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I think that since you are only connecting one triode you should really use a 1K6 resistor and a 120uF capacitor, that way the voltage drop across the resistor stays the same as the original. I also doubt you would notice any difference whichever way you do it, if you really want to be correct...

What exactly do you mean by "pull down resistors" ? If it is to reduce any pops when changing the switches then I think the best way is to pre-charge all the un-used caps to the same voltage they they will be charged up to when in circuit, I usually do this on high voltage caps with a high value...

I take it you want the Bassdude to play guitar on, I usually adapt the circuits to suit a Bass guitar more but there are some mods described in "The Mod Squad" thread I started. The mods you describe all sound ok to me if you want to make the sound brighter with less bottom end, I believe I...

There are drill guides and art work for all the C2CE projects on the C2CE webpage, there is white artwork for dark boxes and black artwork for light boxes. I get them made at Tayda since they can drill and apply the artwork to any box they sell...

I like to read Rob Robinettes amp pages and I thought I might make myself a small 1-2watt Soldano SLO preamp and a separate poweramp and stick them in pedals, after I drew up the preamp schematic in KiCad I thought it looked very familiar and guess what ? It is nearly an exact copy of the Mesa...

Check it in the TSC calculator first so you can see whats happening, remember to leave the Mid pot on 10 as the Nobelium uses R21 instead of a Mid pot. Just click on "Edit" and change values and then click "Apply" and then you can slide the Bass and Treble pots to see what happens, you can also...

I built mine with a volt/ammeter from Tayda that cost me $1.59 US and put it in a 1590A box with 2 9v sockets , cheaper then the kit. https://www.taydaelectronics.com/led-dc-dual-display-voltmeter-red-blue-led-0-28inch.html...

I think the best option is to buy a power supply from the C2CE shop now that there are power supplies available. I am going to buy several power supplies with my next PCB order so I can have a power supply available every time someone borrows a Sushi or C2CE pedal from me. I think for $13 each...

I think what the new switches on that Nobelium that is for sale do is connect the 1/4" input directly to the 1/4" output, also the XLR transformer is connected directly to the 1/4" input socket. It is a way of bypassing all the electronics in the pedal itself, if you loose power to the pedal you...

The most common way to bypass a fender tone stack is to lift the ground leg on the MID pot, the Nobelium has a resistor instead of a MID pot so just disconnect R21 2k7 ohm resistor and that should work. You could also replace R21 with a pot to make a MID pot if you want to experiment more with...

I just noticed that it looks like the 1/4" output seems wired in reverse, the signal is wired to the shield ring and the ground is wired to the tip on the socket. If the 1/4" out works the socket must be insulated from the box by the powder coating only, it would be best if the wires were...

The original Bassman that the Bass Dude is based on had two 12AY7 tubes in it, I have been thinking of trying some 12AY7's in my Bass Dude as well. It sounds great with the 12AY7 and the high speck 12AX7 tube you used in yours, I might try that as well now. Now I have to get myself some 7025...

Mr Sushi I notice that the Nobelium pedal that has popped up in the C2CE shop has a mod for the 1/4" and XLR outputs to have a Bypass / Preamp selector switch, I was wondering if this could be added to the Drill files and Artwork files for the Nobelium. It would be best as a separate modded...

I think I saw 2 different schematic that used all 6 triodes, I think the 6505 had all 6 in one channel but there was another version where there were 5 used for the drive channel and one was used for the clean channel. The clean channel used the first and last 2 triode of the drive channel if I...

From what I have read today they are all closely related along with the SLO 100, Van Halen used the SLO 100 which is what Peavey used to make their 5150 (Named after Van Halens 5150 Studio), when Van Halen left Peavey they renamed the 5150 the 6505. I would use the circuit that uses all 6...

Ok, I'll show my ignorance and say I doubt it would be a Marshall 5150 since that's a solid state amp, that leaves my limited knowledge with a Fender 5150 and an EVH 5150 and a Peavey 5150 . There could be more but that is it for me at the moment. What 5150 are we looking at here ?

I haven't tried it yet myself but when I do it will be on a new PCB, I just wanted to point out the possibilities that exists with the PCB. If you do build one please post some pics of your build and let us know what you think. Cheers Mick

I don't know if you would need the pentode in the circuit, the 200S had a 6AN8 pentode/triode combination tube after the tonestack but we would not need the triode part of the 6AN8 for a preamp pedal. Just have to find a good replacement tube for the pentode. f you don't need the pentode then it...

That looks like a nice and easy mod, I thought you would like the switching with the DPDT on-on-on switch since it just makes more sense. (Thanks Passinwind for that idea) Did you work out the capacitance with C2 in series with the voicing caps ? I think that C2 will affect the value of the wet...

It sounds like you got it working really good Samuel, is there any reason to have C2 so high ? I would have thought a cap to filter anything below 30Hz would be ok since a 5 string is needed to go that low, what value would you need for C2 to equal 30Hz or even 40Hz ? Also, could you draw up...