your input level to the unit fairly low so that you can 
maximize the range of sounds within the device.  Otherwise everything will be 
massively distorted (sometimes good).

Ivan

I'm curious as to how you fixed the power supply?

(I'm sorry if this is veering off-topic...)

Regards.
-------------------------
John Blacet
Blacet Research Music Electronics
http://www.blacet.com
-------------------------
blacet@...
-------------------------
Are you on our mailing list?
http://www.blacet.com/mailform2.html

In a message dated 10/31/00 5:13:05 AM, synth1@... writes:

<< It means no way in HELL am I offering a module with a 250V power supply.
 >>

How about as a D-I-Y kit without the PSU?  Sort of an experimenters kit?

Ivan

I bought a PAIA Tubehead and, after fixing the underdesigned power supply, I got a real nice tube preamp. I'm far from being a tube expert but I know it runs the tube at about 35V by stepping up the 9V delivered from the wall wart. (Isn't this called "starved plate" design?) It's not the best sound but it's compact, relatively cool (low temp) and does wonders for overly clean signals.

I would think that most tube preamps are not MOTM compatible because the 10V MOTM signal levels would be too much for useful operation. I'd love an MOTM VC tube preamp! And maybe 250V in the circuit just isn't necessary.

John Speth
Molectron Detector, Inc.
http://www.molectron.com
mailto:johns@...

--- In motm@egroups.com, John Speth <johns@m...> wrote:
> I bought a PAIA Tubehead and, after fixing the underdesigned power 
supply, I
> got a real nice tube preamp.  
Oh yeah? What fix did you make? I've got a TubeHead collecting dust 
because of the noisiness and underwhelming sound. I can only get it 
to crunch, it's not subtle at all.

Moe

----- Original Message -----

From: Dave Bradley <daveb@...>
Oh yeah? What fix did you make? I've got a TubeHead
collecting dust because of the noisiness and underwhelming
sound. I can only get it to crunch, it's not subtle at all.

My point exactly concerning TubeHead sound.  Good for "that one" sound, but
not for subtle introduction of harmonics.  Yes.  Inquiring minds want to
know what kind of power supply changes you made.  However, I still don't see
that design doing what I am really looking for.

Larry H

WHaaahahahahahaha! (evil laughter)

Paul S.
always a step ahead

> 
> How about a module to introduce even-order harmonics, like an 'aural
> exciter' module? Rather than going for just "distortion," which is kinda
> colloquial for odd-harmonic distortion.
>

In a message dated 10/31/2000 6:40:19 PM, synth1@... writes:

>WHaaahahahahahaha! (evil laughter)
>
>Paul S.
>always a step ahead

Good to hear! Of course the logical extension of this is go VC "distortion," 
and VC odd to even (kinda like through zero). This would really compete with 
the Wave Multipliers!

JB

>> How about a module to introduce even-order harmonics, like an 'aural
>> exciter' module? Rather than going for just "distortion," which is kinda
>> colloquial for odd-harmonic distortion.

I'm really interested in what you find here Larry. I have a PAiA "Stack in a 
Box" (which neither sounds like a stack, nor comes in a box!) which is the 
guitar optimized Tubehead. I find I need to use other pedals to get it really 
nasty sounding -- I find the knobs labeled "Drive" and "Crunch" to be rather 
misleading. I agree with your idea about this kind of circuit not pushing the 
signal to go nonlinear, which would be more interesting and useful. 

I should look at the other commercial products that were mentioned 
(especially for my guitar) and I think we've previously discussed that 
saturating the output transformer has a lot to do with the grinding sound 
which I'd like to get. And of course VC inputs would make this very useful 
for many modular applications. I think Eric Barbour had a tube based 
wave-mangling device (possibly VC but not a kit as I recall) which got some 
good reviews on diy. I can't remember the name of it though.

JB


In a message dated 10/31/2000 3:42:21 PM, jlarryh@... writes:

>Re: I've got a tube up my a**I own a Tubehead.  I like it OK for what it
>does (great organ distortion for those Deep Purple like tones).  However,
>it is not the sound I am looking for.   You are right about the (starved
>plate design being a very low voltage).  However, that is more of an abortion
>of the signal than the pushing into the non-linear response area

Good! Good! Stay ahead!! :-) 



 -----Original Message-----
From: 	Paul Schreiber [mailto:synth1@...] 
Sent:	Tuesday, 31 October, 2000 8:48 PM
To:	motm@egroups.com
Subject:	Re: [motm] Re: I've got a tube up my a**

WHaaahahahahahaha! (evil laughter)

Paul S.
always a step ahead

> 
> How about a module to introduce even-order harmonics, like an 'aural
> exciter' module? Rather than going for just "distortion," which is kinda
> colloquial for odd-harmonic distortion.
>