I’m thinking about buying a MK 171 voice changer kit but would like to use a dynamic microphone and connect the speaker output to the line input of a hi-fi. Is there any way I can do this?
I was thinking that I could lower the output of the speaker connection by using a lower 3 volt battery but I’m not sure if this would be too low for the rest of the circuit. Would increasing the resistance on the microphone connection allow a dynamic microphone to work properly?
Also, are there any sound samples of the MK 171’s effects? I’m looking for a vocoder effect like this one: youtube.com/watch?v=-hqvvNcvenU
You will need to attenuate the speaker output by means of a potentiometer before connecting it to a line-in.
Remove the supply resistor for the electret mic.
Not sure output of a dynamic mic will be able to drive the circuit, you will have to experiment.
“You will need to attenuate the speaker output by means of a potentiometer before connecting it to a line-in.”
Do you have any further info as to what potentiometer i need to buy to attenuate the speaker output?
I live in UK, so a product code and place of purchase would be VERY beneficial.
A certain auction sale would do
I will be using the kit in the following setup.
Mic - Mixing Desk (aux or group output) - patch bay - MK171 - patch bay - Mixing desk - pc to record output
I understand that i need to remove R6 to facilitate changing the mic to a jack input, but am i right in thinking i have to attenuate the output with a pot too?
Any help you guys can give would be excellent as i need to know this info before buying it.
Also if i wire up this 22k pot on the output incorrectly, will i damage the whole circuit or will it just not work until it has been rectified i.e. re-soldered the correct way?
I have finished building the kit to spec, i wanted to build the kit “as is” before changing the circuitry to a jack input and jack output but i can only seem to get a sound out if i short R5 and R6 with a screwdriver.
This makes the circuit create its own sound, not my vioce through the mic.
My soldering skills are fair so i dont think its my soldering.
Hmm, that’s strange, as the instructions seem to indicate that the resisters DO have to go in a certain way.
If the picture on the box is indeed correct, then i have R9 and R10 the wrong way round.
Trust me, if the picture shows this, then it is a coincidence.
We strongly suggest that you read a textbook on basic electronics before attempting to complete any project.