Hello guys.
I am building SB4000 compressor (latest generation of GSSL clone...).
Well, recently i bough few really old modules from vintage audio console (Schlumberger) and i also got some spare parts (2 audio transformers from preamp modules..). My plan is to incorporate trannys in SB 4000...
Few years someone posted measurement results here on prodigy pro site, so I will c/p it and post a photo of trannys.
Any information or suggestion would be more then wellcome. I am not so much in electronic part of the story, but feel free to post any data od tip. Friend of mine that helps me with this project is experienced electronic engineer..
Schlumberger p 17172 transformer measures:
primary: 48.59H@1kHz & 113.6h@120Hz dcr~530ohm 216pF@1kHz 13.78nF@120Hz
secondary:2.897H@1kHz & 8.332H@120Hz dcr ~40ohm 3.49nF@1kHz 192nF@120Hz
when used 1:4 20Hz - 22Khz (sound card limit, RMAA) -2.5dB@17Hz +1.5db@22kHz
when used 4:1 20Hz - 22Khz (sound card limit, RMAA) ~flat
Thanx in advance
Ivan
I am building SB4000 compressor (latest generation of GSSL clone...).
Well, recently i bough few really old modules from vintage audio console (Schlumberger) and i also got some spare parts (2 audio transformers from preamp modules..). My plan is to incorporate trannys in SB 4000...
Few years someone posted measurement results here on prodigy pro site, so I will c/p it and post a photo of trannys.
Any information or suggestion would be more then wellcome. I am not so much in electronic part of the story, but feel free to post any data od tip. Friend of mine that helps me with this project is experienced electronic engineer..
Schlumberger p 17172 transformer measures:
primary: 48.59H@1kHz & 113.6h@120Hz dcr~530ohm 216pF@1kHz 13.78nF@120Hz
secondary:2.897H@1kHz & 8.332H@120Hz dcr ~40ohm 3.49nF@1kHz 192nF@120Hz
when used 1:4 20Hz - 22Khz (sound card limit, RMAA) -2.5dB@17Hz +1.5db@22kHz
when used 4:1 20Hz - 22Khz (sound card limit, RMAA) ~flat
Thanx in advance
Ivan