ZDL CTD-105 cassette tape-delay 'project' - working
Posted: Tue Mar 15, 2005 2:23 am
				
				Hi guys, <BR>so I actually have got my hands on this idea...if you remember while ago, I had that idea to try to build tape-delay based on cheap parts of used cassette deck(s). <BR>Well, the idea is(was) maybe a sort of primitive, but practicly isn't so simple. But at least I have found some free time to start working on it. I wish I had more time to play with toys..hah hah <BR>OK, so ... so far I'm on , let's say, experimental stage... And, man, this was actually a tough thing from 'craftmenship' point, but I've managed to make the damn thing running. <BR>Here's a small thumb: <BR><IMG SRC="http://www.interruptor.ch/cgi-bin/discu ... 99/913.jpg" ALT="zdl CTD-105 test"> <BR>Here are links to larger images: <BR><A HREF="http://www.mzentertainment.com/pics/pro ... test_1.jpg" TARGET="_blank">ZDL CTD-105 tape drive test</A> <BR><A HREF="http://www.mzentertainment.com/pics/pro ... test_2.jpg" TARGET="_blank">ZDL CTD-105 two cassettes tape</A> <BR> <BR>As you can see the idea is about running the tape from tape-drive 1 (cassette 1) to tape drive 2 (cassette 2), where the drive 1 is recording and drive 2 is reading (playback). This is the base. <BR>Again, it took me some sweat to make the thing actually running through. So the cassette 2 (where the reading head is) is actually the driving 'tray', the cassette 1 (writing head) is mechanicly passive (I took the pinch roller out), the tape is going through it - from left reel of cassette 1 to cassette 2 then through writing head, then to cassette 1 through reading head to right reel. I can fast forward and rewind the tape as well. <BR>I was thinking making loop instead, but the tape is so freaking thin and soft, it's not like reel-to-reel...very hard to deal with. <BR>I also placed another play-head in the position of erase head in the cassette 2 mechanism, but I am thinking now that it's not may be a good idea, 'cos it is really hard to place it well in that location. I may try later to place another head maybe in between the cassettes , but this all will depends on how I will be designing the whole thing later. For now it mast pass all basic tastes first... <BR>Alright , guys, you've got the picture , I guess. <BR>What this may be good for??? hah hah ha... so far, I have no answer, untill I get to actually puting together electronics. But the good news is that I can widely control the tape speed by changing viltage for the motor... The motors are 12VDC, so I could run it from about 4V through 12V ...and speed goes from full stop through something like double speed of normal cassette deck playback speed. <BR>ok, I'll drop update, when I next time get back to this ... I'm not sure when...when ever I get free time to play with it. <BR>Any crazy idea or comments welcome <IMG SRC="http://www.interruptor.ch/cgi-bin/discu ... /happy.gif" ALT=":)"> <BR>/respects, <BR>/Mike Zee aka Dr. ZEE <BR><A HREF="http://www.mzentertainment.com/dub_lab2.html" TARGET="_blank">ZEE DUB LAB</A>
			 
  
   
   
   
  ) guitar, and mess with tape speed here and there.
  ) guitar, and mess with tape speed here and there. 
 
 
  , also in this set up with ampex I have no way to control (adjust) echo timing (speed), I only can switch tape speed of the machine between 3-1/4 and 7.5 ips, and at slow speed you get clearly echos, but at 7.5 it's pretty short, it's cool for something like fast guitar picking playing. (of course, there's another option - inserting a digital delay "unit" in the feedback path can be used for controling echos timing)
 , also in this set up with ampex I have no way to control (adjust) echo timing (speed), I only can switch tape speed of the machine between 3-1/4 and 7.5 ips, and at slow speed you get clearly echos, but at 7.5 it's pretty short, it's cool for something like fast guitar picking playing. (of course, there's another option - inserting a digital delay "unit" in the feedback path can be used for controling echos timing)