CryptiK Posted March 13, 2014 Posted March 13, 2014 Just got the camera back from Canon. First pic burson conductor + timekeeper_sml by imageKraft, on Flickr 3
kcdusk Posted March 13, 2014 Posted March 13, 2014 Just got the camera back from Canon. First pic burson conductor + timekeeper_sml by imageKraft, on Flickr Great photo. Even if its a Canon. 1
kunalraiker Posted March 13, 2014 Posted March 13, 2014 Just got the camera back from Canon. First pic burson conductor + timekeeper_sml by imageKraft, on Flickr Where are the headphones.
CryptiK Posted March 14, 2014 Posted March 14, 2014 Right above!! Might take a couple shots of them later. Just thought the organic lines of the braided cable against the geometric strength of the chassis was a nice contrast. That and I was mainly testing for bright pixels (that's the warranty work that was being performed).
Hergest Posted March 15, 2014 Posted March 15, 2014 Just got the camera back from Canon. First pic burson conductor + timekeeper_sml by imageKraft, on Flickr Excellent photo.
CryptiK Posted March 16, 2014 Posted March 16, 2014 (edited) Headphones pics as promised. Light is very bad today so this is the best I could manage. HP_3_sml by imageKraft, on Flickr HP_2_sml by imageKraft, on Flickr Edited March 16, 2014 by CryptiK 3
Equaliser Posted March 16, 2014 Posted March 16, 2014 Nice gear and nice photography sets. What camera and what settings? 2
CryptiK Posted March 16, 2014 Posted March 16, 2014 Me? If so thanks. Camera is a Canon 5D Mk II and lens is 24-105 F4L. For those shots focal length was around 90-105mm, F4-F6.3 depending on the shot and ISO800 due to poor light (overcast). 1
CryptiK Posted March 18, 2014 Posted March 18, 2014 That looks great. Heard they sound pretty good too.
gavtron Posted March 18, 2014 Posted March 18, 2014 Dont have, but want. I know a guy who has had that amp on order for around 1 year now..! Not easy to come by unless purchased 2nd hand.
Guest kab Posted March 18, 2014 Posted March 18, 2014 I know a guy who has had that amp on order for around 1 year now..! Not easy to come by unless purchased 2nd hand. http://www.headamp.com/electrostat_amps/bhse/index.htm Is this where he ordered it from?.
gavtron Posted March 19, 2014 Posted March 19, 2014 http://www.headamp.com/electrostat_amps/bhse/index.htm Is this where he ordered it from?. Ordered through A2A who are an authorised retailer of headamp. There are backlogs on most of the head amp gear, gsx, blue Hawaii etc..
david chau Posted March 20, 2014 Posted March 20, 2014 Well mine has changed slightly and im looking at some equipment upgrades too I noticed you are in SA and have a Chinese audiophile recording - just curious, where do you source your Chinese audiophile recordings?
mwhouston Posted March 20, 2014 Posted March 20, 2014 (edited) Here is a little something I knocked up one afternoon a month ago. Sophia Mesh Plate 274B rec. tube. and Tesla NOS gold pin ECC88 and Wing C NOS 6SN7. Seven stage PS filtration. Direct coupled from drIver to power tube. One cap in audio path. 440uV RMS of noise. Edited March 20, 2014 by mwhouston 1
mwhouston Posted March 20, 2014 Posted March 20, 2014 (edited) Here is a SS headphone amp\preamp on a 1U 19" tack enclosure. Two inputs with both 6.5" jack and RCAs. Dual construction throughout with only one 2N3055 doing the grunt. I needed 100uf for output cap so 10 X 10uf polies X 2 channels should do it. Edited March 20, 2014 by mwhouston 2
mwhouston Posted March 20, 2014 Posted March 20, 2014 (edited) Here are a couple of portable triode headphone amps. They use the sub-miniature JAN6418 and an OPA2134 chip as a unity gain buffer\driver. This is uses the Oatley K272C which I helped develop. This one runs on 18V with separate filament batteries (2 X AA) and has two batty health LEDs up front. I use switched jacks so both jacks must be occupied and the switch at the back on before current will flow. This means it is harder to leave on while not in use. Great sound but the tubes are microphonic. One I built in an attractive (if not a little industrial) re-sealable heavy duty it can. Pop the lid and plug in. The PCB is mounted on a 3ply base witch I sanded fine the lacquered. Edited March 20, 2014 by mwhouston 1
mwhouston Posted March 22, 2014 Posted March 22, 2014 (edited) The first SS headphone amp is called "Woody Pro". The Woody series started with a smaller build as in the images here. I few guys bought this model and used them as preamps. It's an emitter follower design and called Woody because the single transistor is bolted to a slab of Murboo. In Woody Pro there is a small heat sink between the 2N3055 and the Murboo. Here is the first Woody I ever built. It uses an external 30V 5A SMPS and runs dead quiet. Drives my 33 ohm AT 700 Airs with ease. Alps pot and some big 10uF ploies in the audio path. I have included the watch so you get an idea of size. Edited March 22, 2014 by mwhouston 1
mwhouston Posted March 22, 2014 Posted March 22, 2014 I use to run Woody on a SMPS until I was measuring it for noise. There are massive regular spikes at 1.25Kh generated in a both channels. That's it no more SMPS. Fortunately I had develop external an PS for a number of BoZs I made. These plugged straight in with plenty of voltage and current to spare. Noise measured was 1.2mV one channel and 0.9mV RMS the other. Yes you are right, dead quiet. 1
Equaliser Posted March 23, 2014 Posted March 23, 2014 Need bigger HD MOAR quality pics houston. Gorgeous build as always. 1
mwhouston Posted March 23, 2014 Posted March 23, 2014 Need bigger HD MOAR quality pics houston. Gorgeous build as always. Thanks for the nice comment. Yes I'm a little lazy with high rez snaps. The camera will do 10MP but I trim it down later. MOAR????
migasson Posted April 13, 2014 Posted April 13, 2014 And thats it for me for hi-fi or headphone setups for about the next two years! Bye for now!
kunalraiker Posted April 13, 2014 Posted April 13, 2014 And thats it for me for hi-fi or headphone setups for about the next two years! Bye for now! What is it ?
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