So I'm planning on building this circuit to amplify an electret mic (WM-61A).
As far as I can tell (which isn't much as I know very little about electronics) the circuit does not provide power for electret capsules.
So, is this all that's required, and is it an efficient and reliable way of providing power?:
(R7 and C4 have been added to the original circuit)
The micrphone spec sheet says that it requires a 2.2k resistor at 2v, so I'm wondering if 2.2k and 12v is a high enough value.
Also, c4 should be able to be quite a low uF value, correct? I have 22uF caps already, but it would be handy (size wise) if I could go with say 1uF caps.
Thoughts anyone?
As far as I can tell (which isn't much as I know very little about electronics) the circuit does not provide power for electret capsules.
So, is this all that's required, and is it an efficient and reliable way of providing power?:
(R7 and C4 have been added to the original circuit)
The micrphone spec sheet says that it requires a 2.2k resistor at 2v, so I'm wondering if 2.2k and 12v is a high enough value.
Also, c4 should be able to be quite a low uF value, correct? I have 22uF caps already, but it would be handy (size wise) if I could go with say 1uF caps.
Thoughts anyone?