XjFred's latest activity

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    XjFred reacted to pbrommer's post in the thread Tube Town B-Flex with Like Like.
    1. If I did a master volume, I’d use a post-phase inverter master volume. The Lar-Mar example works well. 2. The dummy resistor is...
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    XjFred replied to the thread Tube Town B-Flex.
    Do you think I should put the MV before the tonestack ? Is that what you mean by "changing the tonestack structure" ?
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    XjFred reacted to Asdrael's post in the thread Tube Town B-Flex with Like Like.
    The standby switch isn’t really useful. A MV definitely is. You could also play with changing the tonestack structure to give you more...
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    XjFred posted the thread Tube Town B-Flex in The Amp Room.
    Hello, everyone! I’m planning to build a tube bass amp using this kit from Tube Town in Germany. It’s a kit inspired by Ampeg’s...
    • PSU schematic.jpg
    • Schematic.jpg
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    XjFred reacted to Passinwind's post in the thread A DIY 100 watt tube bass amp with Love Love.
    Rocking the alt. tiger maple faceplate now. No problems in a few months of use...so far so good. Tried it through a friend's Mesa Subway...
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    XjFred reacted to vigilante398's post in the thread Lab Rat Low Volume Output with Like Like.
    I will say that I run my pedals at 9V at the heaters and have done so for years, and have not noticed any impact on tube lifetime. This...
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    XjFred replied to the thread Lab Rat Low Volume Output.
    From what I can gather from this document, there is a 10% tolerance on the filament voltage to compensate for variations in the supply...
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    XjFred replied to the thread Lab Rat Low Volume Output.
    I confirm 180V for JJ and 150V for TAD. Far more than needed in our case.
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    XjFred reacted to vigilante398's post in the thread Lab Rat Low Volume Output with Like Like.
    Gemini hallucinated that number. I've never seen a datasheet call the filament/cathode breakdown voltage "Vhk", and especially in JJ...
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    XjFred reacted to JohnnyCreepy's post in the thread Lab Rat Low Volume Output with Like Like.
    Taken from EIMAC book Care and feeding of power grid tubes, rev. 5: A very large factor in tube life is the temperature of the...
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    XjFred reacted to ThatDude's post in the thread Lab Rat Low Volume Output with Like Like.
    Alrighty. I think I might have found out what's going on. Well, I didn't personally diagnose it because I am no engineer and I am no...
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    XjFred reacted to ThatDude's post in the thread Lab Rat Low Volume Output with Like Like.
    I am not sure if that’s the case. Gemini’s respond mentioned that not all 12AX7 or ECC83S tubes have the same specs. It mentioned that I...
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    XjFred replied to the thread Lab Rat Low Volume Output.
    The Crux module only works with the DC7. I use a Cioks Sol because I have a minimalist pedalboard. I think I'll wait and see how my...
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    XjFred reacted to anevilspar7an's post in the thread Lab Rat Low Volume Output with Like Like.
    This is where you either get a premade parallel cable or make one yourself. It doubles the available current out of the Cioks. Another...
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    XjFred replied to the thread Lab Rat Low Volume Output.
    What you mentioned prompted me to do some research on the specifications of my tubes (2 x 12AU7 JJ Gold Pins in the Nobelium and 2 x TAD...
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