Anyone care to suggest resistor and capacitor values for this?
(http://i210.photobucket.com/albums/bb292/frequencycentral/tubephase.jpg)
I found it here: http://www.diystompboxes.com/smfforum/index.php?topic=32911.0
Tube phaser! Awesome! This is gonna be my next build ;D! But yeah, I'm not that experienced that I can just get resistor/cap values... someone figure them out please! :P
Well, I guess R3 is some input resistor... I don't know.
I recently experimented with fets for a phaser. I guess that fets could easily be replaced in my design with low voltage tubes since tubes and fets share almost the same topology. I do not know what tubes can add to the sound, but worth the try.
mac
I have played tube based phasers both low and high voltage and quite frankly they are nothing I would write home about. The low voltage versions add nothing special and take more power for the filaments which is just wasteful. The high voltage ones do not really bring that classic thought of "warmth" to the phase sound.
Overall if you are expecting something extra to come out by using tube don't have your hopes up but if you want people to oh and ah then knock yourself out.
Andrew
I guess that is because tubes are used as signal splitters, working at unity gain, so no mojo adds to the sound.
The deepness, warmth, etc, is more likely to be a consequence of design than tubes or transistors.
mac
What I guess is that tubes have "their own behaviour" but transfered.
If you can do it with low voltage components: all right !
But: can you tell what tubes will bring you ( I did not say nothing; and I have a friend who is on that "thung"),
However, if you're not experienced, how can you tell...
Go ahead with low voltage components: what will you loose...
Nothing: you will gain comprehension and not electrocution.
(I am not experienced)
Hi Mac.
Guess you dug it...
FHP
Do they sound a lot different than say a phase 45 or 90???
Cause that schematic looks a lot smaller that any phaser that I've ever seen.
Quote from: frequencycentral on July 19, 2008, 07:07:46 PM
Anyone care to suggest resistor and capacitor values for this?
P.T. ?
Hi Frank,
No, to be honest I had my doubts, and after reading Andrew post I´m not going to play with it :D
Also I´m not experienced with tubes.
mac
Rick, it seems you're a lot into tubes...I am happy you got this obsession!!! :icon_lol:
I guess it's time for breadboards...
Quote from: mac on July 21, 2008, 01:52:25 AM
Hi Frank,
No, to be honest I had my doubts, and after reading Andrew post I´m not going to play with it :D
Also I´m not experienced with tubes.
mac
Thanka Mac,
I am
not experienced with tubes ...
(AMEN )
(BUDDHA)
(ALLHA)
And go see... ( no one will be ) to pLay with tubes.
Yur emtering the : "take it for yourself" zone...
Havw fun !
But think about it...
Tubes aren't going to make a significant difference (if at all) in the sound of an allpass filter stage. They would probably make more difference if used as a control element. That's not because it's going to give you "tube sound" (whatever that is :icon_rolleyes:) but because it's yet another control method a la FETs, optical, etc...
Just looks like a big waste of power to me. My, how un-environmentally correct... :icon_mrgreen:
Yeah, but great to attract the girls...........come up and listen to my tube phaser!! :icon_lol:
Quote from: The Tone God on July 20, 2008, 06:51:05 PM
Overall if you are expecting something extra to come out by using tube don't have your hopes up but if you want people to oh and ah then knock yourself out.
Andrew
couldn´t agree more..
Some people have to control their "mojo impulses", i think you know how many people asks me if i build tube based effects, without caring if it sounds like crap..once a guy asked me if i could make a tube delay!!!!!
i told him..ok, for 25 million dollars i´ll do it, like 4 eniacs in a row, and using all the tubes supply available in the world now..ah.. and a power plant!.
i really dislike that "if it has a tube inside, then sounds great" mentality, i have heard awful, terrible things with tubes inside..just snake oil to me..
Quote from: StephenGiles on July 21, 2008, 09:40:17 AM
Yeah, but great to attract the girls...........come up and listen to my tube phaser!! :icon_lol:
My goodness yes. My wife worries if I leave the house "for parts unknown" with a 10-lb tube phaser in tow. She knows it for the babe magnet that it is. :icon_rolleyes: :icon_mrgreen:
well, i don´t know from which planet are those girls interesed in gear..
cause where i live, babes don´t have a clue of what a "pedal" is..
if you are interested to atract nerdy guitar geeks, maybe that´s a good build..
Quote from: Mark Hammer on July 21, 2008, 01:22:21 PM
Quote from: StephenGiles on July 21, 2008, 09:40:17 AM
Yeah, but great to attract the girls...........come up and listen to my tube phaser!! :icon_lol:
My goodness yes. My wife worries if I leave the house "for parts unknown" with a 10-lb tube phaser in tow. She knows it for the babe magnet that it is. :icon_rolleyes: :icon_mrgreen:
Just last week my wife asked me, "Is that a 10lb tube phaser in your pocket or are you just happy to see me?"
Sorry... Couldn't resist... :icon_mrgreen:
Um, I'm not sure women cleave towards men whose pants have pockets that can carry 10 pounds of anything. :icon_lol:
We used to ask the bowling alley guy [phone prank] "Do you have 16 pound Balls?
So design in some tube distortion?
Just kidding>long way around I think.
Perhaps boost input signal levels to the point at which tubes [even splitters or cathode followers] would distort some...then reduce it again at the end of the circuit [for 'normal' signal level output.
Crazy idea ? ...longway a round I think.
Quote from: dschwartz on July 21, 2008, 02:45:50 PM
well, i don´t know from which planet are those girls interesed in gear..
cause where i live, babes don´t have a clue of what a "pedal" is..
if you are interested to atract nerdy guitar geeks, maybe that´s a good build..
ToneGod: Andrew-Jessica
Girl that like pedals -or- nerdy guitar geek -or- split personality
???
I am all
phased out...
Girls that speak french know what is a "pédale" for sure: it's an homosexual.
They have no chance with "pedals". :icon_mrgreen:
Is Angela is really a girl ? :
http://www.angela.com/catalog/tubes/Guitar_Tubes.html
Maybe we could ask her her point of view...
QuoteYeah, but great to attract the girls...........come up and listen to my tube phaser!!
I knew tube phasers have a some mojo!!! Now I'm going to experiment with this!!!
Quotewell, i don´t know from which planet are those girls interesed in gear..
cause where i live, babes don´t have a clue of what a "pedal" is..
A long time ago I was talking to a barby girl. I told her I play electric guitar. She said "do you have to plug it to the 220V outlet?"
mac
QuoteA long time ago I was talking to a barby girl. I told her I play electric guitar. She said "do you have to plug it to the 220V outlet?"
"Yeah, it's not for everyone but I just gotta rock, ya know??"
Quote from: DougH on July 22, 2008, 07:08:21 AM
QuoteA long time ago I was talking to a barby girl. I told her I play electric guitar. She said "do you have to plug it to the 220V outlet?"
"Yeah, it's not for everyone but I just gotta rock, ya know??"
HAHAHAHAHA gud 'un!!!
i wish i had that kind of answers when i was younger and hornier..I´d just responded "JHHAHAAHHA, no, stupid bimbo!!"..what a mean smartass i was...well..AM...
Hey, I wish I had those answers when I was younger too. Lord have mercy, if I had known then what I know now... Youth is wasted on the young, bwahahaha! :icon_mrgreen:
QuoteHey, I wish I had those answers when I was younger too. Lord have mercy, if I had known then what I know now... Youth is wasted on the young, bwahahaha!
Well, my father told me when I was a kid what to do when you are with blonde barby girl that talks and talks and talks... :
kiss her! she can get angry, hit you and leave you alone, or you can end the night sleeping with her. In any case, she will not talk anymore... until the morning in case 2.
mac
Quote from: mac on July 23, 2008, 12:35:57 AM
QuoteHey, I wish I had those answers when I was younger too. Lord have mercy, if I had known then what I know now... Youth is wasted on the young, bwahahaha!
Well, my father told me when I was a kid what to do when you are with blonde barby girl that talks and talks and talks... :
kiss her! she can get angry, hit you and leave you alone, or you can end the night sleeping with her. In any case, she will not talk anymore... until the morning in case 2.
mac
For how long it went like this Marcel ?
I suppose also that the longer it last, the more it's hurting at the end ??? ;D .
I jumped from bed to bed all my life Frank! My mother gave up asking... begging me to find a girl and settle down. (Sounds like Cat Stevens)
Weren't we talking about tube phasers?
mac
Quote from: signalpaths on July 21, 2008, 01:06:54 AM
Do they sound a lot different than say a phase 45 or 90???
Cause that schematic looks a lot smaller that any phaser that I've ever seen.
The schematic is for just one stage. You would need a few!
Quote from: The Tone God on July 20, 2008, 06:51:05 PM
I have played tube based phasers both low and high voltage and quite frankly they are nothing I would write home about.
Andrew, can you give us any schematics for what you played about with?
Quote from: The Tone God on July 20, 2008, 06:51:05 PM
The low voltage versions add nothing special and take more power for the filaments which is just wasteful. The high voltage ones do not really bring that classic thought of "warmth" to the phase sound.
Overall if you are expecting something extra to come out by using tube don't have your hopes up but if you want people to oh and ah then knock yourself out.
Andrew
Yeah, I want to try it anyway!!
Give it a try and let us know how it sounds!
There are those,
who attenuate their tiny guitar-signal to have its phase shifted undistorted (FET/OTA),
and have to whine about clicking, ticking, and other noises;
and there are those,
who form the guitar to adult levels before playing with the phase (TUBE),
and don`t have modulation noise or objectable distortion.
I belong to those...
Funny, I don't see any significant attenuation on the phase90 schem- and it doesn't tick or click on the breadboard anyway, nor in the commercial product.
The trick iseither to read and remember, or to search the forum to find out other people`s problems:
e.g.: level (http://www.diystompboxes.com/smfforum/index.php?topic=66378)
e.g.: S/N (http://www.diystompboxes.com/smfforum/index.php?topic=51592.0)
Okay, you want it to work with line-level signals instead of being restricted to guitar-level.
I'm wondering what could be done with say a FET/Op-amp phaser circuit designed to run at 30-36v?
Quote from: frequencycentral on July 23, 2008, 06:58:08 AM
Andrew, can you give us any schematics for what you played about with?
Neither were my designs. The low voltage one was someone's DIY project. The high voltage one was a product someone was selling as an all tube Univibe I believe. The thing was huge and heavy. They built the power supply into a external case then ran the DC lines to the case with the audio circuit to keep noise down. All of it was mounted to a board. Big and heavy. Expensive from what I remember too.
Quote from: frequencycentral on July 23, 2008, 06:58:08 AM
Yeah, I want to try it anyway!!
Hey if you want to give it a shot go right ahead. It would be a good learning experience just don't get your hopes up that something magical will happen.
Andrew
What about nuvistors? I read somewhere that their succeptibility to distortion and clipping is similar to tubes, but current demand is much lower.
QuoteThe trick iseither to read and remember, or to search the forum to find out other people`s problems:
e.g.: level
e.g.: S/N
I had some distortion problems while I was breadboarding the P90. Many folks complain about this.
I built it with the same fets but new TL062s and it sounds fantastic. In the breadboard I was using a mix of TL071s and 741s.
Still the only differences I expect a priori between a tube phaser and a SS one is in the LFO section. Also some distortion using tubes. Not an expert.
mac