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    Nobelium - tube bass preamp project

    I would wait for the C2CE Unagi one to come back in stock but if you must have a Jensen try here:\ EDIT: Never mind, it looks like they are sold out. https://store.generalguitargadgets.com/products/jensen-jd-db-epc-transformer?variant=32415759401044
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    Bassdude output level and impedance

    Great you worked it out, now I might have to make one more myself. I wonder how a Sushi Greenhouse would go between the Bassdude and the amp, it looks like an effects loop pedal that Nathan is releasing soon. https://www.talkbass.com/threads/the-sushi-box-fx-secret-society.1484792/post-28929602
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    Vampire Slayer DIY PCB?

    Make sure that the 4kHz is not coming from your 9V power supply. ( or 12V Supply )
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    Bassdude output level and impedance

    Just switch out C6 100pF out of the circuit and its a normal channel. The bright caps are a HPF that cuts out a lot of lower frequencies from the signal, you never want bright caps if you use a bass guitar. I think that putting the bright cap on a switch is the only mod I made on my Bassdude...
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    Steddi, Go! - simple tube D.I.

    Most likely because of greedy people buying your transformers just to have in the spare parts box, I have 2 spare ones at the moment at home. :sneaky:
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    Bassdude output level and impedance

    I would try to use the spare triode and make it into the missing input channel on the bass dude, it should have a bright and normal channel on the inputs. Perhaps a buffered send/return could be added between the bassdude and the amp module. There is a pedal called the Paramix that is a nice...
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    Bassdude output level and impedance

    I didn't know you could go overkill when it came to tubes, or power, or how many pedals, guitars, amps you own. At least not as long as the boss don't find out. (and then I say it must belong to our daughter)
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    Steddi, Go! - simple tube D.I.

    And it is now up on the C2CE shop page but stock is 0 units until Nathan is ready to go, I can feel the countdown already. I kept wondering if it was going to have a transformer and now I know it will, as soon as they are ready for sale. 10-9-8-7.......
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    Bassdude output level and impedance

    Maybe you just need to place a tube buffer between the preamp and the ICE module, it might be the perfect place for a C2CE Vampire Slayer.
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    Build Docs Archive?

    I must have missed that one, that's what you get for arriving late to the party. Archived build docs ? This makes me wonder what I might have missed out on in the past, I would love to see any old build docs as it's a way of learning more stuff for an old fart like me.
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    Bassdude output level and impedance

    Oh wow, now I'm gonna have to dust of my scope and check all my C2CE pedals just to see what I get, and my little tube amp worked perfect with the Bassdude. Did you place any load on the output when you tried it ?
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    Bassdude output level and impedance

    The Bassdude is fully bypassed and no part of the circuit affects the signal when in bypass mode, the signal enters the PCB at the top and runs on a single track to the bypass switch, and the same from the bypass switch to the output. Sometimes the power supply can affect other pedals if it is...
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    Increasing B+ on Bassdude

    I have some FCP20N60 in my Tayda shopping cart to try for the power supply, they have a Rds of 0.15 ohms and costs $2.29 each. I don't know where I can get any better inductors from yet that will fit onto the Sushi C2CE PCB's. I have a 1 watt amp that runs on the standard C2CE power supply with...
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    No sound from Nobelium

    Did you draw the numbers on your drawing back to front on your resistance measurements ? You have 1k5 between the input to pin 3 on V1, that should be on pin 7 on V1, run the numbers in the opposite direction and see if it makes sense. The pin you marked as No4 is actually number 6 on the socket...
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    No sound from Nobelium

    If you have to desolder daughter board it is best to cut all the pins first so you can desolder them one at a time, you just have to replace the pin header. It is very hard to desolder anything with multiple pins without damaging the PCB tracks.
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    No sound from Nobelium

    Make sure that the pins from the tube sockets cant touch anything on the main PCB, I always trim them right down and also the pin header pins. Cut off the excess leads from the solder side if you can. I think some of the tube socket pins can scratch on the main PCB if you don't trim them down...
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    Increasing B+ on Bassdude

    I usually use the 10uF 400V capacitors from Tayda, they are 10mm x 16mm P5 and they fit with no problems. I do not think you would fit anything longer then 16mm, but there might be some out there that are 17mm that could get squeezed in there. 20mm will not fit at all so don't even try, I just...
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    Bathtub Reverb - Issues

    I can not see anything wrong but the photos are not that clear, have you got voltage on the reverb module ? Pin 1 should be +5V and pin 2 should be ground.
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    REQUEST Aion L5 Preamp (Newer 9vDC Version) Drilling Template?

    Thanks, that works fine as soon as I remove the .PDF on the end.
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    Back In Stock Updates

    That's fair enough, if you ever get tired of keeping that PCB I will gladly buy it of you but I am not going to hold my breath while you think about it. If you happen to have several PCB's from ones that have gone to the boneyard I would love the chance to buy one, I just need the PCB and...
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