Though this is rather old request, I am re-considering this possibility, if there are members interested.
Thanks everyone for the feedback. Please take into account that one board is for two channels.
https://pmacura.cz/dispre2-jfet_en.htm
https://pmacura.cz/dispre2-jfet_en.htm
Pavel, will you also offer a symmetrical version or only an asymmetrical one? Will the ZT15VA also be available for the dispre2? I think people will also be interested in the ZT15VA.
I just started building DCG3 + UltraBiB dual mono and I think Dispre 2 would be a serious competitor... 😉
I just started building DCG3 + UltraBiB dual mono and I think Dispre 2 would be a serious competitor... 😉
I will think about ZT15VA.
Dispre 2-JFET board will be single ended (as always before), prepared to Neutrik NC3MD-H-B
https://www.neutrik.com/en/product/nc3md-h-b
that can be mount for pseudo-balanced 3-wire output. This may considerably reduce possible buzz due to ground loops, in some systems.
The PCB will be black with white silkscreen.
Dispre 2-JFET board will be single ended (as always before), prepared to Neutrik NC3MD-H-B
https://www.neutrik.com/en/product/nc3md-h-b
that can be mount for pseudo-balanced 3-wire output. This may considerably reduce possible buzz due to ground loops, in some systems.
The PCB will be black with white silkscreen.
PCB's are in production. Black with white silkscreen. Below the thumbnails to gerberview files (not in the final colours).
Ahh, what the heck.
Pavel, if you decide to offer the ZT15VA psu I'd like one also.
Black pcb's have less background noise
.
Thanks!
Pavel, if you decide to offer the ZT15VA psu I'd like one also.
Black pcb's have less background noise
.Thanks!
The original design uses 2SK170/2SJ74 JFETs. Those Toshiba parts are unobtainium, if someone does not have an old stock. There is also a danger of fakes, if purchased from unknown sources. I think we might switch to LSK170/LSJ74 by Linear Systems. Any experience with these parts?
Hi Pavel,
Are you thinking of adding parts with the pcb's like a mini kit?
Or keep it simple, bare boards only?
I wouldn't need any parts, have enough already
.
Are you thinking of adding parts with the pcb's like a mini kit?
Or keep it simple, bare boards only?
I wouldn't need any parts, have enough already
.
As of now, I am thinking of sending PCB’s only. Maybe JFETs, later, I am thinking about DigiKey source. But, it would be expensive, then. You know, I stepped in the river once, 15 years ago. It takes enormous amount of time and I am 15 years older now, aged 70, not having that much energy and willingness of such effort.
On the other hand, lot of data is collected and my measuring system background is largely improved, compared to that of 2010.
On the other hand, lot of data is collected and my measuring system background is largely improved, compared to that of 2010.
Yes, I agree.
Putting parts together with boards and shipping to all corners of the world is an enormous task.
I say keep it as simple as possible for you and let builders in the wild put the time and effort into sourcing the BOM parts. Gathering your own parts gets you more familiarized with the project at hand. 😉
Putting parts together with boards and shipping to all corners of the world is an enormous task.
I say keep it as simple as possible for you and let builders in the wild put the time and effort into sourcing the BOM parts. Gathering your own parts gets you more familiarized with the project at hand. 😉
