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Hey guys, not sure if any of the rest of you use REW or have used REW (Room EQ Wizard) in the past, but I have been using it solely for my measurements of the Wolverine to date, and John has been kind enough to implement some suggested changes to make this process better in his new releases. If you can spare some $ and donate, I am sure that he would much appreciate it for a Free software that he has been working on for the better part of 20 years.
https://paypal.com/donate/?hosted_button_id=P2536YZBMTYV2&source=url
Thanks!!
https://paypal.com/donate/?hosted_button_id=P2536YZBMTYV2&source=url
Thanks!!
i'll be happy to support a bit. Haven't been using REW yet but was planning to when in due time my Wolverine awakens🙂....What kind of changes did John implement?
reg
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@STUART...been reading the new guide a lot last couple of days......quite an improvement I must say. I did find something which might put somebody on the wrong foot.
Q7 and Q8 markings on the pics should be swapped If I assume the silkscreen and the direction of the heatsink is leading on the PCB......
Q7 and Q8 markings on the pics should be swapped If I assume the silkscreen and the direction of the heatsink is leading on the PCB......
I don't want to take the thread off topic, sorry it was a call out for support. So if you or anyone wants to see the changes you can take a look here.
https://www.avnirvana.com/threads/v5-20-14-early-access-build.11154/
Cheers
I'm picking the drivers for my Wolverine with 71V rails:
KSC3503E/KSA1381E for the pre-drivers
MJL3281/MJL1302 for the outputs.
For the drivers, I'm choosing between:
MJE15032 / MJE15033
2SC4883A / 2SA1859A
The Sanken drivers are faster than the MJEs
The MJEs are more robust than the Sankens.
The MJEs were tested, the Sankens were only simmed.
Which would you pick?
*Edit: I think the Sankens are obviously better in the position, but I want to hear someone smarter than me say it. *
KSC3503E/KSA1381E for the pre-drivers
MJL3281/MJL1302 for the outputs.
For the drivers, I'm choosing between:
MJE15032 / MJE15033
2SC4883A / 2SA1859A
The Sanken drivers are faster than the MJEs
The MJEs are more robust than the Sankens.
The MJEs were tested, the Sankens were only simmed.
Which would you pick?
*Edit: I think the Sankens are obviously better in the position, but I want to hear someone smarter than me say it. *
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I've tested the sankens in multiple Wolverine builds and they would be my choice
I find my self with a significant surplus of parts for the Wolverine. I can put together kits for most of the IPS and Output boards. My semis are On-semi, most of the resistors are from the optional CMF column. I have the caps, but a few of them will be electrically equivalent substitutions that will fit. Most of these parts are at 8% over the mouser 10-piece price (I had to pay sales tax). Exceptions are the large input caps/mica caps/output semis and trim pots. Any one interested, let me know by PM.
Hi Guy's,
The build guide is now updated.
Current version is now 30. The first post and the Dropbox folder has been updated.
Revisions are noted in the revision section.
What a great idea, definitely worth supporting John the developer of REW. I made a donation and said thank you for supporting the Wolverine project. If you guys choose to make a donation, maybe make mention of the wolverine project so John knows that the work he has recently done in conjunction with @fireanimal specifically for this project was greatly appreciated.
is that any other schema use quadrupler output transistor pointing to same direction??????????
On the EF3-3 board, why do the jumpers J101 and J102 have to be installed on the underside (solder side) of the board ? Is it due to proximity of the drivers heatsink ?
Q103, Q104 question. I've measured around 30 mje340g's. I've got a few in hfe 120 range and a few in teh 110 range and the majority below 100 with lowest of 79. Whichones should one use for Q103 and Q104?
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It doesn't matter which just choose RCC to match but I prefer to keep them all the same so pick 4 at 95 for example or 4 at 115.
This is an output triple Emitter Follower with 3 or 4 pairs of output transistors. You can stack an additional emitter follower in front of the triple, but that is rarely done. Usually at that point, the circuits start using various folded or DoubleCross(TM) topologies. I'm not real clear what your question is.