If you are a nut, there is a way to configure the cascode to null out the CCS capacitance... but now we are entering the overkill arena.
I think most of us know of Boxall and base current recirculation. I always wanted an excuse to use it in an amp but in the end it always seems to turn out fairly useless.
Project update.
Hi Guy's.
The entire project set of filesfor the wolverine has now been sent to OS for his review.
Hi Guy's.
The entire project set of filesfor the wolverine has now been sent to OS for his review.
I think most of us know of Boxall and base current recirculation. I always wanted an excuse to use it in an amp but in the end it always seems to turn out fairly useless.
It has its uses... the capacitance of the CCS matters are a frequency that is too high for audio. In other areas, there are distortions that will swamp any improvement that you get from the base current recirculation.
Hi Guys,
Has anyone had any contact with OS?
I sent him the files for review but unfortunately have not heard anything from him as yet.
Has anyone had any contact with OS?
I sent him the files for review but unfortunately have not heard anything from him as yet.
Go for it Stuart.
I am happy to buy a pair of prototype PCBs and help reduce that cost. Have the semis (incl optionals) and most of the passives in stock to build and test. If it happens, plan to use a +/-70Vdc rail power supply.
I am happy to buy a pair of prototype PCBs and help reduce that cost. Have the semis (incl optionals) and most of the passives in stock to build and test. If it happens, plan to use a +/-70Vdc rail power supply.
Hi Stuart, I think yours is actually the best approach to follow at the moment. We all wish OS to come back in giving his support to this project, but, as Keantoken claimed some posts ago, the only way that remains to continue improving it is actually starting to build. I won't (can't) do that at the moment cause I'm not skilled as the most of you and I'm now involved in my very first Honey Badger building. But I think that the Wolverine is a truly interesting project which I'll likely try in the next future.
Regards,
Gaetano.
Regards,
Gaetano.
Hi Guy, As OS is away and not available for comment or review ATM what do you all think about moving forward with a prototype board like the one attached. I have created a single board from the wolverine IPS and the EF3 board which should simply the prototype process.
Comments welcome.View attachment 961913
If gerbers will be available in this first test bench 😉
Anyone who wants to be a tester PM myself or Stuart so we can determine how many prototype boards to order.
The prototype will have the Wolverine board integrated onto the EF3 board so we don't have to order two sets of boards.
Jeremy
The prototype will have the Wolverine board integrated onto the EF3 board so we don't have to order two sets of boards.
Jeremy
And your global location. We are thinking of sending out from Australia, USA and possibly Italy.Anyone who wants to be a tester PM myself or Stuart so we can determine how many prototype boards to order.
The prototype will have the Wolverine board integrated onto the EF3 board so we don't have to order two sets of boards.
Jeremy
If you want to be a tester for the prototype, Stuart is going to order boards on Wednesday so this is your last chance to let us know.
Jeremy
Jeremy
Is there any information on digitally controlled bias that OS was working on, that can be shared?
Project Update.
Prototype board have been order.
They will be sent out to the people who requested them for prototype testing.
The boards should arrive in a week or so.
Prototype board have been order.
They will be sent out to the people who requested them for prototype testing.
The boards should arrive in a week or so.
yeap thimios does not play, he does hand on quickly 😀
Hi Juan, unfortunately this time i'm out of the game...
No diy pcb is available not free gerbers are here.
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This is OS'S project. He has all the files. This project was intended for the diyaudio store. Once he returns he can hand out free gerbers if he chooses. But that's his call to make not mine.Hi Juan, unfortunately this time i'm out of the game...
No diy pcb is available not free gerbers are here.
i'll hope i'll be able to build some of this amps when they are ready. for now. i'm too busy with work, 9 ch honey badger amps and multiple other amps.
I do find it hard to do a 5 ch amp with the daughter boards. so i guess i stay with the original honey badger for the surround.
I do find it hard to do a 5 ch amp with the daughter boards. so i guess i stay with the original honey badger for the surround.
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