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small triacs

(5)
In TO-92 you are going to find they can handle anywhere from <100mA up to ~1A RMS. This is plenty for an LED dimmer or small fan motor and the like. If you
evil666demonic
5
posts
Jun 23

Solder

(17)
use a spray "no-clean" flux and a 60/40 Solder . Precharge the PCB with spray flux. With a 1mm " wire",  solder  on the Board and 1mm desoldering wick.
Howard Chester
17
posts
Jun 19

compressor relay accessories?

(27)
They did not manufacture it. What was different was that only TWO phase wires and a ground were present rather than three. The farm, except for the
Stuart Bouchey
27
posts
Jun 15

What to salvage from dead microwave oven ?

(12)
... Yeah. I woudn't ordinarily have scrapped out a bunch of hard drives without some testing first, but in this case the interface was something proprietary
Roy J. Tellason, Sr.
12
posts
Jun 15

12vDC power supply to 9vDC, 4.5vDC, or 3vDC

(14)
... Heh. Especially if you're using multiple levels of external pass transistor to boost the capabilities of the output... -- Member of the toughest, meanest,
Roy J. Tellason, Sr.
14
posts
Jun 15

Once more : scope MHz vs sample rate

(4)
Andy (et al), I forgot about the equivalent time sampling. At first I was sure this was a misprint but their web page ALL says 100 MHz. So I was puzzled if
Jong Kung
4
posts
Jun 13

Identifying thermocouplea

(12)
Without cold junction compensation, the mV measurements will not nearly align with thermocouple characteristic tables. The CJC compensates for the
Donald H Locker
12
posts
Jun 9

USB power injector

(4)
I think it depends on current capacity of USB port in computer, if it's USB 2 current limit is 0.5 Amps,USB 3 i believe is about 1 amp. My tablet charger has a
Raymundo Vega
4
posts
Jun 7

Thermistor

(21)
I work with printing press mechanics on a variety of presses. One mechanic has a favorite saying: "It's amazing what a little lubrication will do." He's
dave smith
21
posts
Jun 4

USB microscope cameras

(11)
Thanks Jan Kok and all of you for your thoughts. I have used the magnifying table light. And binocular microscope. And magnifying glasses. And magnifying
Steve65
11
posts
May 30

Best motor for an attic fable fan.

(42)
As an example of the effectiveness of heat removal from an attic say 50 degrees from 135 down to 85 consider if the remainder of the house the walls were 50
normnet2003
42
posts
May 12

MosFET as Diode

(4)
The device I used so long ago must have been a dual package arranged as back to back. Or it didn't have the intrinsic / body diode. The application was to
sheldon.dedek
4
posts
May 3

Repair help

(3)
Try to replace the power lead. The lead takes a lot of abuse but seems to be the last place to look.
Howard Chester
3
posts
Apr 30
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