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Strange earthing problem
[rquote=585569&tid=131185&author=wg48]
Below is a 24V Weller with an earth. The Rolls Rorce ... |
17-1-2019 at 13:20
by: Twospoons |
Mom-and-pop lemonade-stand-style ways to make quick legal cash from chemistry
Paint pigments or dyes might be a winner. I'm sure there are plenty of artists would love to play wi ... |
9-1-2019 at 20:40
by: Twospoons |
How to repair a thermocouple?
Your 50/50 solder probably does have an aggressive flux, given the usual application for that alloy ... |
6-1-2019 at 15:16
by: Twospoons |
'Sudden Deceleration' Suit, or John Stapp's Revenge
Concussion results from the brain smacking into the inside of the skull. Its about as protected as i ... |
6-1-2019 at 11:43
by: Twospoons |
How to repair a thermocouple?
I've used the arc from a neon sign transformer to make thermocouples. Melts a nice little ball on th ... |
6-1-2019 at 11:35
by: Twospoons |
Stopping oils and fats from becing rancid - novel idea
For oils the obvious solution is storage in a collapsible bladder, as used in cardboard cask wine. N ... |
28-12-2018 at 16:35
by: Twospoons |
Looking For: Fluoropolymer Tubing
Plenty of low cost options at Aliexpress.com. The 3.1mm ID PTFE tubing is used extensively in 3d pri ... |
21-12-2018 at 15:11
by: Twospoons |
I need help with optoisolators. . .
[rquote=564119&tid=113080&author=Intergalactic_Captain]
I'm still curious though if anyone ... |
17-12-2018 at 12:21
by: Twospoons |
Apples, Cider, Vinegar question
Frankly I think you should have stopped your fermentation at "cider". 
I made a dry sparkling ci ... |
2-12-2018 at 16:44
by: Twospoons |
Say goodbye to cheap Chinese shipping
Sometimes that's a trick to make an item look cheaper than everyone elses, then they make their mone ... |
30-11-2018 at 21:51
by: Twospoons |
Apples, Cider, Vinegar question
Production of alcohol via yeast + sugar requires anaerobic conditions, otherwise you just get CO2 a ... |
30-11-2018 at 15:09
by: Twospoons |
Stability and precision of Hall-based current sensors?
[rquote=553509&tid=103892&author=Fulmen] winding a solid core for testing purposes shouldn't ... |
16-11-2018 at 13:38
by: Twospoons |
Stability and precision of Hall-based current sensors?
[rquote=552949&tid=103892&author=wg48]
Putting it differently is Rogowski coil nothing mo ... |
15-11-2018 at 14:38
by: Twospoons |
Stability and precision of Hall-based current sensors?
[rquote=552604&tid=103892&author=Fulmen] the heat pump is permanently wired. [/rquote]
So ... |
14-11-2018 at 17:03
by: Twospoons |
Stability and precision of Hall-based current sensors?
Have you considered some of the ASICs intended for exactly this purpose?
https://www.analog.com/en/ ... |
13-11-2018 at 14:00
by: Twospoons |
High Temp Wire/Sparkplug sources? (1000c+)
Tungsten will burn up in an oxidizing atmosphere at furnace temperatures (600C+). |
6-11-2018 at 14:22
by: Twospoons |
High Temp Wire/Sparkplug sources? (1000c+)
[url=https://www.aliexpress.com/item/FeCrAl-0-7mm-21-Gauge-AWG-4-94oz-131ft-Roll-Heating-Heater-Wire ... |
5-11-2018 at 16:41
by: Twospoons |
Propane as an inert-gas
A lot of the OTC helium has oxygen in it to stop people suffocating while playing the voice changing ... |
18-10-2018 at 16:51
by: Twospoons |
How Nobel actually discovered dynamite?
[rquote=538762&tid=93220&author=SWIM]
I've never messed around with anything that would nee ... |
26-9-2018 at 19:33
by: Twospoons |
Hydrogen
Whats wrong with plain old electrolysis? Make as much hydrogen as you want, when you want it, at an ... |
23-9-2018 at 22:09
by: Twospoons |
Laser guided mesh network
I have built a laser detector that worked at 2km, though the data rate was fairly low. The laser was ... |
21-9-2018 at 12:24
by: Twospoons |
Laser guided mesh network
Freespace optical network ... wave bye bye to your internet every time it rains. |
20-9-2018 at 00:15
by: Twospoons |
Plasma Generation by Household Microwave Oven for Surface Modification and Other Emerging Applications
And if you don't want to use a microwave, heres one I built from acrylic, a bell jar, and a simple H ... |
13-8-2018 at 13:47
by: Twospoons |
Increasing water pump pressure using 2 pumps in series?
The risk you take is that the housing and seals of the second pump will experience double the pressu ... |
25-7-2018 at 20:32
by: Twospoons |
Winding flyback secondary?
[rquote=521220&tid=83533&author=Foeskes]Any tips on insulating the layers?
I tested the old ... |
11-6-2018 at 13:34
by: Twospoons |
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