"Le Craquement Thermionique" !!

[Taylor]

Wow, that's nice. Most of the time when I see pedals I like, I think, "I should build one like that." But here I just want to buy that one from you. 

[frequencycentral]

Wow, that's nice. Most of the time when I see pedals I like, I think, "I should build one like that." But here I just want to buy that one from you. 

Yeah slade just put my effort to shame....   He is truly a pedal-making-deity. Even I want his instead of mine.

[Slade]

Wow, that's nice. Most of the time when I see pedals I like, I think, "I should build one like that." But here I just want to buy that one from you.  

Hey! Thanks, Taylor. I'm making another one to sell (under Rick's authorization and after offering him hundreds of etched PCBs.... joking!) if you're interested

Cheers!

[phector2004]

wow! You never cease to impress, Slade

It's got a real nice retro look to it, and the border makes it look a lot like it has a metal faceplate
Interesting vent pattern too

It's a shame... I wanted to build this, but now I know mine's gonna suck!  

[SpencerPedals]

I'm getting a broken link on the superheated version of the clips.  Anyone else?  That clean treble boost sounds killer; I'm excited to hear what the rest sounds like.

[Slade]

Try now, please, just re-uploaded the file, the link is the same.
I'm recording something through my cab sim soon showing more settings.

[SpencerPedals]

Works now.  Thank you, sir.  Sounds very crossover distorted in the superheated mode.  This would be the one that pulls me into submini territory, if I ever get all of my populated boards from the too-hot-to-solder summer boxed up.

[Labaris]

Congratulations Rick, it's a great sounding pedal.
I'm really starting to like tubes...

[Slade]

Hey, I've just recorded a mix of some settings with the pedal through my cab sim.
Rythm guitars L and R are in Triode/Hot mode. Lead is Pentode/Superheated mode.

I just recorded the first thing that came to my mind when inserted the drum loop... and it's 2 am here... Ok, sorry for the bad playing

Here it is:

http://dl.dropbox.com/u/3565959/Mix.mp3

Cheers!

[Kearns892]

I noticed Aron no longer carries the subminis in his store. I ran some quick searches on google and other common component suppliers but couldn't find anything. Any suggestions on where to source these?

[frequencycentral]

Small Bear $8.25: http://www.smallbearelec.com/Detail.bok?no=807

.....or try Ebay, there are some currently listed in the UK and USA.

[Slade]

Here's the layout and PCB I used, we planned this along with Rick, it's a little smaller than the other and fits better in a 1290B.



Enjoy!
Fernando.-

[Hupla]

Hey, I've just recorded a mix of some settings with the pedal through my cab sim.
Rythm guitars L and R are in Triode/Hot mode. Lead is Pentode/Superheated mode.

I just recorded the first thing that came to my mind when inserted the drum loop... and it's 2 am here... Ok, sorry for the bad playing

Here it is:

http://dl.dropbox.com/u/3565959/Mix.mp3

Cheers!

Wow much prefer the sounds you got in that to your other recordings. I thought it sounded too much like a fuzz but Im really liking those sounds now.

[fatfoohy]

Could i use a 7805 instead of a 7806? smallbear doesnt have a 7806, or is there another alternative to a 6 volt regulator i could do a simple voltage divider instead, but im not sure, any ideas?

[frequencycentral]

Could i use a 7805 instead of a 7806? smallbear doesnt have a 7806, or is there another alternative to a 6 volt regulator i could do a simple voltage divider instead, but im not sure, any ideas?

The alternative to using a 7806 it to use a 7805 with 2 x 1n4148 between pin 2 and ground. As each diode has a forward voltage of 0.6v, that will get you 6.2v at the output of the 7805, which is pretty much ideal for the tube's heater.

[fatfoohy]

ahhh, thank you very much! i cant wait to get this pedal working, im going to use it on bass, so hopefully it'll handle it well, i'll post samples if you guys are interested once im done

[Govmnt_Lacky]

I am looking for a good tube project right now but I only have some 12AX7s laying around. Could that tube be used in this build? I am new to tube builds so go easy please. 

[frequencycentral]

I am looking for a good tube project right now but I only have some 12AX7s laying around. Could that tube be used in this build? I am new to tube builds so go easy please. 

12AX7 will not work in this circuit, 12AX7 is a high mu dual triode, whereas 5840 is a submini pentode. Though it would be possible (with a little work) to do something similar with 12AX7 if you were to base it on the 6111 Thermionique schematic I posted on page 1. The 12AX7 would however really need more than 12 volts at the anodes show it's true potential. For a cool 12AX7 based circuit take a look at Renegadrian's Tube Star: http://www.diystompboxes.com/smfforum/index.php?topic=74888.0

[Govmnt_Lacky]

12AX7 will not work in this circuit, 12AX7 is a high mu dual triode, whereas 5840 is a submini pentode. Though it would be possible (with a little work) to do something similar with 12AX7 if you were to base it on the 6111 Thermionique schematic I posted on page 1. The 12AX7 would however really need more than 12 volts at the anodes show it's true potential. For a cool 12AX7 based circuit take a look at Renegadrian's Tube Star: http://www.diystompboxes.com/smfforum/index.php?topic=74888.0

Thanks for the heads up Rick. I read over the thread and sadly, it appears that the design is based on the 12AU7 or 12AT7s 

Any other ideas with the AX in mind?

[fatfoohy]

hmmm.....reading the datasheet for a 1n4001, and someone double check me, it seems to have a 1 volt forward voltage, that'd be better than having to use 2 diodes imo, someone please check my findings though