arnaud Posted June 6, 2013 Report Posted June 6, 2013 Birgir, does this mean this is a build an idiot like me could take a shot at while not taking too many chances with one's life?
morphsci Posted June 6, 2013 Report Posted June 6, 2013 Birgir, does this mean this is a build an idiot like me could take a shot at while not taking too many chances with one's life? Or better yet, could Hennyo build it? 1
arnaud Posted June 6, 2013 Report Posted June 6, 2013 Hennyo's been asking me to buy parts from Japan for him through pm. I said I'd help (when time permits) if it was benefiting all the builders / e.g. group buy centralised by a reputable member / through public post in the forum (not pm). Haven't heard a word since!
spritzer Posted June 7, 2013 Author Report Posted June 7, 2013 Birgir, does this mean this is a build an idiot like me could take a shot at while not taking too many chances with one's life? This is about as simple as it can get but care has to be taken when soldering in the tubes. There are no cheap sockets available for sub-mini's so they have to be soldered in. I didn't care enough to make a new footprint for them so this is a TO-5 base which is quite small. Should be fine with non-Hennyo solder skills.
arnaud Posted June 7, 2013 Report Posted June 7, 2013 I am tempted! Have done soldering of populated integrated amps boards while I was doing an intership at an audio manufacturer so I guess I am not a total noob. But I can probably do much worse than hennyo nevertheless Any example chef d'oeuvre of his to take inspiration?
spritzer Posted June 7, 2013 Author Report Posted June 7, 2013 This is a good example of how you should not solder a diode in a +/-500V supply.
GeorgeP Posted June 7, 2013 Report Posted June 7, 2013 What do you mean - extra solder at no additional charge! Plus it must conduct even better - lets more bass through.
jwzhan Posted June 7, 2013 Report Posted June 7, 2013 lol that's possibly the worst soldering job I've ever seen. How do you even get that much solder through?
spritzer Posted June 7, 2013 Author Report Posted June 7, 2013 There has to be some ancient order of soldering monks that teach this shit as I just don't know how to do it this badly. Needless to say, that PCB went up in flames even after I tried to fix it...
kevin gilmore Posted June 7, 2013 Report Posted June 7, 2013 (edited) There are really GOOD monks (like andy), then there are a few bad ones. Like the child molesting creep that bought the property behind me that's next to a kindercare. Luckily (with a warning) enough neighbors got together to stop him from building a "visitor center" where he could spy on and prey on the kids. He now owns 4 such properties in the 30 mile area, all of which are next to kindercare, or kindercare like facilities, none of which he is able to build on. Seems like a waste of about $800k. Seriously, how hennyo was able to solder like that, I have yet to figure out. round balls of eutectic solder thru the wrong side of the board. On the heatsinks balls stuck to the pins but not the board. That definitely takes talent. here is the place in japan that has the transistors, trouble is they won't ship overseas, so someone in japan has to be the go between http://www.maroon.dti.ne.jp/satodenki/fet.html I could use 25 pieces each of 2sj79 and 2sk216 just to make sure plus 50 pieces 2sk170/2sj74 Edited June 7, 2013 by kevin gilmore
spritzer Posted June 7, 2013 Author Report Posted June 7, 2013 You do know that I was going order for you... If that's all you want then I'll send it in right away.
kevin gilmore Posted June 7, 2013 Report Posted June 7, 2013 that's the minimum I want. depending on how many they really have.
Knuckledragger Posted June 8, 2013 Report Posted June 8, 2013 [spoiler alert: that thing in Kevin's user pic is not a giant ball of solder]
Voltron Posted June 8, 2013 Report Posted June 8, 2013 hey, keep monks out of it (: I'm sorry to say it Andy, but I've actually seen Birgir drink monks' blood!
kevin gilmore Posted June 8, 2013 Report Posted June 8, 2013 well every metal is just a ball of solder at some temperature. that one would be 110 tons at a temperature of about 1500C
jwzhan Posted June 8, 2013 Report Posted June 8, 2013 deadlylover was planning on some group buy from satodenki, but don't know when that's actually going to take place... I surely want some of those 1968s and 79/216s I really do wonder how to get that much solder to seep through the hole.... I mean... sometimes I try to have solder seep through a little to the other side but it really takes quite a bit from the iron...
blubliss Posted June 8, 2013 Report Posted June 8, 2013 I'm sorry to say it Andy, but I've actually seen Birgir drink monks' blood! ruh roh
spritzer Posted June 8, 2013 Author Report Posted June 8, 2013 Andy is in trouble if I'm ever in So.Cal...
eggil Posted June 8, 2013 Report Posted June 8, 2013 This is a good example of how you should not solder a diode in a +/-500V supply. It looks like if they stepped on poop.
kevin gilmore Posted June 8, 2013 Report Posted June 8, 2013 next up a singlepower squarewave and squarewave xl for the masses. with fixes. this is going to be a very sweet and uber cheap amp and as Jacob can testify, with the right power supply a really great sounding item for high impedance headphones. my version will have a servo, because the 1000uf blackgates are clearly no longer available, and take up way too much space. http://gilmore.chem.northwestern.edu/squarewaveproduction.pdf
spritzer Posted June 26, 2013 Author Report Posted June 26, 2013 After a week of battling customs, here we are: Looks kinda cute... That's the PSU above it and it needs a 12V/2A brick to power it all. Just need to figure out the loading for the output tubes but I'm leaning towards 30K for the Anode and 280R for the cathode.
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