Recent content by Scruffie

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    Cloning the Rare Boss CE-1 Chorus... Well... Kinda!

    In that case, try poking the wire away from the 4011. I will say though we've been having issues with more recent production LT1054 chips introducing heterodyning (which can appear as a swoosh), we thought the Karaoke had been immune with the heavier filtering but perhaps not the case for...
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    Cloning the Rare Boss CE-1 Chorus... Well... Kinda!

    LFO noise as in tick or more a swoosh? If it's tick, try poking your ground wires around a bit, they're dangling over the 358 LFO op amp.
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    Cloning the Rare Boss CE-1 Chorus... Well... Kinda!

    :ROFLMAO: That one was my fault! BBD's were originally used heavily in Karaoke units and it just kind of worked for the Chorus sound. Naming is honestly the worst bit of the whole PCB affair. I'm glad you're digging what you've heard out of it so far though and it sounds like you're another...
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    SOLVED Cepheid Chorus No Chorus…

    The voltage on pin 2 & 4 of the 3102 (and by association pin 2 & 6 of the 3207) should be a steady half supply, possibly you might have burnt out the 33R resistor causing its voltage to fluctuate with frequency...
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    SOLVED Cepheid Chorus No Chorus…

    When you swapped in the new 3102, what voltages did you end up with on the 3207? Your new problem, assuming it's not the V.Ref drifting, sounds like it might just be related to a bad solder joint or wrong resistor value around the BBD itself.
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    SOLVED Cepheid Chorus No Chorus…

    I mean, even without the warmth, that 3102 ain't working. When you pull it out, hopefully you'll get 9V back on the 3207 pin 5.
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    SOLVED Cepheid Chorus No Chorus…

    Nah, it's good to IIRC... 11V is terminal, perhaps even 12, but 9-10V is fine.
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    SOLVED Phase II No Work Right…

    He said he could get some phasing happening, just not from the LFO, right? So I vote LED, I remember I had some diffused white LED's that had zero impact on LDR's too.
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    SOLVED Phase II No Work Right…

    LED light spectrum?
  10. S

    Op-Amps 4558 vs TL072 vs OPA2134 vs 5532 vs LM741 vs LM833 vs LF353 vs OP07

    TL072, cheap, high input impedance, quiet. NE5532/LM833, good for low noise in EQ/Filter jobs, don't stick them everywhere unless you've got an idea what you're doing, high current draw, low input impedance and have some quirks in certain situations. 4558, fair overall op amp, not as good spec...
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    Help me pick out some tubes

    You can add as many stages of diodes/caps as you like practically, but the quantity required for anything over 50V (70 if you go with a 12V supply, which you're gonna want if you're playing with triodes any-who) makes it a bit impractical... I made this project some time back, layout ain't...
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    What's on the workbench?

    Listening to this gives me an idea, as a man of analogue talents but of too much laziness to progress to digital beyond a basic understanding, can I run a potential joint project venture I've had in mind for some time past you...? :unsure:
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    What's on the workbench?

    Hey! My desk looked really boring with that big plastic box on it.
  14. S

    What's on the workbench?

    You're very sweet to offer but I can't be buying any more pedals at the moment and I certainly couldn't accept it as a gift, although perhaps we could come to some... other arrangement :sneaky:
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    What's on the workbench?

    Much as I'd love to say EU still, unfortunately, the UK...
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