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    Bathtub Reverb Accu-Bell Effector Upgrade Project

    I still haven't decided where the Tap LED should go.
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    Bathtub Reverb Accu-Bell Effector Upgrade Project

    This is my project thread to invite comments / mockery *cough* shared laughter or any input readers might deem worth while :cool: Here is my draft graphic of the Effector against the Reverb I have yet to label the three way switch at top left. It will be up-Reverb, mid-Delay, down-Chorus. The...
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    The MOD Squad

    Borrow my pics as much as you like… since I stole the whole idea from you 😎 But I AM working on a Bathtub mod to use the ABE module! I’ll post if I get it to work.
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    The MOD Squad

    So now I have to buy an Ambassador board with my next C2CE purchase 😁🤣
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    Nobelium - tube bass preamp project

    Nice work TillMack!! Looks great :) I've had the same trouble, often the pots have a small tab which need to be taken off. I just do it automatically now as I don't like how the tabs tend to skew the pot's alignment. Also, when using a powder coating and face-plate, I would sand flat the pot nut...
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    Tubes 101 - Intro to Tube Preamp Design

    I suspect it is because they only need to manage the voltage drop across the resistors which is much less than the 250v plate voltage to ground.
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    Nobelium - tube bass preamp project

    I checked the resistor values in your pictures and they look good. I don't have a Nobelium with me at the moment, but these are some measurements I've taken previously.
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    Nobelium - tube bass preamp project

    Does one of your output jack tabs touch the enclosure?
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    Nobelium - tube bass preamp project

    I meant “Smarter than me” 🤪
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    Nobelium - tube bass preamp project

    Hi Retty, Thanks for reaching out. There are much smarter people who will ask more questions:) Two things to begin with. 1. Please post some good photos of the pcb board. 2. Have you tried swapping out the tube. Any 12AX7 compatible tube will work.
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    Bathtub Reverb - tube-driven digital reverb

    Soo... I've really enjoyed the extra bass response mod for the Bathtub Reverb. I was wondering if anyone can find fault with the idea of adding a bypass switch to remove the reverb module so it acts as a simple tube buffer and gain stage. I was thinking of bypassing from after the C2 (in my...
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    Changes to C2CE I would like to see !

    Thanks Mick. An elegant mod!
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    Nobelium - tube bass preamp project

    I've had success squeezing one of these between the enclosure and the PCB. I do cut the legs off though. https://www.taydaelectronics.com/tayda-500k-ohm-logarithmic-taper-potentiometer-d-shaft-pcb-11mm.html I like the above idea of replacing the xlr trim pot with a pot wherever you want it...
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    Conspiracy to Commit Electronics - Formal Intro

    As an update, Tassieviking's idea of 2M resistors accross the switch to pre-charge the high voltage capacitors works a treat. This is the quietest switch on my board.
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    Nobelium - tube bass preamp project

    I ended up getting that RODE branded one and took on the project. I have some Jensen’s on back, back, back order with a hope and a prayer that they come sometime this year. I want to make the most of the time it’s taken to design my UV print and find the parts :) I’m really keen to see how the...
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    Nobelium - tube bass preamp project

    I should have read further down the comments :) The Unagi unit is my go-to, but the guy loved the “Jensen” name. Has fallen through now in any case. I have just bought a FWBIM v3 so I’m selling my nobelium to fund more parts for another C2CE build :)
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    Nobelium - tube bass preamp project

    I’ve messaged the seller some days ago, but I haven’t had a response.
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    Nobelium - tube bass preamp project

    Ahh… cool. Yes, I normally use the E4305 but he really wanted the Jensen name. Nearest I could find in stock with postage to Australia was closer to Au$400 than $300. Not worth it.
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    Nobelium - tube bass preamp project

    Hey Smrtokvitek... I had someone ask me to build a Nobelium with a Jensen transformer... where did you find this almost mythical beast?
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