Here is a different approach....
A simpler Wolverine with regulated Cascode , CCS , and Beta device can get Spooky PSRR and wolverine THD WITHOUT
TMC.
Damn , I'm even just using a LED CCS and a Bootstrapped VAS. Still can get 1 PPM with a single 47pF miller.
20hz PSRR drops by almost 30dB , as well.
I also might just figure out how to apply a VCCS (voltage controlled current source) and servo this , as well. he he !!
With the full wolverine TMC NFB and both CCS's , I should be able to beat the wolverine by a large margin.
The caps (multipliers) are not as much of a factor with PSRR , ripple rejection mostly is a feedback mechanism.
OS
A simpler Wolverine with regulated Cascode , CCS , and Beta device can get Spooky PSRR and wolverine THD WITHOUT
TMC.
Damn , I'm even just using a LED CCS and a Bootstrapped VAS. Still can get 1 PPM with a single 47pF miller.
20hz PSRR drops by almost 30dB , as well.
I also might just figure out how to apply a VCCS (voltage controlled current source) and servo this , as well. he he !!
With the full wolverine TMC NFB and both CCS's , I should be able to beat the wolverine by a large margin.
The caps (multipliers) are not as much of a factor with PSRR , ripple rejection mostly is a feedback mechanism.
OS
Attachments
Hi, Guy's there are still a few second group buy boards available if anyone is interested in starting the fully tested and refined Wolverine project. Pm me, @jjs or @fireanimal if you like to order some complete with detailed Schematic, comprehensive BOM including mouser part numbers for 49v, 57v, 64v & 70v rails. Then you can put it all together with the 71 page illustrated color build guide.
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Dude, give it a rest, get over it... it's a great amp with awesome instruction, and a great deal of flexibility. I'm sure you could have done it better, but you didn't. This seems to be a theme with you starting projects, and leaving them for extended periods, only to come back, and when someone else picks up the torch, then you appear, berate, and bemoan the way in which they did it.
If they had not done so, I have no doubt the project would remain unfinished to this day.
JT
Wow , I just said "boo" after a beer . Touchy , touchy.
As far as the Wolverine , I'm over it - quite.
anyway. Didn't even get a board out of it , so "Boo" !
OS
As far as the Wolverine , I'm over it - quite.
What BS , the wolverine was built and tested in 2015 (slewmaster). Any work I did do went to hell
anyway. Didn't even get a board out of it , so "Boo" !
OS
@ostripper
I wanted to address a situation regarding the distribution of boards within our design team. Please allow me to clarify the circumstances to ensure transparency and fairness.
When the boards were produced, every member of the design team received their share. In line with our values, many of us attempted to do the right thing by reaching out to each other to offer additional boards. Regrettably, despite multiple attempts to contact you during the distribution, we did not receive any response from your end.
It is truly unfortunate that we were unable to send you any boards as we had no way of knowing your interest in obtaining a pair. However, we sincerely apologize for any inconvenience this may have caused you.
To rectify this situation, we would like to extend our offer once again. If you are interested in receiving a pair of boards, kindly send a private message to me with your current address. We will be more than happy to provide you with either the EF3-3 or EF3-4 variant, according to your preference.
Our intention is to ensure that everyone on the team has equal access and opportunities, which is why we are keen to make amends. We appreciate your understanding and cooperation.
I feel the need to address a recent statement that was made that appears to trivialize the efforts and achievements involved in the development of the Wolverine amplifier. While we appreciate and respect your original work, it is essential not to undermine the dedication and hard work of our team.
As a team of ten individuals, we committed well over 2000 hours to this project, possibly even more. Moreover, we are continuously striving to improve and support those who choose to build this amplifier, even addressing minor details to enhance its performance.
It is important to clarify that what was delivered to the DiyAudio forum was not just a hastily assembled and tested amplifier. It would be misleading to present it as such. A project of this nature requires an adequately thorough testing process, which certainly cannot be accomplished within a few days. To assume, without any substantial test data, that one of your new amplifiers would surpass the Wolverine in superiority is premature.
If indeed one of your new amplifier proves to be exceptional, we have no issue with that and would congratulate you on that achievement. However, I implore the you to refrain from downplaying or trivializing the performance of the Wolverine or the hard work put in by everyone involved.
Let us acknowledge the dedication, passion, and attention to detail that each team member has contributed to this Wolverine project and the joy and satisfaction that it has brought to many members of the DiyAudio community.
I'm "cooler" than this ..... this is not a big issue. I moved to a part of the 3'rd world USA where there is NO internet (believe it or not) - hence the new Biden
initiative. I like "PPM fetishism" , I continue the tradition. If Stuart would PM me I would accept some sample boards and even subject them to my new
designs. The complicated explanation sounds like something a trump legal team would say ... he he..
I'm not a bad guy , my new designs are not only Wolverine compatible , but are SOTA. I've even complimented the Wolverine builds as "amp porn" .
As I am presently immersed in spreadsheets and Mouser BOM;s , I won't "not finish' what I started. I have the main artwork finished for a very broad
amp "ecosystem" finished. It won't take me 2k hours to correlate design/layout/documentation. I THANK the wolverine team for the real world feedback
(I read all of it) and testing to push my stuff beyond any OEM (Halcro included).
OS
initiative. I like "PPM fetishism" , I continue the tradition. If Stuart would PM me I would accept some sample boards and even subject them to my new
designs. The complicated explanation sounds like something a trump legal team would say ... he he..
I'm not a bad guy , my new designs are not only Wolverine compatible , but are SOTA. I've even complimented the Wolverine builds as "amp porn" .
As I am presently immersed in spreadsheets and Mouser BOM;s , I won't "not finish' what I started. I have the main artwork finished for a very broad
amp "ecosystem" finished. It won't take me 2k hours to correlate design/layout/documentation. I THANK the wolverine team for the real world feedback
(I read all of it) and testing to push my stuff beyond any OEM (Halcro included).
OS
Hello. I would appreciate getting in on this group buy but am too new to private message
Barry
Spend the last two days reading ALL 107 pages. The data looks impressive and really dedicated work here
Alot of gold in this thread for DIY'ers.
Maby I forgot or simply was to tired last evening when I finished my reading...
But, is there any listening impressions reviewed on this amp??
I'm on the edge of buying some modules, only the KSC3503E has me doubt hens they are hard to get. I have the D's in my office. Really did hope till the end that TTA/TTC004 would succeed..
Anyway
Best regards
Alot of gold in this thread for DIY'ers.Maby I forgot or simply was to tired last evening when I finished my reading...
But, is there any listening impressions reviewed on this amp??
I'm on the edge of buying some modules, only the KSC3503E has me doubt hens they are hard to get. I have the D's in my office. Really did hope till the end that TTA/TTC004 would succeed..
Anyway
Best regards
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