Posted by Guitar-Guy | Posted in guitar accessories | Posted on 27-03-2006
Tags: dpdt toggle, dpdt toggle switch, dpdt toggle switch schematic, dpdt toggle switch wiring, dpdt toggle switches, electronics, hardware, led, switch, switches
What resistors and LED sizes should I use?
I am making a test set and want to use LED’s and have them light up green or orange when 5 different DPDT toggle switches are in forward or backward position. I will have 4 red LED’s using SPST toggle switches. The power source on the DPDT’s is 12 V and the SPST’s is 5 V. I want to see the LED’s easily facing them head on from 3 or 4 feet away in daylight usage. What would be the best resistor and LED combination sizes to use?
Use Ohms Law to calculate your resistor, which will go in series with the LED. You need to know the value of the forward current for the LED’s, then just divide that value into your supply voltage. Now, you can adjust the resistor value a bit higher for a comfortable light and not run it at it’s maximum for longer life of the LED’s.
Added note: You can also subtract the Forward voltage of the LED from the supply voltage and use the result as the voltage drop across the resistor which can then be calculated by dividing it by the Forward current rating of the LED. This will be a brighter illumination from the previous method above.
Part 1 – Motorized Router Lift Wiring – Introduction and Overview
|
|
Waterproof 30 Amp Double Pole 3 Position Momentary On-Off-Momentary On Rocker Switch $9.95 DPDT Momentary On-Off-Momentary On Rated at 30A @ 12VDC, 18A @ 125VAC, 10A @ 250VAC. Panel Cutout: .82″ x 1.44″ Waterproof to IP66… |
|
|
30 Amp DPDT Momentary On-Off-Momentary On Rocker Switch $9.95 DPDT Momentary On-Off-Momentary On Rated at 30 amp @12VDC, 16 amp @ 120VAC, 10 amp @ 250VAC. Internal gasket keeps water & dust out of contacts .83 x 1.48 inch mounting hole. 1/4″ quick connect terminals. … |
|
|
Mini Toggle Switch – DPDT On/Off Type $1.33 DPDT sub mini toggle switch. 5 amp, 125 VAC. 1/4″ mounting hole…. |
|
|
Ace Heavy Duty Toggle Switch (6397) $4.00 Sold as each. For power tools and appliances. .250 tab terminal. On/off/on DPDT. Rated 1-1/2HP. 10 AMP 277 VAC. 20 AMP 125 VAC. UL listed and CSA certified. Blister card. Manufacturer’s number: 6397. Country of origin: China. Distributed by Raco, Inc…. |
|
|
Micro Switch AML24FBA2AA04 DPDT On-Off-On Rocker Switch with (1) Lamp Socket $15.25 Micro Switch AML24FBA2AA04 DPDT On-Off-On Rocker Switch with (1) Lamp Socket… |
|
|
DPDT CENTER OFF MINIATURE TOGGLE SWITCH BAT HANDLE $1.70 Miniature Toggle Switch, Operating Temperature -55 degrees C to + 85 degrees C, electrical life 20,000 cycles, rated at 6Amps at 125VAC… |
|
|
DPDT MOMENTARY ON CENTER OFF MINIATURE TOGGLE SWITCH $1.95 DPDT 6P Miniature Toggle Switch, Operating Temperature -25 degrees C to + 85 degrees C, electrical life 20,000 cycles, rated at 6Amps at 125VAC… |
|
|
DPDT MINIATURE TOGGLE SWITCH BAT HANDLE $1.60 Miniature Toggle Switch, Operating Temperature -55 degrees C to + 85 degrees C, electrical life 20,000 cycles, rated at 6Amps at 125VAC… |
|
|
DPDT Mini T/Switch 5AMP 120VMOM (2) $5.99 … |
|
|
DPDT SubMiniToggleSwitch3AMP120V(2) $5.07 … |
|
|
HEAVY-DUTY TOGGLE SWITCH $6.99 Heavy-duty toggle switch. 1cm (7/16″) mounting hole. With on/off label plate. 3A/125VAC. DPDT. |
|
|
Heavy Duty Centre-Off Toggle Switch $8.99 DPDT toggle switch. Centre-off with screw terminals. 10A/125VAC. 2cm (7/8″) panel mounting hole. |
|
|
MOMENTARY FLIP SWITCH, DPDT $6.99 Momentary flip switch, DPDT. Centre off. 20A. |
|
|
DiMarzio 3-Position On/On/On DPDT Mini Switch $14.25 DiMarzio 3-Position On/On/On DPDT Mini Switch |
|
|
DiMarzio 2-Position DPDT Mini Switch $7.99 DiMarzio 2-Position DPDT Mini Switch |
|
|
5-AMP DPDT MINI RELAY $5.99 5-amp DPDT mini relay. Coil: 12VDC, 60mA, 200 ohm. Contact/rating: DPDT, 5A/125VAC. Size: 11mm x 19mm x 13mm. CSA approved. |
|
|
Dimarzio 2-Position Dpdt Mini Switch $7.99 The DiMarzio 2-Position DPDT Mini Switch includes mounting hardware. |
|
|
Dimarzio 3-Position On/On/On Dpdt Mini Switch $14.25 The DiMarzio 3-Position On/On/On DPDT Mini Switch includes mounting hardware. |
|
|
KNIFE SWITCH, DPDT $4.99 Knife switch, DPDT. Rated 0.5 amps. Features screw-driver terminals. For low power use only. 26mm x 30mm x 20mm (15/8 x 23/8 x 3/4″). |
|
|
DiMarzio 3-Position On/Off/On DPDT Mini Switch $12.95 The DiMarzio 3-Position On/Off/On DPDT Mini Switch includes mounting hardware. |
|
|
Dimarzio 3-Position On/Off/On Dpdt Mini Switch $12.95 The DiMarzio 3-Position On/Off/On DPDT Mini Switch includes mounting hardware. |
|
|
Waterproof Toggle $28.99 Waterproof Toggle |
|
|
Painless Wiring 80534 – Waterproof Toggle $37.99 Waterproof Toggle |
|
|
Allparts Toggle Switch Wrench $6.99 Allparts Toggle Switch Wrench |
|
|
ProLine 3-Position Toggle Switch $7.99 ProLine 3-Position Toggle Switch |
|
|
DiMarzio Toggle Switch Cap $3.95 DiMarzio Toggle Switch Cap |
|
|
Gibson Toggle Switch Cap $2.82 Gibson Toggle Switch Cap |
