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Post by porkyman on Dec 27, 2014 15:34:40 GMT -6
seems they both use the max kircher dual 6028/408a design. the d-47 however comes with a psu board, but the mk47 kit from studio939 comes complete minus tubes, psu and capsule. not sure how you would complete the mk47 build without psu. they're not clear about that.
the only real difference i see here is transformer options. does anyone have any experience with either of these?
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Post by winetree on Dec 27, 2014 16:20:44 GMT -6
You need to buy the Chinese power supply and do the universal P.S. mod. That should work and save a lot of time and money.
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Post by porkyman on Dec 30, 2014 0:38:54 GMT -6
You need to buy the Chinese power supply and do the universal P.S. mod. That should work and save a lot of time and money. thanks. do you know the name of the Chinese brand. ive been googling power supply dit u47 and not coming up with anything |
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Post by Deleted on Dec 30, 2014 1:53:07 GMT -6
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Post by porkyman on Dec 30, 2014 13:50:35 GMT -6
I emailed chunger about that unit because it says its only for the c12, but he never responded so i ordered just the mk47 kit. Thanks. |
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Post by category5 on Dec 30, 2014 15:54:01 GMT -6
That one really isn't up to the demands of the MK47 after modding. The transformer is a little small for such high current demand. Chunger has a dedicated u47 PSU planned but it's been slow coming. For now the best bet is a scratch build based on Zayance's board or ptp. |
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Post by kcatthedog on Dec 30, 2014 18:03:46 GMT -6
and Tony C is showing his mku-47 psu build on this site right now, zayance has his green pcb for having pattern switch on board or the black to go with mk-u47 with pattern switch on mike. the bom specs both toroids; pick your vdc poison  |
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Post by category5 on Dec 30, 2014 20:18:40 GMT -6
and Tony C is showing his mku-47 psu build on this site right now, zayance has his green pcb for having pattern switch on board or the black to go with mk-u47 with pattern switch on mike. the bom specs both toroids; pick your vdc poison Tony's build is looking sweet for sure. I like the raised PCB config too since it gets the resistors up closer to the vents on Dan's PSU case where they stand a chance of dumping some of that heat. They get insanely hot. Chunger and Matador's version differs in that it uses individually sinked resistors and has accomodation for a built in volt meter (and external trim). This isn't for folks with OCD though. Output voltage varies directly with input voltage and therefore tends to drift during use. It will rarely read exactly 105V. i think the meter is what's holding up the project but last I heard they were switching to a different toroid with an extra 6v secondary dedicated to the meter. Hopefully it will be out soon because there aren't many options for passive U47 supplies right now and Zayance's board is in limited supply. |
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Post by tonycamphd on Dec 31, 2014 12:12:54 GMT -6
category5 funny you should say that, I know how hot these bad boys get, and we all know heat kills electronics, i was debating drilling a couple holes in random available spots on the PSU case floor, this way it can draw cool air from the floor and evacuate easier, i did this on my MK47 amo case, it works very well for keeping things chill, what do you think about this idea? T 
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Post by category5 on Dec 31, 2014 13:56:42 GMT -6
category5 funny you should say that, I know how hot these bad boys get, and we all know heat kills electronics, i was debating drilling a couple holes in random available spots on the PSU case floor, this way it can draw cool air from the floor and evacuate easier, i did this on my MK47 amo case, it works very well for keeping things chill, what do you think about this idea? T View Attachment Well, I'm positive it won't hurt anything unless something foreign finds it's way through one of the vents. Those resistors can take double the heat they'll generate though and they don't get hot enough to melt solder so either way I'm sure it's okay. As you said heat is usually the enemy of electronics though. The original PSU had no cooling other than plain convection so maybe it plays into performance somehow. Never tested it. |
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Post by kcatthedog on Dec 31, 2014 14:15:37 GMT -6
cat5 and I talked about the raised resisters and we noted that they are naturally off to one side of the enclosure, so speculated that given heat dissipation( it radiates) and then hot air rises, perhaps there will be a natural vacuum created on the short side as the hot air exits/escapes there first ,creating a natural draw and vacuum bringing in air on the far side that then flows across the resisters towards the near side ??
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Post by tonycamphd on Dec 31, 2014 15:04:21 GMT -6
there is no doubt about the flow, as a victim of ocd, i tested the airflow coming from the side vents(with my hand) with the bottom holes taped off and open, there was clearly much better flow from wide open bottom vents...so? We all know hot air rises, cold air falls to the floor, it makes perfect sense in my pea sized nugget to do this, doesn't mean i'm right though lol 8)
I think i'll leave it be for now, if when i break it in i feel it could benefit from being cooler, it's no big deal to drill a couple holes to let her breathe a bit better.
thanx for the opinions fella's
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Post by porkyman on Jan 3, 2015 16:55:08 GMT -6
how did you guys order your thirsch blue line capsule? theres no ordering info on their site. i sent my request for one via email to them weeks ago and still havent heard back.
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Post by yotonic on Jan 3, 2015 17:11:34 GMT -6
I use a Hamptone power supply with my Mk47. It's excellent.
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Post by Deleted on Jan 4, 2015 16:04:06 GMT -6
porkyman, please try emailing them again. AFAIK that's the official ways to order now. They got a kind of shop with links in the past, but not anymore. Maybe they were a bit swamped with orders for the Max Kircher kits at the moment, or beeing on christmas holidays maybe? Best regards, Martin
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Post by Johnkenn on Jan 4, 2015 16:28:41 GMT -6
Yeah - I emailed and got a response back. Ended up getting one through @cat5, but they eventually emailed me back. I'd try again.
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Post by porkyman on Jan 7, 2015 2:13:50 GMT -6
so i emailed them a couple more times and still didnt get a reply.... turned out they were being sent to my spam folder. they must be so annoyed with me right now. such an IDIOT!!!
anyways. does anyone have the Alctron GT-2B body with blueline? if so what capsule version/holder did you use. chunger said his blueline didnt fit in his.
thanks
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Post by kidvybes on Jan 7, 2015 9:44:11 GMT -6
anyways. does anyone have the Alctron GT-2B body with blueline? if so what capsule version/holder did you use. chunger said his blueline didnt fit in his. thanks ...tonycamphd (who is building John Kennedy's MK-U47) has the Blueline in his MK-47 built in the GT-2B body...you can reach out to him for details... |
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Post by svart on Jan 7, 2015 9:51:06 GMT -6
how did you guys order your thirsch blue line capsule? theres no ordering info on their site. i sent my request for one via email to them weeks ago and still havent heard back. Took about a week for them to reply to my email at first. Another few days to reply to my email sending them my shipping address. It's certainly not an ideal setup for ordering, but it worked out for me. I'd try again. EDIT: OOOPS, didn't read through the thread all the way! Glad you figured that out. They are excellent capsules. |
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Post by svart on Jan 7, 2015 9:53:52 GMT -6
RE: Heat..
My power supply for the U47 doesn't get that hot. I used a different transformer with a closer voltage to the output voltage so less is wasted in heat. However, the mic itself gets pretty damn warm over a few hours of use. It's a bit uncomfortable in the hand if you don't let it cool down some.
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Post by tonycamphd on Jan 7, 2015 15:35:40 GMT -6
RE: Heat.. My power supply for the U47 doesn't get that hot. I used a different transformer with a closer voltage to the output voltage so less is wasted in heat. However, the mic itself gets pretty damn warm over a few hours of use. It's a bit uncomfortable in the hand if you don't let it cool down some. how you liking the sound C? |
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Post by kcatthedog on Jan 7, 2015 15:41:03 GMT -6
you just go to the bottom of the Thiersch product page: www.thiersch-mic.de/en/estm_produkte.html"All products may be ordered by email or contact form. Price apiece + 19% VAT for EU customers! All prices + postage." the email and the form are hotlinked there. |
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Post by svart on Jan 7, 2015 15:51:39 GMT -6
you just go to the bottom of the Thiersch product page: www.thiersch-mic.de/en/estm_produkte.html"All products may be ordered by email or contact form. Price apiece + 19% VAT for EU customers! All prices + postage." the email and the form are hotlinked there. And be forewarned, they use a DHL expedited service. It's like 60$ for shipping. They don't tell you this until your order is complete and ready to ship. |
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Post by svart on Jan 7, 2015 15:52:40 GMT -6
RE: Heat.. My power supply for the U47 doesn't get that hot. I used a different transformer with a closer voltage to the output voltage so less is wasted in heat. However, the mic itself gets pretty damn warm over a few hours of use. It's a bit uncomfortable in the hand if you don't let it cool down some. how you liking the sound C? I've really only used it on a bass cabinet so far. I'm kinda in a lull in recording right now and haven't tried it on vocals yet. Might try it on drums over this coming weekend. Seems pretty nice on bass though. |
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Post by Deleted on Jan 7, 2015 16:35:47 GMT -6
The heat in the mic is by design. The U47 transforms more than 3W into heat originally. This is due to the demand of running from a single 105 Volt supply. Some say, it is more than sub-optimal on electronical level, but on the other hand, as long as you don't use it upside down, the upcoming heat seems to keep condensed water from the singers oath away from the capsule...
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