tag:blogger.com,1999:blog-8952953525323266007.post5320427055147785563..comments2024-03-21T21:53:45.865+01:00Comments on English Drummer: Headphone Bass Booster Pedro Fernándezhttp://www.blogger.com/profile/15704566159311411008noreply@blogger.comBlogger20125tag:blogger.com,1999:blog-8952953525323266007.post-63308781124670089382018-11-05T22:07:09.531+01:002018-11-05T22:07:09.531+01:00This is probably spam, but you know, I don't g...This is probably spam, but you know, I don't give a fuck. Cheers Jack.Pedro Fernándezhttps://www.blogger.com/profile/15704566159311411008noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-32030464695032160012018-11-05T12:50:11.356+01:002018-11-05T12:50:11.356+01:00Thank you for sharing this information, Its has he...Thank you for sharing this information, Its has help me to know more about <a href="https://www.globaldelight.com/boomforios/" rel="nofollow">Equalizer Software Mac<br /></a>jack diashttps://www.blogger.com/profile/05698881605935284602noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-35305687828080172312015-04-26T23:59:06.462+02:002015-04-26T23:59:06.462+02:00Thank you for your comment Kellie. Thank you for your comment Kellie. Pedro Fernándezhttps://www.blogger.com/profile/15704566159311411008noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-64250278111376089362015-02-06T20:53:52.450+01:002015-02-06T20:53:52.450+01:00This a really good project. I’ve seen the video an...This a really good project. I’ve seen the video and heard its capabilities, and the boost sounds amazing! Good job on getting rid of those hissing sounds as well, as most gadgets such as these usually have hissing sounds that are really annoying. Anyway, thanks for sharing this with us. Cheers!<br /><br /><br /><a href="https://aimdynamicsco.wordpress.com/2015/01/02/current-affairs/" rel="nofollow">Kellie Taylor @ Aim Dynamics</a>Anonymoushttps://www.blogger.com/profile/02648108871785891398noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-53725372020816533872014-10-24T05:17:17.177+02:002014-10-24T05:17:17.177+02:00Ok I have a 9v power adapter going thru the lm7805...Ok I have a 9v power adapter going thru the lm7805, ok ill try three AAA battery and try it on the two channels see if I hear the hmmm or hizz on them separate. If I still do ill just go with the 9v battery. Cause I didnt hear the hmmm before, and thank you.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-43360792878127933212014-10-23T01:22:35.767+02:002014-10-23T01:22:35.767+02:00The lm7805 is perfect for the job, but remember 5 ...The lm7805 is perfect for the job, but remember 5 volts is the output, the input must be around 8 up to 20 or even 40 DC volts (depending on the manufacturer) so it can work properly. Lower input than that and you'll get malfunction and noise. The lm7809 may be a bit dangerous because it outputs 9 volts, and maybe for your exact lm386 it can be too many. You'd be safe if you connect both channels in series because you'd get 4.5 V for each one. Again, you'd need to feed its input with higher voltage, maybe this time from 12 to max 30 or 40 V...<br /><br />Anyway you can always try to feed the circuit directly with battery, avoiding the voltage regulators. Batteries produce no noise at all, they are good for testing. Like that, you can see if the problem is in the circuit or in the power supply. Remember taking care of the voltages, if you connect channels in parallel or just feed one channel, use a 4.5 V battery, if you put them in series, 9 V.<br /><br />Pedro.Pedro Fernándezhttps://www.blogger.com/profile/15704566159311411008noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-68655089924927927572014-10-22T10:13:24.540+02:002014-10-22T10:13:24.540+02:00Well I hear the music but when there is no music t...Well I hear the music but when there is no music thats when you hear the hmm. I checked the board there is no short circuit and I was thinking the lm7805 is 5V do you think that might be the problem that I hear the hmm have you try the lm7809.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-7967337534824663662014-10-20T03:26:24.031+02:002014-10-20T03:26:24.031+02:00Hi man, you don't tell me if despite of the no...Hi man, you don't tell me if despite of the noise it works or not. I guess you hear the noise but not the music you input. In that case, check the circuit joints, make sure what is in the diagram is exactly what you've mounted. I reckon one problematic spot is the LM386 pin numbering. Check if you confused some pin.<br /><br />Some noise increase when you touch the circuit or the pot is normal.<br /><br />Pedro.Pedro Fernándezhttps://www.blogger.com/profile/15704566159311411008noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-12387673692284418852014-10-20T03:06:03.914+02:002014-10-20T03:06:03.914+02:00Hi Pedro im back I just finish putting everything ...Hi Pedro im back I just finish putting everything together like you did and i hear the hizz when I disconnect the power adapter but when I the power adapter on the wall I hear a hmm and its pretty noticeable (loud) and get louder when I put my fingers near the pot. What could it be?<br /><br />I still need to try it with other sources. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-20185475915724675782014-10-06T05:12:33.875+02:002014-10-06T05:12:33.875+02:00Ok thats cool ill check the picture out and ill co...Ok thats cool ill check the picture out and ill come back if i need more help thanks.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-41141664126893452772014-10-06T03:35:07.450+02:002014-10-06T03:35:07.450+02:00I put one pot, and I posted exactly how to connect...I put one pot, and I posted exactly how to connect it in the picture I put in some comment. Just look at the numbers for matching pot pins and circuit. <br /><br />It's better that if you are in trouble comment here so everyone can check it.<br /><br />Pedro.Pedro Fernándezhttps://www.blogger.com/profile/15704566159311411008noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-37552589194245731422014-10-05T20:36:08.068+02:002014-10-05T20:36:08.068+02:00Ok thank you so much for your help I would like to...Ok thank you so much for your help I would like to have you email if possible, you know so much about electronic and since I just started into this and kind of a noob, also you reply back fast and would like to ask for your help next time im stuck.<br /><br />Oh and did you put one pot or still have two pots. If you did put only one pot to control both channels can you please tell me how.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-966897676370865412014-10-04T02:46:56.745+02:002014-10-04T02:46:56.745+02:00Hi,
"So you also said + side of the adapter...Hi, <br /><br />"So you also said + side of the adapter goes to In, pin Out goes where you were connect the + of the battery of the pcb"<br /><br />That is correct. The GND (GrouND) pin have to be connected to ground, the - of the adapter to ground as well. In this project you can consider negative=ground (GND), because both have 0 volts. Ground is the 0 volt reference, every negative side or ground have to be connected to ground, and grounds of the 2 channels have to be connected together because they are the same 0 volt point of reference.<br /><br />"And last you said to take out the resistor R6 and just put a jumper instead of the resistor? "<br /><br />Yes I did. I said somewhere, by doing that you get a wider range in the pot. This has no downside at all, but a lot of benefit. <br /><br />"Also can you tell me if there any hizz on the amp or just silence when there is no music."<br /><br />This is an interesting question. It depends on the audio source you use and the distance to the amp. Generally speaking, the noise is not worrying at all. When using my laptop I get a little bit of it, with my mp4 player you have to be very picky to realise, with my phone just silence. It depends, but don't worry, the result you get of that project is so awesome you won't mind any fuzz.Pedro Fernándezhttps://www.blogger.com/profile/15704566159311411008noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-78204838423029627282014-10-02T16:05:13.916+02:002014-10-02T16:05:13.916+02:00Hi Pedro I have some question on the 7805 you said...Hi Pedro I have some question on the 7805 you said that has three pins and they're cal,l In, Out and GND rite?<br /><br />So you also said + side of the adapter goes to In, pin Out goes where you were connect the + of the battery of the pcb, and the GND pin goes to the - side were the battery should be going? Or the - side of the adapter goes were the - side of the battery should be going.<br /><br />And last you said to take out the resistor R6 and just put a jumper instead of the resistor? <br /><br />Also can you tell me if there any hizz on the amp or just silence when there is no music.<br /><br />Well hope you could reply and thank you for the modz.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-33698767305750843622014-09-24T01:50:32.079+02:002014-09-24T01:50:32.079+02:00Ok mate, don't worry. Check this picture, I wr...Ok mate, don't worry. Check this picture, I wrote some indications on it.<br /><br />http://i.imgur.com/W61AU1l.png<br /> <br />In that, it is powered by a battery. The set up with a wall adapter would need some more wiring. I forgot to add the LED, but that is not complicated. Let me know if you need more help,<br /><br />Pedro.Pedro Fernándezhttps://www.blogger.com/profile/15704566159311411008noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-40802525006951659472014-09-22T18:26:53.268+02:002014-09-22T18:26:53.268+02:00Hello Pedro, i tried all possible things i cud do ...Hello Pedro, i tried all possible things i cud do in the ckt, but dont have a result yet, i would want to know how did you connect the terminals of stereo pot into the ckt, maybe the terminal connection is the reason why i am not successful in getting its output.Anonymoushttps://www.blogger.com/profile/13844413314379012207noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-9788315346728561252014-09-20T01:40:40.290+02:002014-09-20T01:40:40.290+02:00Hi Jolton, I have no schematic for this. Modificat...Hi Jolton, I have no schematic for this. Modifications are really simple with a minimum electronic knowledge. <br /><br />-The wall adapter that I used is connected in the same place as the battery, but between it and the adapter I put a 7805 voltage regulator. It is simple because it only has 3 pins. IN (adapter +), OUT (circuit +) and GND (ground or negative). Check Google on how to connect it if you have difficulties. <br /><br />- The LED is in series with a resistor (whose value can't remember), maybe 500 ohm or 1K. It is connected to OUT in the 7805 (which is positive) and ground.<br /><br />-The pot in the schematic is R5. I used one double (stereo pot) instead of one simple (mono) for each channel which is stupid.<br />- R6 is short-circuited, I mean, it is replaced by a wire. That way you get a better range.<br /><br />Pedro.Pedro Fernándezhttps://www.blogger.com/profile/15704566159311411008noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-27402188623935048322014-09-18T05:57:27.995+02:002014-09-18T05:57:27.995+02:00Can u pls send me the schematic of your modified c...Can u pls send me the schematic of your modified ckt so that i can build it for myself too.Anonymoushttps://www.blogger.com/profile/13844413314379012207noreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-41860423418778006252014-09-13T07:30:17.764+02:002014-09-13T07:30:17.764+02:00Can you please show me your ckt diagram so that I ...Can you please show me your ckt diagram so that I can build according to your schematic, it wud be of great helpAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8952953525323266007.post-74496266087883852712014-09-12T15:59:28.333+02:002014-09-12T15:59:28.333+02:00can you please provide me with your Circuit Diagra...can you please provide me with your Circuit Diagram so that i can make it according to how you have made it, it would be of great help :DAnonymousnoreply@blogger.com