This is my version of a late 1970 API 312 PreAmp.
I like the old Altec design so...
I bought an API 312 MicPre from David Kulka.
The 312 schematic told me that there's a dedicated VU meter output. I had an old Altec meter panel in my storage so I decided to use the meter panel and a 2 HU case I once bought from Purusha to house the preamp because it perfectly fits with the meter panel. The meter panel only consisted of the VU meter and the switch.
It took me a while to bring the switch back to life. All in all I spend some 750$ for the parts, but it's worth every buck.
I used Joe Malone's wonderful GoBetween, DI and 3 rail power supply PCB to finish the preamp. Thanks Joe.
It's one of the best PreAmps I ever used... It's quite, has a wonderful spectral balance and less pop/plop noises than other MicPre's... I wonder why... :grin:
I like the old Altec design so...
I bought an API 312 MicPre from David Kulka.
The 312 schematic told me that there's a dedicated VU meter output. I had an old Altec meter panel in my storage so I decided to use the meter panel and a 2 HU case I once bought from Purusha to house the preamp because it perfectly fits with the meter panel. The meter panel only consisted of the VU meter and the switch.
It took me a while to bring the switch back to life. All in all I spend some 750$ for the parts, but it's worth every buck.
I used Joe Malone's wonderful GoBetween, DI and 3 rail power supply PCB to finish the preamp. Thanks Joe.
It's one of the best PreAmps I ever used... It's quite, has a wonderful spectral balance and less pop/plop noises than other MicPre's... I wonder why... :grin: