ARE YOU A BAD ENOUGH DUDE

Do-it-yourself pedal building

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frequencycentral
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Re: ARE YOU A BAD ENOUGH DUDE

Post by frequencycentral »

Kellanium wrote:Even if you used subminis, it would still have to be massive.


If I built this circuit I'd use 2 x 6112 subminis. It'd fit in a 1590B, including a SMPS or charge pump HV supply - hell, a transistor BM is huge and mostly empty space.

Kellanium wrote:Not to mention the power supply required.


Power consumption would be 12v @ ~500ma - running the two 6112's heaters in series limit's the combined heater draw to 300ma, then a small amount for the anodes and a nice wedge left over for the SMPS. If I was gonna do it I'd use a NE555 based SMPS running at 150v.

Kellanium wrote:It would seem to me to be much easier, cheaper, and safer to just stick with what works. IF it ain't broke...


Where's the challenge in being easy, cheap and safe???

......anyways, I'm not planning to build one (unless someone commissions me), I'm down with Scruffie - tubes should be used to overdrive other tubes, not to clip fkg diodes.
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Re: ARE YOU A BAD ENOUGH DUDE

Post by Scruffie »

Kellanium wrote:Doesn't using tubes instead of transistors totally defeat teh the point of having it as a pedal? Even if you used subminis, it would still have to be massive. Not to mention the power supply required. It would seem to me to be much easier, cheaper, and safer to just stick with what works. IF it ain't broke...

With a MAX1771 charge pump, you could probably get it all in the same sized enclosure as the current little big muff, maybe even using full sized tubes, you'd just need a 12V supply for the heaters which could be increased up to around 240 on the plates.

EDIT:Wait... How the hell did I manage to answer this post after Frequency Central already did it?

Not undermining you there or telling you twice Kellanium, honest mistake
Last edited by Scruffie on Fri Aug 12, 2011 11:57 am, edited 1 time in total.
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McSpunckle
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Re: ARE YOU A BAD ENOUGH DUDE

Post by McSpunckle »

There's some Marshall amp... seems like some version of the JCM900 that uses diodes to clip.

I guess it's no different than using solid state distortion (a pedal) to supplement your amp's distortion... but, like... I dunno. It's wrong.
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Re: ARE YOU A BAD ENOUGH DUDE

Post by Christopher »

this thread title is fucking misleading I came in here expecting to fight ninjas and go out for burgers with elected officials
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Re: ARE YOU A BAD ENOUGH DUDE

Post by theavondon »

McSpunckle wrote:There's some Marshall amp... seems like some version of the JCM900 that uses diodes to clip.

I guess it's no different than using solid state distortion (a pedal) to supplement your amp's distortion... but, like... I dunno. It's wrong.

I thought most JCM900s except for the SL-X used clipping diodes. They sound fine to me, but yeah, I dunno.
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Re: ARE YOU A BAD ENOUGH DUDE

Post by McSpunckle »

theavondon wrote:
McSpunckle wrote:There's some Marshall amp... seems like some version of the JCM900 that uses diodes to clip.

I guess it's no different than using solid state distortion (a pedal) to supplement your amp's distortion... but, like... I dunno. It's wrong.

I thought most JCM900s except for the SL-X used clipping diodes. They sound fine to me, but yeah, I dunno.


That's probably right. I don't know anything about any specific amp line.
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Re: ARE YOU A BAD ENOUGH DUDE

Post by Scruffie »

Without looking schematics, it may use diodes in the Pre-Amp to clip but then it has a Power Amp to get the nice tube distortion and headroom, where as here, we'd treat it as a stand-alone preamp.

I mean people use diodes in tube screamers to drive there tube amps but the way the Big Muff works just makes it feel kinda not worth it, all the saturation in a big muff comes from those two driven stages of clipping, so adding tubes doesn't really accomplish anything, it's still gunna get massively clipped and have the signal limited... not saying it wouldn't sound different, I just think there are other circuits that tube adaptions could work better for.

Maybe a Super Tonebender (which only has the one stage of clipping) and using LEDs for a high forward voltage could be kinda cool, yeah it's still clipped but less and the tubes will get driven harder.

Or maybe just me and Frequency Central share the same mental block that the two don't go together where as they're perfectly fine in reality.
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