What's on Deck..
I have PCBs already waiting for some parts to arrive from Mouser. This is the version of the F6 that I originally built to make the most of higher voltage rails & higher bias current supported by the FQH44N10 Mosfets. The Diamond buffer is a minor variation of the Austin input stage that Mark J. designed for the M2x. It became my favorite and remains in semi-permanent installation in my M2x. The Toshiba TTC004B and TTA004B bipolars are able to withstand higher voltage and power dissipation than the ZTX parts used originally. This version of the F6 should be able to run up to 28 or 30V rails depending on heat sinking capacity. Think 400mm deep chassis.
I have a tube of Fairchild NOS FQH44N10 parts waiting for this one. Will also try a set of the IRFP048 to see how they sound in comparison. These boards are going to be swapped into my original F6 chassis to give them a workout.
I have PCBs already waiting for some parts to arrive from Mouser. This is the version of the F6 that I originally built to make the most of higher voltage rails & higher bias current supported by the FQH44N10 Mosfets. The Diamond buffer is a minor variation of the Austin input stage that Mark J. designed for the M2x. It became my favorite and remains in semi-permanent installation in my M2x. The Toshiba TTC004B and TTA004B bipolars are able to withstand higher voltage and power dissipation than the ZTX parts used originally. This version of the F6 should be able to run up to 28 or 30V rails depending on heat sinking capacity. Think 400mm deep chassis.
I have a tube of Fairchild NOS FQH44N10 parts waiting for this one. Will also try a set of the IRFP048 to see how they sound in comparison. These boards are going to be swapped into my original F6 chassis to give them a workout.
These caps were also in the premium 300b amp of the much missed Maison de l'Audiophile ( with Jean Hiraga) in ParisInteresting share from mighty ZM...
I recall Tubelab (George) also recommending motor-run caps for his tube amplifier...
But tubes are for sissies...
On a different note, can these tweaks be measured?
My plans are to build and test the new F6 Diamond PCBs over the weekend; parts are scheduled to arrive this afternoon. There is a lot more going on with this design, and I want to make sure everything is Ok before releasing it.
As with the previous boards, these are just for the Jensen JT-123-FLPCH.
Here is a list of parts that are specific to this build, plus some recommended resistors and trimpots.
As with the previous boards, these are just for the Jensen JT-123-FLPCH.
Here is a list of parts that are specific to this build, plus some recommended resistors and trimpots.
