davelectronic
- Dec 13, 2010
- 1,087
- Joined
- Dec 13, 2010
- Messages
- 1,087
Hi all.
Ive not asked many questions on things iam doing, but i have one now.
What this is, well i have had enough of cheap return slide switches in my CB microphones.
The project i have tried and tested first was a quick set up.
Its a relay DPDT to replace the slide switch, and a momentary switch to operate the relay, any way iam using a dynamic microphone on a tripod, problem, the audio is to quiet, so ive bought a small kit, a preamp for the microphones output.
I will leave links to the relay pin out and what was the old switch, and the kit, why a kit, well its quick in this instance, i could build the preamp from a schematic, but this kits is peanuts, so i went with that, as well it was in my local maplins store 5 minutes away, ok iam lazy really.
On production of the said idea, can any one see a problem combining the preamp with the microphone, oh the mic has a 500 ohm coil, the preamp an out of 1k.
Reasons why, well the relay/momentary switch will way outlive a cheap mic slide return switch. any feedback appreciated. Dave. PS links below.
http://www.maplin.co.uk/k1803-universal-mono-pre-amplifier-2921
I forgot the microphone, i described it already, the link for it is below, its actually this model.
http://www.maplin.co.uk/general-purpose-dynamic-microphone-9832
Ive not asked many questions on things iam doing, but i have one now.
What this is, well i have had enough of cheap return slide switches in my CB microphones.
The project i have tried and tested first was a quick set up.
Its a relay DPDT to replace the slide switch, and a momentary switch to operate the relay, any way iam using a dynamic microphone on a tripod, problem, the audio is to quiet, so ive bought a small kit, a preamp for the microphones output.
I will leave links to the relay pin out and what was the old switch, and the kit, why a kit, well its quick in this instance, i could build the preamp from a schematic, but this kits is peanuts, so i went with that, as well it was in my local maplins store 5 minutes away, ok iam lazy really.
On production of the said idea, can any one see a problem combining the preamp with the microphone, oh the mic has a 500 ohm coil, the preamp an out of 1k.
Reasons why, well the relay/momentary switch will way outlive a cheap mic slide return switch. any feedback appreciated. Dave. PS links below.
http://www.maplin.co.uk/k1803-universal-mono-pre-amplifier-2921
I forgot the microphone, i described it already, the link for it is below, its actually this model.
http://www.maplin.co.uk/general-purpose-dynamic-microphone-9832
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