-
Posts
3,458 -
Joined
-
Last visited
-
Days Won
1
Content Type
Profiles
Store
Forums
Gallery
Videos Directory
Everything posted by hochopeper
-
@acg have you thought about trying your hand at a marble machine after you ‘finish’ this project
-
All you folks are sounding like auditors. This project is 100% “On time, on budget.” “Ah, but a man’s reach should always exceed his grasp” Browning
-
yep that's the one - the challenging parts were getting the co-prime dimension requirements etc simply change an input argument ... my script at the moment assumes a single panel design so would be a little bit of rearranging to split it over a few sheets.
-
Dan and @almikel I got that external drive caddy and found the files - should be easy enough to run again. Need to know size of panels and also some specifics about what info is needed to operate the plasma cutter. At the moment it can spit out a list of hole centres. The other area of tweaking is in the hole diameter vs hole spacing (effectively the ratio of reflective surface vs open). I'd love to hear more about the First Watt amps you're building too - I'm hoping to fire up a few electronics projects that have been on the back burner - hopefully have some actual progress to show on them in the coming months Chris
-
2007 Silicon Chip Signature series speakers
hochopeper replied to Addicted to music's topic in DIY Audio Projects
I haven’t built / heard these speakers but the author of the article has the same name as what comes up on the contact page of that website. Spidey senses suggest they’re the same person ... ? -
Yeah no interest from me at the moment. I think I need to buy a usb caddy for the old nvme drive that code was sitting on - I was planning on doing that soon. Unless maybe it is sitting in an old email to @almikel or @acg maybe? If you guys proceed then I should be able to dig the code out I guess. I'm a bit hesitant handing the code out to folks I don't know (there have been a few PMs over time) because I'd rather support DIYers than provide that work to someone starting a business - I'm not that smart and it took me a couple of evenings and a copy of the right book and a few cans of beer. I have no idea what info a plasma cutter takes as an input .... my code was calculating the hole centres on a sheet. That would be enough for someone suitably motivated to use some cad software and probably scriptable to lay out in the right cad software and export whatever it is that's needed by the plasma cutter.
-
TOOL - Fear Inoculum (30 Aug 2019 release)
hochopeper replied to manchu's topic in Music, Musicians and Bands
Is this really a surprise to anyone that has listened to Tool before? The lyrics to Pneuma feel like an extension/complement to Reflections to me. I'm loving the album. -
Wouldn’t even need to cut the bottom out - drain holes provide the multiple entry points!
-
Are these suggestions arbitrary or is there some reasoning for the choices here? Would be good if you could outline the reasoning behind the suggestions.
-
Its the first project on my RealSoonNow list. Hopefully over the next month or so I'll make some progress on it. I have 2 PCBs for Bruno's design so may try some variations of the attenuator I'll be using it at my desk setup to switch between balanced phono and DAC.
-
I don’t seem to be able to edit the hyperlink on mobile so I’ll just put the link here - https://www.hypex.nl/img/upload/doc/an_wp/WP_The_G_word.pdf edit - fixed the link in earlier post too
-
-
I don't think 6 way passive line level crossover in parallel is really 'usual' Anthony! ? Basically the usual case doesn't have a complex impedance to drive so would be expected to be flat. If the complex load is a problem then you'd need to separately buffer each of those? I think we're on the same page but I'll go through how I think about it for fun ... My philosophy is the same as racing a car quickly through a corner. Never hit the accelerator before you're confident you won't be baking off, or worse, braking again. Correspondingly I see no value in amplifying a signal that will need attenuation before subsequent amplification. In the case of say a phono preamp, have the gain of the phono and the power amp such that almost no attenuation required for maximum expected listening levels. Then put the volume control in to allow you to also listen at quieter levels for practical and domestic reasons. I've also recently found myself in need of an analogue pre-amp. The design I like is buried (page 10 on in that pdf) in an article on balanced audio design is by Bruno Putzeys with Hans Polak's extra board to replace the pot. Bruno's commentary on his design philosophy around the pre-amp design decisions may be insightful too. Ha! Just skimming that Bruno Putzeys article and found this on page 10 - relating back to input impedance: So if your load is now inductive from the crossover parts between the preamp and power amps then that's probably quite unusual. Hopefully you're at least as confused as before I posted Anthony! Chris
-
When I daydream (often!) about getting a new turntable I keep coming back to the Audio-Technica LP5. Direct drive but without the DJ features/bling and without the need to modify to bypass the built in phono that comes on some of the cheaper models of the super OEM decks. When I was just looking I noticed storedj have the stanton with straight tonearm on sale for half price - https://www.storedj.com.au/stanton-str8150m2-direct-drive-professional-super-high-torque-turntable-straight-tonearm - which would be tempting if I could get over the number of times they've written the brand name on the thing.
-
Spotting a fake review
hochopeper replied to Andythiing's topic in General Hi-Fi & Beginners Discussion
Fake post. Too positive. ? I got 4/5 -
Tool New Album! smoke is on the horizon!
hochopeper replied to hyper's topic in Music, Musicians and Bands
I haven't got much of a clue about reading the waveforms but here is Sober from HD Tracks (top) vs the rip of my CD (bottom). I'm more interested in potentially different mastering than redbook vs high res. We've got a newborn (3 week old) in the house and I left my good headphones at work so I haven't had a chance to have a proper listen yet. -
I did get it. Unfortunately I really haven't had much time for diy electronics this year so I'm not best placed to give opinion on that. The eevblog forum has threads for people with issues with it and discussion on the meter (see the stickies in this subforum - https://www.eevblog.com/forum/testgear/) I do like that they are actively fixing/improving things and new firmware being released (although that could be seen both ways - depending on your use case)
-
You've been saying that for a while Dave, I have only ever made it to the annual event at the Jones residence for an afternoon a few years ago - it's worth it! ?
-
Advice on building a quality Class A/B amp.
hochopeper replied to Gordon Macfarlane's topic in DIY Audio Projects
I've got a Aussie Amps 6ch amp (when he did 3ch of the nxv100 on one PCB) powered by a coldamps SMPS, works well. I've got another diy amp (called 'the wire class ab' with lme49830 and lateral MOSFETs) that has regulated SMPS powering each channel. The SMPS risk is that when one fails, it's harder to repair than a linear power supply. I've had one fail and happened to have a guy local selling some that he had bought from the same group buy. It's far from ideal as now the vendor is out of business but I have a spare. If I was building an amp to the specs you're after I'd look at the modulus 686 https://www.neurochrome.com/product/modulus-686-2/ with either their meanwell controll boards and meanwell smps or a connex SMPS. I'd lean toward meanwell for the simple fact that I can be more confident of finding replacements when stuff goes wrong. The cost of that combo isn't cheap though. Honestly diy high power class ab is always going to be difficult to do well for cheap. At least with the neurochrome stuff I can see measurements and know that I can verify the build performance with some soundcard measurements of my own, which to me would be worth the $$ although I know some in diy circles struggle with the idea to pay more than PCB manufacturing costs for a PCB. Chris -
This post cannot be displayed because it is in a forum which requires at least 10 posts to view.
-
Passed away in the last day or so . Many tributes over at diyAudio - https://www.diyaudio.com/forums/in-memoriam/327275-rip-siegfried-linkwitz.html RIP Siegfried Linkwitz Some interesting talks from him at Burning Amp and other events - https://www.youtube.com/results?search_query=seigfried+linkwitz
-
Got a link Dave?
-
Awesome! Our not quite 3yo daughter is all about Midnight Oil - Short Memory. Every time we go for a drive we simply must listen to it or we've got a mutiny on our hands.
-
Cool stuff Anthony! I think I mentioned this article to you before when discussing the topology for gain structure around passive line level crossover. Now that you're going to go down the turntable road, a read of this article - http://www.diyaudio.com/forums/diyaudio-com-articles/163570-masters-noise-thoroughly-modern-tube-phono-preamp.html - would be worthwhile IMO. The solution might not be to everyone's tastes (he's open about that) but the theory discussed (especially using balanced connection for connection to the cartridge) would be worth at least a read for background. I've spent most of my spare time lately renovating a bathroom, so I haven't had a chance to look more closely, do you mention anywhere in this thread which phono stages you're building?