Digi-Key or JLI, as already mentioned. Basically what you need is a good iron and practice, luckily these are fairly cheap. JLI may be able to hook you up...
18349
Jerry Lee Marcel
jerrylee.marcel
Jun 13, 2012 4:42 am
Having no signal on pins 5 & 6 is normal, as this stage is an inverter, but there should be some signal on pins 2 & 3. You have to check that you have signal...
18350
zephyrmic
Jun 13, 2012 5:27 am
I have used that method to get an earth pad, and it works well. For soldering, I drilled a 50 mm. long piece of small copper tube to accept the capsule as a...
18351
sethinspain
Jun 13, 2012 8:54 am
Hi Ricardo, One step ahead of you =). There are actually 2 priod posts regarding people having the exact same problem, reading the same voltages ect, even 1...
18352
sethinspain
Jun 13, 2012 8:58 am
Hey Jerry, Glad to see you chime in here, much appreciated. I have output on those on the previous 2 op amps in the signal chain. Is it possible to have no...
18353
Jerry Lee Marcel
jerrylee.marcel
Jun 13, 2012 9:36 am
Opamps are characterised by almost infinite gain (in practice >100dB) so they can have signal at theoutput with no visible signal on their inputs. ... ...
18354
sethinspain
Jun 13, 2012 10:32 am
Alright, so it's possible to have no visible signal on inputs 2 and 3 and still get output as is the case with my working board. What other piece of info do I...
18355
sethinspain
Jun 13, 2012 11:40 am
Hey Scott, I'll post them as soon as I get off work. Seth...
18356
sethinspain
Jun 13, 2012 12:02 pm
Scott asked for pictures so I made this one to illustrate a few questions I have about tracing the signal. I am not sure which are inputs and outputs on the...
18357
sethinspain
Jun 13, 2012 5:37 pm
Update, problem solved guys!!! It was a small break in the track right before the HPF switch! Thank goodness I had a probe made or else I would have never...
18358
zapnspark
Jun 13, 2012 8:12 pm
This has been an on going project for about the last 6 months. I finally bit the bullet and converted a 4 channel, mains powered DIY mic. preamp to battery...
18359
James McCanna
mccannalaw
Jun 13, 2012 9:37 pm
Hi, Looks pretty dang cool from here. I am curious about the PreUmp1. I am still on my mission to build a useful battery powered preamp for when I travel...
18360
Zachary Berry
zbam0
Jun 14, 2012 12:24 am
Hey guys.... Does anyone know what the cause of this intermittent noise would be? The mic is a Studio Project C1large diaphragm. I have determined that it is...
18361
andynicholl11
Jun 14, 2012 1:44 pm
Hi, I got my WM61As from Nanopunk on eBay: http://stores.ebay.co.uk/nanopunk?_trksid=p4340.l2563 They arrived within 2 days. They are available in packs of 2,...
18362
recordinghacks
Jun 16, 2012 5:01 pm
I recently published a new interview with David Royer, mostly about the development of the R-121 ribbon: ...
18363
phil.myears
Jun 17, 2012 8:03 am
Hello, I have just started to investigate the wonders of binaural recording. I decided that in order to better understand the workings of it all, it might be...
18364
mccannalaw
Jun 17, 2012 4:54 pm
Hi, I may have double-posted sorry. Here is my first microphone made of copper tube I bought at Home Depot. There is much finish work to be done but it is...
18365
Mike Rooke
picnet2
Jun 17, 2012 4:55 pm
... Yes, In the files section under ricardo_lee, find the folder "SimpleP48wm61" this shows how to wire up the wm61 to phantom power. This enables you to use...
18366
Scott Helmke
scott_helmke
Jun 17, 2012 8:18 pm
Looks cool, nice job! I can't quite see if there are slots in the sides for the cardioid pattern, though. -Scott ... -- ... And you'll visualize not taking any...
18367
trumpetplayers
Jun 18, 2012 5:20 am
So I'm wiring up the head amp now on a royer mod mxl 2003. On the schematic (http://recordinghacks.com/articles/one-tube-microphone-from-berlin/) it shows two...
18368
rick chinn
uneeda_audio
Jun 18, 2012 6:33 pm
Hi Ben, your writing is not at all clear. I guess that's to be expected from a trumpet player. Trying to read between your lines: the numbers near the tube...
18369
sethinspain
Jun 19, 2012 10:32 am
Hey Guys, I have succesfully finished my first DIY project and enjoying the sound. I have never in my life recorded such high quality audio. I built the...
18370
fotoralf@...
belgoralf
Jun 19, 2012 1:23 pm
... Damage to the circuit is most unlikely under the conditions you describe. Still, exchanging opamps does at times have its pitfalls. I'll never forget the...
18371
Rev Tony Newnham
tonyn52
Jun 19, 2012 1:57 pm
Hi The moral is to check things like this first! Many years ago, when I was an apprentice, I blew one of only 7 Op Amps of a specific type in the UK ...
18372
sethinspain
Jun 19, 2012 3:28 pm
I am definitely thinking twice about this. I've read on the forum 2227 and 2604 worked, but I can only request from TI.com 2107, which I hear is also pretty...
18373
chris_mellinger
Jun 19, 2012 4:56 pm
This is very cool. Are there resources that you could point me to on deriving 48V phantom power from a battery source? I've been thinking about trying to do...
18374
David Pickett
kriegerjoh
Jun 19, 2012 6:10 pm
... During my apprenticeship, I blew a microwave varactor diode, of which only a few had been made by GEC at the time -- by testing it with a SelectTest that,...
18375
zapnspark
Jun 20, 2012 1:21 am
Hello Chris. The PreUmp-1 used 2 off the shelf, surplus DC-DC converter modules. Input 9 to 18 volts. Outputs +- 15 volts. Input and output grounds are...
18376
recordinghacks
Jun 20, 2012 3:38 pm
I'm asked for microphone recommendations frequently. I am inclined not to recommend USB microphones unless the primary requirement is convenience, because I...
18377
Jerry Lee Marcel
jerrylee.marcel
Jun 20, 2012 4:35 pm
5V is supplied consistently in terms of voltage. The available current is not always in conformity with norms. The norm is 5V+/-5%, 0.1A, i.e. 500mW available...
