[TriEmbed] bad news about decade resistor boards

[Robert Gasiorowski]

Oh, I would also suggest using higher wattage resistors for lower values
and as before, higher precision for higher values.
1-99 ohm 1/2W-1W 1%
100-999 ohm 1/4W-1/2W 1%
1k-9k 1/4W 1%
10k-999k 1/4W-1/6W 0.1%-1%
1M-9M 1/8W 0.1%

On Sat, Oct 15, 2016 at 1:51 PM, Robert Gasiorowski <rgresume at gmail.com>
wrote:

> 1% resistors are between $0.005 to $0.01, 0.1% are 10x-25x more. You don't
> need E96, those decades use 1R, 10R, 100R, 1K, 10K, 100K, and 1M values
> only (each *10)
> I can design board like that in less than an hour, just need to know
> dimensions.
> You can use through hole or SMD and I would not do them myself, I would
> pay fab house to solder them, $0.04 per pad TH and $0.03 per SMD.
> Soldering headers would add $5.60 (without discount,) but anyone could
> solder them at home.
>
>
> On Sat, Oct 15, 2016 at 12:13 PM, pete at soper.us <pete at soper.us> wrote:
>
>> Where are the 1% 1/2 watt resistors with the required values for a few
>> cents each? In my experience stepping away from E96 values gets pricey,
>> assuming you can find a source at all. Then there's the notion of the time
>> to design the board, get it and a stencil made, paste and pick and place
>> the parts and solder it, then add the barrier strip. So that's $0/hr for
>> labor and magical sources for parts.
>>
>> Pete
>>
>> ----- Reply message -----
>> From: "Robert Gasiorowski" <rgresume at gmail.com>
>> To: "Pete Soper" <pete at soper.us>
>> Cc: "Triangle Embedded Computing Discussion" <TriEmbed at triembed.org>
>> Subject: [TriEmbed] bad news about decade resistor boards
>> Date: Sat, Oct 15, 2016 9:31 AM
>>
>> It would probably cost less if you made them yourself, and that's
>> including assembly!
>> You could make them custom size, so that they fit the box of your choice.
>> You could also use higher precision resistors (0.1% or better) for 1k,
>> 10k, and 100k, to make your decade box even better.
>> High precision resistors are expensive, but in bulk might not be that bad.
>>
>> On Sat, Oct 15, 2016 at 8:55 AM, Pete Soper via TriEmbed <
>> triembed at triembed.org> wrote:
>>
>>> Just a few folks expressed interest in the decade board a while back. I
>>> thought it might be more interesting mounted on a laser-cut acrylic base
>>> and I wasted some time exploring these and other cute accessories. In the
>>> meantime the price was jacked up to $14 +$3 shipping each. I searched
>>> around and couldn't find the quantity five deal Paul pointed us too either.
>>> I was going to just get a bunch on spec and coordinate with Jeff to offer
>>> them in return for Splatspace donations. But at this price they're no
>>> longer interesting. Here's the item in question:
>>>
>>> https://smile.amazon.com/Electronics-Salon-1R-9999999R-Progr
>>> ammable-Resistor/dp/B01CZLPAOM/ref=lp_8937979011_1_3?srs=893
>>> 7979011&ie=UTF8&qid=1476535329&sr=8-3
>>>
>>> -Pete
>>>
>>>
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>>
>>
>
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