Rouge Un - a red preamp featuring Lundahl , 5534 & pumpkin output

[KrIVIUM2323]

Yes my description was confusing, let me rephrase it: on one deck you switch attenuation before the opamp for the 5 first positions then for 6 to 11 you change resistor value around the opamp ( feedback loop) on the second deck ( and bypass any attenuation happening before the opamp), the last 12th position is unused/blank.

It's unusual approach to use attenuation before entering opamp. I remember many old time members being sckeptical about this as it have a potential 'to suck sound' ( whatever it means) iirc. Never been bothered by this in use with the 430mk2 i had access to in studio, so i don't know if concerns were legitimate. Neve did things his own way anyway and he probably have some very valid reason to do so...

I think the switch needs to be mbb but it's been a while since i had a 430 opened in front of me so i might be wrong about it?

 

[thomasdf]

For ultimate p*rn I was mostly concerned with finding originals TDA1034N for the first stage

Re the switch, I’ll prototype and report back one of these days.
Doesn’t seem strange to attenuate before gain, it’s commonly done with tube designs for instance, and Rupert’s early solid state designs are inspired by / take roots in tube design : transformer isolation and general topology / design blocks

 

[laitue5]

Hello, I'm in for two pumpkins.