Hi,
I recently purchased an old Schoeps CMT34 microphone, it's great but it should be powered by a 12V phantom power (P12)
I looked everywhere for a P12 power supply schematics but I never found one.
The two informations I have are :
- standard IEC1938 says : No load voltage 12V (+/-1V), supplied current up to 15mA max, R_phantom 680 ohms (respictively 48V, 10mA and 6.8k for a 48V phantom power)
- I found plenty of 48V schematics including this one on http://sound.westhost.com/project30a.htm
If I use this schematics and just change the 48V with 12V instead and 680 ohms instead of 6.8k will it be ok ?
I recently purchased an old Schoeps CMT34 microphone, it's great but it should be powered by a 12V phantom power (P12)
I looked everywhere for a P12 power supply schematics but I never found one.
The two informations I have are :
- standard IEC1938 says : No load voltage 12V (+/-1V), supplied current up to 15mA max, R_phantom 680 ohms (respictively 48V, 10mA and 6.8k for a 48V phantom power)
- I found plenty of 48V schematics including this one on http://sound.westhost.com/project30a.htm
If I use this schematics and just change the 48V with 12V instead and 680 ohms instead of 6.8k will it be ok ?