Search found 6335 matches

by Ray P
Wed Feb 21, 2024 9:22 pm
Forum: Everyones Projects
Topic: Pass Sony VFET Project
Replies: 21
Views: 4358

Re: Pass Sony VFET Project

simon wrote: Wed Feb 21, 2024 7:48 pm Very interesting Ray. Do you send them a 3d dwg or dxf? I'll have to have a look on their website fir pricing.
I sent them a .step file, Simon. I used Fusion 360 to generate it, available for free for personal use.
by Ray P
Wed Feb 21, 2024 9:20 pm
Forum: Everyones Projects
Topic: Pass Sony VFET Project
Replies: 21
Views: 4358

Re: Pass Sony VFET Project

pre65 wrote: Wed Feb 21, 2024 7:26 pm Nice job Ray.

If I was really nit-picking I'd suggest countersinking the front panel screw holes so the fixing head was flush.
Taste Phil, the bolts were a deliberate choice.
by Ray P
Wed Feb 21, 2024 6:49 pm
Forum: Everyones Projects
Topic: Pass Sony VFET Project
Replies: 21
Views: 4358

Re: Pass Sony VFET Project

Just about finished the project today with the addition of a front panel (3D printed by JLC).

Image

Image
by Ray P
Sun Feb 18, 2024 4:50 pm
Forum: Everyones Projects
Topic: Borbely EB-1198/116 Preamp
Replies: 17
Views: 2110

Borbely EB-1198/116 Preamp

I think I picked up the bargain of the year! I saw a pre-amp listed on DIY Audio - the guy said it was an Erno Borbely design but didn't know which one. I studied the photographs and had a hunch that it was the 1198/116 All-FET design so, as it was listed for a very good price, I took the plunge. It...
by Ray P
Sun Feb 18, 2024 11:57 am
Forum: Everyones Projects
Topic: OK…so I’m on wi’ summat
Replies: 195
Views: 48042

Re: OK…so I’m on wi’ summat

Cressy Snr wrote: Sun Feb 18, 2024 10:04 am Now then! After squinting through the top plate mesh, with the use of a strong light and magnifying glass, I can confirm that the filter op-amps are indeed OPA1678s. :)
That's good then. Maybe just try the simplified filter board some time down the line...
by Ray P
Sun Feb 18, 2024 8:25 am
Forum: Everyones Projects
Topic: OK…so I’m on wi’ summat
Replies: 195
Views: 48042

Re: OK…so I’m on wi’ summat

Yeah, it'll be good to confirms Steve, my grey matter isn't so effective nowadays.
by Ray P
Sun Feb 18, 2024 6:49 am
Forum: News
Topic: Alexei Navalny RIP
Replies: 1
Views: 1165

Re: Alexei Navalny RIP

Surprised it too Putin so long but perhaps that's part of the torture...
by Ray P
Sun Feb 18, 2024 6:41 am
Forum: Everyones Projects
Topic: OK…so I’m on wi’ summat
Replies: 195
Views: 48042

Re: OK…so I’m on wi’ summat

Good result Steve. I know I'm conflating two of your threads here but just to remind that, IIRC, the filter stage of your RTZ has NE5532 op-amps and it would be good to get you a listen to one equipped with the OPAs, which we've all found to be an improvement https://www.audio-talk.co.uk/phpBB3/view...
by Ray P
Fri Feb 16, 2024 6:48 am
Forum: Everyones Projects
Topic: More RTZ DAC Fun.
Replies: 18
Views: 3000

Re: More RTZ DAC Fun.

The 'trim' is a nice touch, Steve.
by Ray P
Wed Feb 14, 2024 7:01 pm
Forum: Everyones Projects
Topic: RTZ SDM (DSD) DAC
Replies: 101
Views: 40178

Re: RTZ SDM (DSD) DAC

Leon wrote: Wed Feb 14, 2024 9:21 am Look forward to seeing how you get on with the valve output stage , did you ever try the discrete version of the CD enhancer ? I tried it with a Pioneer PDS904 quite a few years ago
Not tried the discrete CD Enhancer but will have a look.
by Ray P
Wed Feb 14, 2024 6:59 pm
Forum: Everyones Projects
Topic: RTZ SDM (DSD) DAC
Replies: 101
Views: 40178

Re: RTZ SDM (DSD) DAC

I've removed the NE5532 and fitted the OPA1678's (Thanks Tony) Got to say guys just my opinion but I found the OPA's are noticeably better , its opened the sound up and sounds less compressed , better attack . Its obviously fiddly changing smd parts so caution if wanting to try it . Next thing to t...
by Ray P
Wed Feb 14, 2024 6:39 pm
Forum: Everyones Projects
Topic: RTZ SDM (DSD) DAC
Replies: 101
Views: 40178

Re: RTZ SDM (DSD) DAC

I think that most evenings Ray Seems to be! 🙄 Love the look of that Beagelbone black , I need to look into that tbh I was expecting a huge PC was needed to run HQ player . You do need a powerful PC for HQ Player, mine is getting a bit old now but still benchmarks at something like 11000. The Beagle...
by Ray P
Wed Feb 14, 2024 6:33 pm
Forum: Everyones Projects
Topic: Fg810 - A Working Title
Replies: 44
Views: 22002

Re: Fg810 - A Working Title

Next!
by Ray P
Tue Feb 13, 2024 9:53 pm
Forum: Everyones Projects
Topic: RTZ SDM (DSD) DAC
Replies: 101
Views: 40178

Re: RTZ SDM (DSD) DAC

I don't know where this evening has gone! I prefer the JLSounds USB board to the Amanero but it would complicate matters with connections to the PCM2DSD module. I made some interface boards to hook a JLSounds board to a ValveDAC that I bult for a friend (Marcel's designs use the Amanero pattern head...
by Ray P
Tue Feb 13, 2024 5:41 pm
Forum: Everyones Projects
Topic: RTZ SDM (DSD) DAC
Replies: 101
Views: 40178

Re: RTZ SDM (DSD) DAC

Leon wrote: Tue Feb 13, 2024 12:37 pm ...could we use this as a discussion thread for this dac or maybe start something separate ?
Just in from work so I'll read the posts properly later but for now, sure, it's as good a place as any.

Ray