A step-drill and Neutrik combo XLR/TRS connectors will only require about 1 square inch of panel real estate a piece.
There are many many ways to turn differential into SE with gain. Perhaps the easiest and cleanest is through some of the latest opamps like my favorites (OPA1656 or OAP1642). A simple Meanwell or Murata PCB mounted mini DC/DC converter will take 36v and make +/-15v for the opamps. Or use the 36v rail directly with the opamps referenced to an 18v virtual ground and AC couple them.
As an example of an opamp based one from Rod Elliot is this:
Or a single OPA1632:
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Hello everyone, I am hooked on this vfet amp and would like to get it, if the odds allow it, but I am a tube amp builder and do not have much experience with solid state amps, except for a van alstine 60watter I built recently. At the volume level i listen to, which is adequate for an appartment, hence pretty low, on my fullrange audionirvanas in ported cabinets, it sounded uninspiring un the soundstage department ( compared to my tube set decware 4watter or 2watter, the 25th anniversary amp ). It sounded fabulous though in the bass department and had great dynamics, transient response, warmth etc., So i decided to explore the ss world, because my tube amps lack authority in some of those categories. Could anyone please enlighten me as to what i could expect from the vfet sony amp? I would hate to build it and have to turn up the volume to enjoy it. Thank you
I just watched this YouTube video:
Burning Amp 2017 - Nelson Pass - YouTube
This is Burning Amp 2017 and Papa was talking about the remaining Sony V-FET parts for making an amp with just one P or N channel with 10W output and a transformer front end. He said it'll be available in the coming months.
So it took nearly 4 yrs to become a reality.
Like all good things in life, you just have it wait for them... 🙂
Burning Amp 2017 - Nelson Pass - YouTube
This is Burning Amp 2017 and Papa was talking about the remaining Sony V-FET parts for making an amp with just one P or N channel with 10W output and a transformer front end. He said it'll be available in the coming months.
So it took nearly 4 yrs to become a reality.
Like all good things in life, you just have it wait for them... 🙂
Kit Minus the VFETs
I'm not a frequent poster but I have been a VFET collector since my first Sony TA-4650 in 1978. I managed to acquire many of Sony's other models before they became popular and also purchased spare VFETs "for future" from Sony's Dallas service center many, many years ago. I would love to be able to purchase the kit minus the VFETs.
I'm not a frequent poster but I have been a VFET collector since my first Sony TA-4650 in 1978. I managed to acquire many of Sony's other models before they became popular and also purchased spare VFETs "for future" from Sony's Dallas service center many, many years ago. I would love to be able to purchase the kit minus the VFETs.
On the topic of step drills. They can easily be used in a cordless drill and saves having a lot of separate drills bits of specific sizes.
https://www.amazon.ca/Neiko-10169A-Titanium-Automatic-5-Piece/dp/B07GL5H8NP/ref=sr_1_6?crid=3ASL1FIANQ9H2&dchild=1&keywords=step+drills&qid=1617593641&sprefix=step+drills%2Caps%2C166&sr=8-6
Regards,
Dan 🙂
jamayfie said:
In my experience for deburring holes, these step drill bits don't have the right angle. I much rather use the larger larger sized drill bit that has a steep angle so it removes the burrs closer to the surface. This is especially important when drilling holes in thin sheets of say 2mm or less.
@raduschka
I've spent a long time building tube amplifiers and found that if you want authority and slam of the transistor power amp, you need to have deep pockets. It's a reason why tube types like the 211 and 845 are way out of reach for the average audiophile enthusiast. I find the VFet offers the best balance in the triode sound form. No hassles with filament noises / hum from tube amps. Ultra long life (no worry of tube degrading because of too many hours racked up), much safer due to lower working voltages (if you have young children around).
I also don't expect the VFets will go for snob pricing like NOS 300B Western Electrics. Even certain small signal tubes like NOS 6SN7 go for well more than what a single Sony VFet would sell.
Just in case I am not lucky, I was able to purchase two NOS TOKIN THF51S VFETS from watanabletomoaki a couple of days ago. He might still have some available.
It will be the same thread, so no worries about double entries. And again the same thread will be used for the 2nd batch of N channel (winners from batch 1 removed). Post once and relax.
Is the chassis diyAudio IP? It would be a nice option to be able to contact Gianluca to purchase heatsinkless chassis to build matching PSU's.
.....or just a complete extra chassis so it would be possible to build it as mono blocks?
In this case a smps may be possible to fit inside......in each chassis.
In this case a smps may be possible to fit inside......in each chassis.
Yes, the design is diyAudio IP.
A matching chassis for PSUs and another rear panel for Neutrik or other power input has always been on the cards but "one thing at a time". For now, the offering is with the SMPS and DIN power input on the rear panel, and anything more than that is DIY.
The current run containing the limited number of VFETs is strictly one per member and the first run of chassis were produced to match that run. Once that's out of the way, however, yes you can buy multiple chassis when the VFET-less options become available (batch 3)?
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They would have to be mono blocks for what I have in mind 😀
It's only my opinion so worth nothing; to coin a phrase, 'The only good SMPS is a dead SMPS'
New VFET
Considering the interest in SIT tranistors and the context (shortage in solid state device will surely reneewd interest in our respective countries for local manufacturing), do you think it will be possible to see a new SIT transistors manufacturing in the years to come ?
Considering the interest in SIT tranistors and the context (shortage in solid state device will surely reneewd interest in our respective countries for local manufacturing), do you think it will be possible to see a new SIT transistors manufacturing in the years to come ?