footswitch
hi there!!!
i'm realy new out here, and i'm wondering if any one can help me...
i want to build my own footswitch for my hiwatt g40 12r amp.it has 2 mono inputs for channel and reverb and i want to build a footswitch with 2 leds.can any one help me with a wiring diagram please??
i'm realy new out here, and i'm wondering if any one can help me...
i want to build my own footswitch for my hiwatt g40 12r amp.it has 2 mono inputs for channel and reverb and i want to build a footswitch with 2 leds.can any one help me with a wiring diagram please??
- Hides-His-Eyes
- Tube Twister
Does the amp want them Closed to engage the effect or Open?
Testing, testing, won too fwee
- Hides-His-Eyes
- Tube Twister
OK, use that to have a go yourself at drawing a circuit diagram and I promise I'll check it for you.
Testing, testing, won too fwee
- Hides-His-Eyes
- Tube Twister
Symbol for a switch:
Symbol for an LED:
Put a resistor in series with the LED to stop it burning out (depends on the LED, 1k is usually fine)
Use lines to symbolise what wires will connect things! The switch symbol there is for a DPDT switch (google it) which are commonly available as footswitches.
Symbol for an LED:
Put a resistor in series with the LED to stop it burning out (depends on the LED, 1k is usually fine)
Use lines to symbolise what wires will connect things! The switch symbol there is for a DPDT switch (google it) which are commonly available as footswitches.
Testing, testing, won too fwee
- Hides-His-Eyes
- Tube Twister
You need to seperate the LED and channel switching into individual 'poles' of the switch and then use a power supply or battery for the LED, probably.
There's no real guarantee what kind of signal/voltage the amp is going to send.
There's no real guarantee what kind of signal/voltage the amp is going to send.
Testing, testing, won too fwee
- Hides-His-Eyes
- Tube Twister
Fiiiine, but you don't learn anything by me drawing it.
Testing, testing, won too fwee
- Hides-His-Eyes
- Tube Twister
Well thank god for that
Testing, testing, won too fwee
- Barcode
- Diode Debunker
If the amp sends 1.7V on the control line, there is a good chance you can use your original drawing with no additional power supply. It generally depends on the voltage of the LED used and how the switching actually takes place, but since you are shunting 1.7V to ground without the LED, I'm going to guess it is designed to provide power for the LED so you should be fine. You will most likely need to use a diffused plain old LED though, not a super bright or waterclear one.bamwels wrote:for the channel the amp send 1.7V
- DrNomis
- Old Solderhand
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I'd suggest downloading a schematic of that Hiwatt Amplifier,then you would be able to work out all details of the footswitching from that,from how to power the led indicators,to how the footswitch sockets are wired,etc....
From that,a schematic for a footswitching pedal for the amp,can be designed,there's nothing like referring to a schematic or service manual to gain wanted info....
From that,a schematic for a footswitching pedal for the amp,can be designed,there's nothing like referring to a schematic or service manual to gain wanted info....
Genius is not all about 99% perspiration, and 1% inspiration - sometimes the solution is staring you right in the face.-Frequencycentral.