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Other Stuff => Archived Manufacturer Circles => Music Reference => Topic started by: 6BQ5 on 29 Mar 2009, 10:28 pm

Title: New RM-C4 Preamp: Tubes as regulators ....
Post by: 6BQ5 on 29 Mar 2009, 10:28 pm

I notice that with the new C4 preamp, Roger is now using various tubes as regulators rather than solid-state. Given all the thought he puts into parts selection, anyone know why OA2 tubes (and some WE variants) are now being used rather than solid-state?

Title: Re: New RM-C4 Preamp: Tubes as regulators ....
Post by: Roger A. Modjeski on 30 Mar 2009, 12:32 am

Gas regulators are simple to apply and work well in certain circuits like the C-4. I'm not stuck to one particular way of doing things. BTW the WE tubes are the signal tubes and very nice.

Title: Re: New RM-C4 Preamp: Tubes as regulators ....
Post by: gregdee on 20 Oct 2009, 05:36 pm

Quote from: Roger A. Modjeski on 30 Mar 2009, 12:32 am

Gas regulators are simple to apply and work well in certain circuits like the C-4. I'm not stuck to one particular way of doing things. BTW the WE tubes are the signal tubes and very nice.

Hi Roger

please write me back
I am curious to find more about your C-4 Pre

Greg