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  • darryl's Avatar
    Today, 01:51 AM
    I'm not worried about it. I'm going to unmount all the other output transistors to clean and reapply heat sink grease before I hard-wire the pins....
    19 replies | 471 view(s)
  • darryl's Avatar
    Yesterday, 10:54 PM
    Vise grips can be pretty handy to remove screws that might be left after the wood has been stripped off.
    24 replies | 884 view(s)
  • darryl's Avatar
    Yesterday, 10:24 PM
    For what it's worth, this is a Roland SPA-240. It seems to be the updated version of this model, as it does have protection circuitry. It was fairly...
    19 replies | 471 view(s)
  • darryl's Avatar
    Yesterday, 03:30 PM
    The very odd time I see a copper heat sink used for transistors- usually it's aluminum across the vast majority of applications. A few days ago I had...
    19 replies | 471 view(s)
  • darryl's Avatar
    09-22-2017, 04:11 AM
    Sure, set up a treadmill where they can run to keep the wheels turning and making power for the rest of us. :) Seriously, what is the state of...
    123 replies | 4720 view(s)
  • darryl's Avatar
    09-21-2017, 03:08 PM
    Seems I read recently that Edison didn't actually invent the electric lamp. But he was the guy who improved on the state of the art and applied it...
    123 replies | 4720 view(s)
  • darryl's Avatar
    09-18-2017, 06:48 PM
    It's pretty much all been said now- but here's my take: I like incandescent light. I don't like how hot the bases get, and how they eventually...
    123 replies | 4720 view(s)
  • darryl's Avatar
    09-17-2017, 04:53 AM
    Thanks Macona. That's exactly the feedback I was looking for. Now I know what to expect.
    10 replies | 464 view(s)
  • darryl's Avatar
    09-17-2017, 01:39 AM
    Thanks Forrest. I could learn a lot by taking that path- I can visit the local library and pick up some books.
    10 replies | 464 view(s)
  • darryl's Avatar
    09-16-2017, 08:56 PM
    Sigh- OT again- honestly I did do some metalworking in the past few days, but this is not about that. I'm about to purchase some led chips in purple,...
    10 replies | 464 view(s)
  • darryl's Avatar
    09-14-2017, 01:47 AM
    darryl started a thread OT- leds as sensors in General
    Ok, sort of out of the blue, but today I wondered whether the new breed of led is also more sensitive as a sensor than those of the past. I once...
    4 replies | 448 view(s)
  • darryl's Avatar
    09-13-2017, 02:38 PM
    darryl replied to a thread diy belt sander in General
    I use a 4x36 belt on my drum sander. Not the same thing, I know, but I upgraded my choice of belt to a zirconia- I'll never look back.
    31 replies | 2197 view(s)
  • darryl's Avatar
    09-11-2017, 02:55 PM
    darryl replied to a thread OT- Pressure Washer ? in General
    I was of the understanding that if the water inlet pressure wasn't there, the pump would stop running. Self-protection-
    9 replies | 561 view(s)
  • darryl's Avatar
    09-09-2017, 02:28 PM
    darryl replied to a thread Cute in General
    Is that mother a metric or an imperial?
    41 replies | 2777 view(s)
  • darryl's Avatar
    09-03-2017, 03:06 PM
    darryl replied to a thread heat sink fins in General
    Thanks for all the ideas, many things to think about now. From time to time I need a thermal adhesive- sometimes being non-conductive is...
    38 replies | 2073 view(s)
  • darryl's Avatar
    09-03-2017, 02:18 AM
    darryl replied to a thread heat sink fins in General
    Thermal adhesive looks interesting- have not explored that yet.
    38 replies | 2073 view(s)
  • darryl's Avatar
    09-03-2017, 01:35 AM
    darryl replied to a thread heat sink fins in General
    Dimpling die- that looks like a good way to go. It might be the best way to get full thermal contact as there's enough give in the final dimple that...
    38 replies | 2073 view(s)
  • darryl's Avatar
    09-02-2017, 11:11 PM
    darryl replied to a thread heat sink fins in General
    After my last post, I started thinking about punching the holes. I don't have a punch and die of that size, but I could make or obtain such a set....
    38 replies | 2073 view(s)
  • darryl's Avatar
    09-02-2017, 08:24 PM
    darryl replied to a thread heat sink fins in General
    I'm looking at about 1-1/4 ID and 1-1/2 OD tubing to begin with. Length would end up being about the same as the OD. That probably means about 6...
    38 replies | 2073 view(s)
  • darryl's Avatar
    09-02-2017, 03:42 PM
    darryl started a thread heat sink fins in General
    A design I'm considering for a heat sink would have a section of aluminum tubing being fitted with multiple circular fins. The fins would start out...
    38 replies | 2073 view(s)
  • darryl's Avatar
    09-02-2017, 03:15 PM
    darryl replied to a thread how to cut peelable shim in General
    For something that thin I would sandwich it between sheets of perhaps 030 thick steel, then shear it. There's usually a clamping bar of some kind on...
    14 replies | 962 view(s)
  • darryl's Avatar
    09-02-2017, 03:09 PM
    Watch those ratings- being 16 ga capable doesn't necessarily mean it will do the full width, either a shear or a bend, at that gauge. But on the...
    4 replies | 441 view(s)
  • darryl's Avatar
    08-30-2017, 02:08 AM
    darryl replied to a thread The Death March of Retail? in General
    That person sitting in the car as an emergency respondent must feel like a real piece of crap- aiding the company that's killing his job. This...
    95 replies | 7803 view(s)
  • darryl's Avatar
    08-29-2017, 12:57 AM
    One thing he touched on which impacts me is the workaholic aspect. I work a day job, not related to machining by the way, then I go home with the...
    5 replies | 649 view(s)
  • darryl's Avatar
    08-27-2017, 01:45 PM
    darryl replied to a thread Paper shredder ideas in General
    I used one of those porcelain coated barrels once for a barbeque. Worked well, but I could hear this popping sound all the time. Turns out the...
    26 replies | 1932 view(s)
  • darryl's Avatar
    08-26-2017, 06:33 PM
    darryl replied to a thread Paper shredder ideas in General
    Hm- turn it into a meat tenderizer, good one. For the most tender steaks, run then through several times. Keep adding the spices each time. As the...
    26 replies | 1932 view(s)
  • darryl's Avatar
    08-26-2017, 12:15 AM
    darryl replied to a thread 3D ABS printing in General
    That looks like a skunk works project. I can see the one guy standing on top looking at a control panel. The second guy is about to board from the...
    8 replies | 650 view(s)
  • darryl's Avatar
    08-25-2017, 11:58 PM
    darryl replied to a thread Paper shredder ideas in General
    Some of those paper shredders have a nice PM motor in them with some gears- don't know that the shredder part is useful to any extent- I did score a...
    26 replies | 1932 view(s)
  • darryl's Avatar
    08-23-2017, 10:07 PM
    I cut a fair amount of alumipanel today and this blade just zipped quietly through it leaving clean edges. But that is thin material, al sheet bonded...
    16 replies | 1149 view(s)
  • darryl's Avatar
    08-23-2017, 02:37 AM
    I wonder about the tooth geometry- flat tops?
    16 replies | 1149 view(s)
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About darryl
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Chilliwack, B.C.

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I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

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