Thank you all and Hello, Alice based mic, newbee results

[The Erk]

Having been haunting this forum for some time, I though it's about time I tried to contribute something back.

This forum has been an invaluable tool in building my first microphone, and I am quite pleased with the result.
It started out as building an "Alice" circuit out of bits robbed from a cheap donor microphone and what I had laying around.  Capsule is a tsb165a not the original 12mm from the donor.

After a bit of messing about and deciding I wanted battery instead of phantom power, the PCB attached to this and the next few posts came into being.

It seems appropriate that I share this with the people who gave me the information I needed to make a start,  the attached PDF files should allow you to produce toner transfer copies of the board for etching.

While I am no expert on microphones, this cheep little circuit using a 2sk596  fet initialy stolen from the donor microphone,  has a pleasant tone, and sounds close to how I imagine I sound while singing(badly).

I welcome thoughts on improvements alterations and alternative uses/components.

I also hope it may offer encouragement or insperation to those about to take the plunge.

 

[The Erk]

PCB layout, actual size with notes on ommited values, connections, and build notes

 

[The Erk]

back copper for toner transfer, does not need mirroring before printing

 

[The Erk]

Front copper, requires mirroring before printing to transfer medium, also ommiting pads makes construction simpler.

 

[The Erk]

schematic drawing,

 

[Phrazemaster]

I just wanted to officially welcome you here Erk; thanks for your hard work and for sharing your project with us. I'm not building anything like this right now, but it's great you took all that time to upload this for us. Hopefully other members will make this project and give you usefull feedback.

Welcome and nice to meet you!

Mike

 

[micaddict]

Yes, welcome.  Good to have you with us.