Yairisan
Newbie level 5

My first post on this forum.
I am breaking the mic pre's of a Soundcraft 6000 analog console into half-rack modules, enabling me to install, say, 4 channels in a 2U box for mobile recording.
Each module retains the Mic pre and EQ sections, and there is space for a DI (Line level) 1/4" jack at the bottom front, so the half-rack format of each module follows the lines of a typical Mic Pre, with EQ (switchable in/out) also for EQ'ing while tracking/going into the recorder. The recorder is an Alesis HD24.
Everything works fine - the Pre, the DI input and EQ - which I have been testing using the original power supply unit of the Soundcraft 6000, but need now to make a dual -17/+17 power supply of my own to fit into the back of the rack of pres.
Each module uses 5 TLO7272CP chips, so need to acquire:
1. A -17 - 0- +17VDC power supply schematic (can't find ANYTHING for this on the Internet).
2. With the above specs, what mA capacity I need.
Is it just a matter of adding up the total mA rating of the TLO's (x5), and basing the calculated PSU rating on the total no. of modules used?
Sorry, this is long, but wanted to explain in detail.
Sincerely all,
Robin.
I am breaking the mic pre's of a Soundcraft 6000 analog console into half-rack modules, enabling me to install, say, 4 channels in a 2U box for mobile recording.
Each module retains the Mic pre and EQ sections, and there is space for a DI (Line level) 1/4" jack at the bottom front, so the half-rack format of each module follows the lines of a typical Mic Pre, with EQ (switchable in/out) also for EQ'ing while tracking/going into the recorder. The recorder is an Alesis HD24.
Everything works fine - the Pre, the DI input and EQ - which I have been testing using the original power supply unit of the Soundcraft 6000, but need now to make a dual -17/+17 power supply of my own to fit into the back of the rack of pres.
Each module uses 5 TLO7272CP chips, so need to acquire:
1. A -17 - 0- +17VDC power supply schematic (can't find ANYTHING for this on the Internet).
2. With the above specs, what mA capacity I need.
Is it just a matter of adding up the total mA rating of the TLO's (x5), and basing the calculated PSU rating on the total no. of modules used?
Sorry, this is long, but wanted to explain in detail.
Sincerely all,
Robin.