| Mike Schneider |
Colour (Sound) Organ |
Monday, November 16, 2009 7:59:09 AM |
| I've just built this schematic here in my classroom and am having difficulties with it. I noticed when I ordered the crystal microphone from Mouser Electronics that it is polarized but it is not specified in the schematic. I've tried both ways: one way I get a buzz sound and it was stop as I touched the mic, the other I got nothing lol. I'm not quite sure what I'm doing wrong here. I also did a ohm reading on the transformer I ordered as well. I ordered the same one on your parts list however I'm getting a reading of only a few ohms I'm guessing that could be the issue lol. Any ideas would be great. |
| souvik kundu |
Colour (Sound) Organ |
Tuesday, September 15, 2009 1:54:45 PM |
| can i use plugin with vcd or dvd .how? pls reply |
| Jonas Karl Christopher N Agutaya |
Colour (Sound) Organ |
Monday, March 23, 2009 4:02:39 AM |
| Can a 10K:10 ohm-audio transformer be used? If not, what can I do to increase 10 ohms to 600 ohms without changing any other values? |
| anonymous |
Colour (Sound) Organ |
Sunday, January 11, 2009 4:46:38 AM |
| what is exactly this J1 J2 J3?
how is the connection of resistors R10,R7&R11,R8&R12,R9 |
| Dan |
Colour (Sound) Organ |
Wednesday, October 08, 2008 7:56:05 PM |
| Is there any way to make them more responsive. I made a 120v one and compared to my friends, who made the same thing, It takes a larger audio input signal. For an input, I used compression terminals that connect to the audio transformer (Mouser 42TM114-RC) |
| Jay |
Colour (Sound) Organ |
Tuesday, September 16, 2008 1:30:20 AM |
| can I connect a sound source(CD player) instead of microhone. Plz reply.
Rgds
Jay |
| Burnett |
Colour (Sound) Organ |
Saturday, May 10, 2008 5:17:58 PM |
| Is there a way where instead of there being a mic for your sound input that you could wire either rca cords or like 3-4 3.5 jack inputs for your sound and if so what are the schematics of it....thanks for your time and please email me back |
| anonymous |
Colour (Sound) Organ |
Tuesday, March 11, 2008 3:08:56 AM |
| Could you upload the 12v version for everyone to see? |
| Kermit |
Colour (Sound) Organ |
Saturday, February 23, 2008 5:40:56 PM |
| correction: DC version with SCR (thyristor) wont clear lights after triggered once. Use a transitor instead, no clue what type is best |
| Kermit |
Colour (Sound) Organ |
Saturday, February 23, 2008 11:19:12 AM |
| Changes for 230 V AC Version:
C1 & C2 = 22µf 500V Electrolytic Capacitor
R1 = 100k 1/2 W Resistor
Q3, Q4 & Q5 = C106D or S4003L
Changes for 12 V DC Version:
remove C1, C2 & R2
replace D1 & R1 with a wire
connect +12V on top (common at bottom)
use 12V bulbs ;)
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