Search found 429 matches

by Thermionic Idler
Fri Feb 23, 2018 2:10 pm
Forum: Beginners
Topic: Floating signal grounds?
Replies: 13
Views: 1783

Floating signal grounds?

Hi, I'd like to put a question to the knowledgable if I may. The never ending Transcendent Beast OTL project is moving glacially forward and I've run into something which looks a bit odd to me. As it's a copyrighted design I can't post the schematic, but the circuit signal grounds all tie back to a ...
by Thermionic Idler
Wed Feb 21, 2018 6:18 pm
Forum: News
Topic: Maplin's in trouble ?
Replies: 12
Views: 1398

Re: Maplin's in trouble ?

Uh oh. I've got an outstanding click-and-collect order with them that's yet to be fulfilled.
by Thermionic Idler
Sat Feb 17, 2018 11:32 pm
Forum: Your Fave Artists
Topic: What Are You Listening To Right This Minute?
Replies: 2992
Views: 172711

Re: What Are You Listening To Right This Minute?

Tonight I cued up "Bert Kaempfert And His Orchestra: A Swingin' Safari" on Qobuz. This is such a fun LP and, as has been mentioned previously on this forum, the production quality is absolutely first rate. So much so that I realised that I'd had the Mets not quite toed in enough since I plonked them...
by Thermionic Idler
Tue Feb 13, 2018 11:24 pm
Forum: Everyones Projects
Topic: 2A3 "Pink SET" Amp Rebuild.
Replies: 131
Views: 10029

Re: 2A3 "Pink SET" Amp Rebuild.

It does show how much hum and crud will affect the perceived sounds. I had experience of this the other day actually. I'd made up some XLR cables to connect the balanced outputs of the Whest phono stage and newly acquired CA Dacmagic to the two balanced inputs I'd provided for myself on the recentl...
by Thermionic Idler
Mon Feb 05, 2018 11:41 pm
Forum: Computer Audio
Topic: Anyone had experience with the Google Chromecast Audio?
Replies: 13
Views: 2266

Re: Anyone had experience with the Google Chromecast Audio?

The DACMagic arrived today, this one came with an aftermarket power supply which I assume to be a linear one given the size and weight of the case it's in. I don't know how much of a contribution the power supply is making, but it's quite a significant step up from both the Musical Fidelity V-DAC Mk...
by Thermionic Idler
Fri Feb 02, 2018 9:07 am
Forum: Everyones Projects
Topic: Signal Relays
Replies: 12
Views: 1380

Re: Signal Relays

The AMB preamp I built recently uses telecoms grade Panasonic AGN2104H miniature latching DPDT relays for input switching, and in the ladder attenuator. These are latching relays and are very compact, possibly too compact if you're hard-wiring though.
by Thermionic Idler
Thu Feb 01, 2018 11:19 pm
Forum: Computer Audio
Topic: Anyone had experience with the Google Chromecast Audio?
Replies: 13
Views: 2266

Re: Anyone had experience with the Google Chromecast Audio?

It's a nice little device isn't it? I've had way-worse sounding CD players.

I'd really recommend giving Qobuz a go - you get 30 free days trial so can cancel if it's not for you, at no cost. The audio quality leaves Spotify in the dust.
by Thermionic Idler
Wed Jan 31, 2018 7:16 pm
Forum: Computer Audio
Topic: Anyone had experience with the Google Chromecast Audio?
Replies: 13
Views: 2266

Re: Anyone had experience with the Google Chromecast Audio?

It would be nice to stream my FLAC and WAV files from the PC upstairs to the main system via the Chromecast Audio, but I think I have to download SlimServer or similar and do a lot of faffing about to get it to happen. Have a look at Plex - I've got this installed on my iMac desktop in the office a...
by Thermionic Idler
Wed Jan 31, 2018 5:40 pm
Forum: Computer Audio
Topic: Anyone had experience with the Google Chromecast Audio?
Replies: 13
Views: 2266

Re: Anyone had experience with the Google Chromecast Audio?

Really interested to see how you get on with it. Is Qobuz plain vanilla "CD" FLAC or HD? It depends on the service you sign up for - there are four tiers. The bottom tier is the same price as Spotify and you get 320kbps MP3 for that. The next one up is the one I have, and that's 16-Bit 44.1 kHz FLA...
by Thermionic Idler
Wed Jan 31, 2018 11:54 am
Forum: Computer Audio
Topic: Anyone had experience with the Google Chromecast Audio?
Replies: 13
Views: 2266

Re: Anyone had experience with the Google Chromecast Audio?

Thanks for the input everyone! I decided to pull the trigger on one at the beginning of the week and it arrived today. Quite surprising how good the onboard DAC is for £30! I've currently got it streaming some lossless Mendelssohn choral music via Qobuz and I'm really impressed with it. It also work...
by Thermionic Idler
Sat Jan 27, 2018 11:58 am
Forum: Computer Audio
Topic: Anyone had experience with the Google Chromecast Audio?
Replies: 13
Views: 2266

Anyone had experience with the Google Chromecast Audio?

This looks like a stonking bargain - allegedly supports up to 24/96 files, will work with services like Qobuz, has an optical digital output that can be used with a decent DAC. To me this looks like quite an easy solution to a problem I've been trying to solve for some time - how to play back our ri...
by Thermionic Idler
Fri Jan 19, 2018 11:09 pm
Forum: Everyones Projects
Topic: Dieselpunk Preamp of Doom and the Beast with Two Backs
Replies: 200
Views: 22206

Re: Dieselpunk Preamp of Doom and the Beast with Two Backs

Hooray - I finally got a number for the bending allowance. Now I can generate the remaining two FPD files and get a final cost...
by Thermionic Idler
Sat Jan 13, 2018 12:13 am
Forum: Everyones Projects
Topic: Dieselpunk Preamp of Doom and the Beast with Two Backs
Replies: 200
Views: 22206

Re: Dieselpunk Preamp of Doom and the Beast with Two Backs

I was overcharged for that chassis, just interested in what the number was that put Dave in a darkened room. I think for now I'll just say "a lot". I think it'll be worth it though. These things are going to be in the living room next to each speaker - they have to look good as well as sound good.
by Thermionic Idler
Fri Jan 12, 2018 3:44 pm
Forum: Everyones Projects
Topic: Dieselpunk Preamp of Doom and the Beast with Two Backs
Replies: 200
Views: 22206

Re: Dieselpunk Preamp of Doom and the Beast with Two Backs

Construction of the two monoblocks will require the fabrication of 18(!) panels in total. I have finished building the FPD (front panel designer) files for the first 16, outstanding are the two cream coloured top panels (where the valve sockets and transformers etc sit) with the 5mm inner diameter b...
by Thermionic Idler
Tue Jan 09, 2018 10:36 pm
Forum: Beginners
Topic: Rectifier heater failure question
Replies: 2
Views: 510

Re: Rectifier heater failure question

Thanks Nick - I did wonder if it was down to some part of the heater filament touching another part internally, if it had broken. It all tested out fine this afternoon in any case.