aA 3U400mm chassis would be mere then needed. I'm now building a 2 ch with a 4x40V transformer (+/-57VDC pr ch.) and 100mA bias pr outputpair. that will not be any stress what so ever.
Can I substitute the BC559C for a 2N5087 or 2N4058 and the BC549C for a 2N5210 all original National? The specs for all three have similar specs with the called out transistors.
Member
Joined 2021
We will not be posting the Sprint layout file or the Gerber files for the PCB’s, so please don’t ask.
I will however post a Sprint layout blank template for the IPS board in the future. Members that choose to, can then develop their own IPS boards.
Member
Joined 2021
Hi guys,
first of all, thanks for your awesome work. I'm really looking forward to build this promising amp!
But therefore obviously I need a suitable PSU... Since the diyAudio Unversial PSU is not in stock for weeks and I'm not able to find any information when it will be, I wanted to ask, if you can maybe give me a hint, what a suitable PSU board would be and where I could get one?
Thanks in advance!
first of all, thanks for your awesome work. I'm really looking forward to build this promising amp!
But therefore obviously I need a suitable PSU... Since the diyAudio Unversial PSU is not in stock for weeks and I'm not able to find any information when it will be, I wanted to ask, if you can maybe give me a hint, what a suitable PSU board would be and where I could get one?
Thanks in advance!
One option - search for a guy called prasi.
I think he still sells two different power supply boards. One uses diodes and the other uses Mosfets.
I think he still sells two different power supply boards. One uses diodes and the other uses Mosfets.
@Wolverine developers team:
Thank you again for all of your hard work! While waiting for the pcbs to arrive, I've ordered parts and begun designing the front and rear panels for my first Wolverine amplifier. As you can see from the attached photos, I like to provide attribution to the circuit designers whose work is featured in my projects. I'd like to do the same for my Wolverine build.
Are you going to copyright the design? If you don't mind be memorialized, how should the team be referenced (e.g., "Wolverine design team" or by actual names)?
Regards,
Scott
Thank you again for all of your hard work! While waiting for the pcbs to arrive, I've ordered parts and begun designing the front and rear panels for my first Wolverine amplifier. As you can see from the attached photos, I like to provide attribution to the circuit designers whose work is featured in my projects. I'd like to do the same for my Wolverine build.
Are you going to copyright the design? If you don't mind be memorialized, how should the team be referenced (e.g., "Wolverine design team" or by actual names)?
Regards,
Scott
Attachments
Getting ready to put an order in- I don't always get the nuances between output transistors. Between these two:
2SC5200OTU/2SA1943OTU
MJL4281AG/MJL4302AG
Would there be a difference I can hear? The first ones are a couple bucks cheaper and more plentiful, but if the MJL4281AG/MJL4302AG would perform better they are not much more.
2SC5200OTU/2SA1943OTU
MJL4281AG/MJL4302AG
Would there be a difference I can hear? The first ones are a couple bucks cheaper and more plentiful, but if the MJL4281AG/MJL4302AG would perform better they are not much more.
That's a Nice thought Scott, I'll ask the other members of the team and get back to you.
Hi Guy's, please find attach a very informative document by @Bonsai (How to Wire-up an Audio Amplifier) I recommend that everyone read it and try and adhere to its layout suggestions. I also recommend checking out Tiger Toroids for your transformers. If you choose to go with them please use the following transformers spec. when ordering.
- Stabilized core
- Goss band
- Interwinding screen
- Cloth blind
- Double impregnated
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Hi Guys,
I have recently re-wired an amplifier using this method, I would strongly recommend to apply the techniques in Bonsai's document.
The improvement I saw was 10 fold in that I started with approximately 0.3 mV of "hum and noise" and after applying all the techniques I ended up with 22 uV to 26 uV (microvolts) which is essentially dead silence ear on woofer or tweeter.
It is well worth the read, I certainly learned a few new tricks.
Credit to Bonsai for putting this information out there and Stuart for sharing the document here.
- Dan
Feel free to use "The Wolverine Design Team".
@ostripper ,@keantoken ,@Harry3 ,@jjs ,@stuartmp ,@Johno ,@neilshop ,@thimios ,@thompsontechs , @Brettn56 ,@vargasmongo3435
No @ symbol of course 👍
Member
Joined 2021
Hi Guy's
I am very pleased to announce that Jeremy and I have received all the PCB's safety for the group buy.
Over the next few days we will count, sort and start organising them ready for shipping.
While I know everyone will be super keen to get their boards please remember that we both have day jobs and family commitments so please don't expect your boards next week. We will probably process them in batches based on location to help us with the task ahead of us.
Please be patient and know we are working as fast as we can and doing this for you guys at the expense of time building our own amplifier.
I will keep you all updated.
I am very pleased to announce that Jeremy and I have received all the PCB's safety for the group buy.
Over the next few days we will count, sort and start organising them ready for shipping.
While I know everyone will be super keen to get their boards please remember that we both have day jobs and family commitments so please don't expect your boards next week. We will probably process them in batches based on location to help us with the task ahead of us.
Please be patient and know we are working as fast as we can and doing this for you guys at the expense of time building our own amplifier.
I will keep you all updated.
Attachments
Thank you for all you are doing, Stuart. Don't worry, take your time. We all can't wait to get these beautiful boards and start working on them, but you have your own lives. Waiting will make the thing more tasty!
Gaetano.
Gaetano.
i know, wrong topic, but with all the knowledgeable people here i want to ask:
is the Hantek DSO2D15 a good enough scope for general amp etc, measuring?
there are so many scopes and opinions about them, its hard to decide what to buy.
regards, John
is the Hantek DSO2D15 a good enough scope for general amp etc, measuring?
there are so many scopes and opinions about them, its hard to decide what to buy.
regards, John
May I ask what the total number of orders was?
Wondering what the potential number of DIYAudio users on here building this amp...
Hi Dave,
While I'm not going to reveal that information I will say that the group buy was well received and hence the effort that has gone into the project and documentation by all the Wolverine Team.
So rest assured you are one of many building this amplifier.
Once the PCB's have been shipped I will start a new Wolverine Build Thread so people can show the progress of their build.