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  1. J

    Breadboarding Practices

    Get some DuPont cables for connecting. You can trim down the plastic and use one for power IO on most boards as well. If you use 2, one 4 pole one 6 pole, connected with DuPont female to female or a 4 wire 2.54mm JST, you can pre test your 3pdt switch as well. Not totally necessary (I've only...
  2. J

    Breadboarding Practices

    an offering to appease the gods of tone.
  3. J

    Breadboarding Practices

    Tie it to ground. Helps a ton in noisy (emi/rfi)environments. you can easily find sheet pans from a toaster oven at thrift stores. They're a perfect size. Not too big, not too deep.
  4. J

    question about a power supply filter resistor in an Expandora clone build

    If you have an aliexpress account, there's some decently priced transistor kits on there. https://a.aliexpress.com/_mqAjK7t The 130 value kit will have every oddball value you're likely to encounter. They were 2/3 the price when I bought them but still, it's easy to east up $32 in shipping...
  5. J

    question about a power supply filter resistor in an Expandora clone build

    R6 forms a 1.5k low pass in the feedback loop. 32R would shift this up to 2.2khz. That's a half an octave shift. Not huge but not minimal.
  6. J

    'Antistatic' mat question

    That hmgut and Rodney Dangerfield were cut from the same cloth.
  7. J

    Bring out yer Diptrace

    I don't recall where, maybe tayda, but there are long legged switches that may be of use. Another alternative is use a long bat switch and an oval hole. Downside is the only thing mechanically holding the switch is the solder. If I were to go that route with your current setup I would...
  8. J

    EOL parts thread

    You're working on projects ? Sweet! Just ball busting. It really sucks. It's a tiny niche part of the overall market but a huge blow for that market. I imagine it's really tough for some smaller pro audio outfits. Maybe someone will pick up the fab rights l. Here I am wishing Chinese owned Xvive...
  9. J

    Stuff you wanted to know but were afraid to ask

    Anyone have a simple/quick method for adding legs to sop8 adapters? Getting them square and straight is changing. Opted for machine pins instead of headers as headers don't socket well. But it's rather time consuming and they don't take solder paste well. Too tight of a fit I think. On the plus...
  10. J

    Stuff you wanted to know but were afraid to ask

    Goop it! Liquid tape.
  11. J

    Wah Inductors. No hype. Just measurements.

    Fasel is a kidney bean in middle english. So technically yes?
  12. J

    DEMO Alondra Harmonic Tremolo

    Awesome to see you back in the saddle @jjjimi84 and indig the circuit @jubal81 I know you've put a lot of effort into your trem work lately. Cool to see some of trckle out.
  13. J

    What's on the workbench?

    That's cool. But can I use my laptop charger?
  14. J

    What's on the workbench?

    Who runs Bartertown?
  15. J

    'Antistatic' mat question

    Start at 27:50 and watch for a few minutes at least
  16. J

    'Antistatic' mat question

    It's not the mat that carries the charge. It's you. But only if your local humidity drops below 40%ish. this is probably the best video on esr I've ever seen, by far. Old guy from New Jersey iirc smoking and talking in the 70s. Well worth the 80 mintues
  17. J

    Sandspur Fuzz (Analogman Sunface) 1590a & 125b Builds

    Care to expand? Seems more like darts in the dark. It's all attainable by adjusting either of the 2 variRs in series with R4. I expect the change in negative feedback is negligible. I suppose there's *some* impact. But a 32.7k vs a 33.3k R2 isn't dissimilar. I think you would have sensed the...
  18. J

    Sandspur Fuzz (Analogman Sunface) 1590a & 125b Builds

    Beautiful looking builds. I'm a little confused by the R4/biasing remarks. Are you saying you adjusted R4 to get it to a specific bias voltage at noon on the sundial/bias pot? R3, R4 the bias pot and the sundial all set the bias. R3 and R4 get you in the ballpark and the trimmer let's you dial...
  19. J

    'Antistatic' mat question

    Kinda depends on what size and color you are after This one doesn't look bad for the price. Comes with a grounding strap and hub. You can ground it on a faceplate mounting screw on a wall socket.
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