Search found 323 matches

by nclayton
Mon Nov 10, 2008 8:10 am
Forum: Creative Recording
Topic: Mic splitter using resistors
Replies: 11
Views: 2867

Re: Mic splitter using resistors

Also is there a way to isolate one split from phantom power? what if I were to permanently lift the ground, that would certainly not pass phantom but what are the reasons this should not be done? Any other input on the subject is welcome. +1 on just using a Y type splitter. If you were trying to mi...
by nclayton
Fri Oct 31, 2008 8:14 am
Forum: Creative Recording
Topic: Balanced Output Levels - Controller?
Replies: 8
Views: 1788

If you want to use dual pots, go with 5K if you can find them, 10K if you can't. You should be able to find "stereo" ganged pots that you can use pretty easily, and they don't have to super expensive since pot to pot matching actually isn't super crucial for this setup. You could try this guy: http:...
by nclayton
Thu Oct 30, 2008 12:41 am
Forum: Creative Recording
Topic: Balanced Output Levels - Controller?
Replies: 8
Views: 1788

What's the reason for the series 2.2K resistors? Not second guessing, just wanting to understand. They do 2 things. They provide the series resistance to drop the voltage through the pot shunt. If they weren't there, the series resistance for the voltage divider would just be the output impedance o...
by nclayton
Fri Oct 24, 2008 8:04 am
Forum: Creative Recording
Topic: Cold PM1000 Console Power Supply
Replies: 11
Views: 2093

Yeah, if the primary reads OK, which it sounds like it does, then *probably* the transformer is fine. I think the PM1000 power supplies put out like 2 or 3 voltages, one for the main audio stuff, one for phantom and maybe one for like the lamps and stuff. I assumed all the output voltages were gone,...
by nclayton
Thu Oct 23, 2008 9:22 am
Forum: Creative Recording
Topic: Cold PM1000 Console Power Supply
Replies: 11
Views: 2093

One of just a few ways a power supply can completely die that won't cause a fuse to blow is if a coil in the transformer opens up, probably the primary. If you've got another transformer on the spare supply, you might want to just go ahead and swap it and see if it helps. Or if you want to test firs...
by nclayton
Mon Oct 20, 2008 10:42 pm
Forum: Creative Recording
Topic: What's a good technical resource book for everything tape?
Replies: 1
Views: 819

Do you have the owners manual for your machine? It's a big book and covers a lot of stuff including everything you mention and lots more. I'm sure you can find one on ebay. If not, I have one to spare, you can pm me.
by nclayton
Tue Oct 07, 2008 11:03 am
Forum: Creative Recording
Topic: replacing caps. is it REALLY that good to do?
Replies: 69
Views: 10790

Hi. I don't know if I've fully digested everything you've written here, but to me it still sounds like you've got oscillation in the board or in the power supply. What makes you think you've got a dead short? Have you measured the short with an ohmeter? I think there's nothing wrong with the meters....
by nclayton
Sat Oct 04, 2008 11:28 pm
Forum: Creative Recording
Topic: replacing caps. is it REALLY that good to do?
Replies: 69
Views: 10790

Hi. So it sounds like now the PS can supply the board without blowing your 2A AC line fuse? But the stability problem is still there? Personally, I don't think you did anything wrong by upgrading the PRIMARY filter caps on this. I don't think any of your problems have been caused by extra inrush, an...
by nclayton
Mon Aug 18, 2008 8:28 am
Forum: Creative Recording
Topic: MX-50 Meltdown
Replies: 4
Views: 1075

The reel table height is adjustable on these. Are you sure even though the reel isn't warped that it might not be scraping against the head of a screw or something like that? It really sounds to me like you probably just need to adjust the reel table out from the machine a bit, but of course I guess...
by nclayton
Wed Aug 13, 2008 4:09 pm
Forum: Creative Recording
Topic: DiY Tape Delay?
Replies: 58
Views: 27379

I've got to be honest....I think the idea of making a tape delay where the delay part is done with an IC seems kind of crazy. First of all, making an electronic delay is not a super simple thing, and I don't think using one will make the mechanical portion of the job THAT much simpler. In other word...
by nclayton
Wed Jul 23, 2008 10:43 pm
Forum: Creative Recording
Topic: DiY Tape Delay?
Replies: 58
Views: 27379

Good luck with this! I've semi-thought about trying to cobble something like this together a few times, but never been able to think of something that would work so great it would be worth the time, so never really tried to put any notions into action. I think it would be kind of hard maybe, but may...
by nclayton
Wed Jul 23, 2008 9:59 pm
Forum: Creative Recording
Topic: Is 60 ips recording actually possible?
Replies: 21
Views: 4735

Hi. I'd love to see a pic of your ampex data recorder. I checked your link, and that guy mentions the preamps for his recorder were 350's and 400's which means it was NOT an FM recorder. It probably must have been to begin with, but it looks like he must have converted it to regular non-FM electroni...
by nclayton
Wed Jul 23, 2008 4:34 pm
Forum: Creative Recording
Topic: Is 60 ips recording actually possible?
Replies: 21
Views: 4735

In theory, tape hiss shouldn't be a problem at all with FM recorders. The carrier should be printed on the tape at a big enough level that the hiss wouldn't have much chance to modulate it. But there would be lots of other electronic ways for noise to enter the picture. For example, the carrier sign...
by nclayton
Mon Jul 21, 2008 10:09 am
Forum: Creative Recording
Topic: Anyone know where to get one of those knob tools?
Replies: 3
Views: 1030

I think you mean a collet knob tool? I doubt if you'll find something specifically designed for removing collet knobs for very much less than the $60 one, but for way less than $60 you could go buy a flat head screwdriver and a file, then file the screwdriver to the right shape to do it. I assume yo...
by nclayton
Wed Jul 09, 2008 8:53 pm
Forum: Creative Recording
Topic: any differences between Altec 1592A and 1592B?
Replies: 3
Views: 1363

There are a couple of differences, actually. The 1592A has a 2 way voice/music switch under each pot. If I'm remembering right, the voice position is just a HPF. The 1592B has a 3 way -10/-20 db pad under each switch. The two do have different master section electronics. I don't remember all the det...