tag:blogger.com,1999:blog-5481402030233340127.post5388480465200381637..comments2024-03-28T17:24:07.520-04:00Comments on Perf and PCB Effects Layouts: Dunlop JH-F1 Jimi Hendrix Fuzz Facedtgehringhttp://www.blogger.com/profile/09555201436004501222noreply@blogger.comBlogger26125tag:blogger.com,1999:blog-5481402030233340127.post-67429265011919058992020-06-29T07:53:30.294-04:002020-06-29T07:53:30.294-04:00Just built one yesterday and it sound's fantas...Just built one yesterday and it sound's fantastic , i'm just was about close as I can with every value.<br />I putted 500k pot for the Vol instead of 470 , and some of the resistors are close enough to the not making any sense values that dunlop used on their re creation of the fuzz face.<br />I socketed the transistors , gonna try some different NPN I've got.<br />But I have one weird thing maybe someone here figuered before.<br />When I'm crancking the Vol pot from around 70% to 100% it's getting really fizzy and much more unusable treble.<br />When it's about 70% it's just fat and flat and sounds really good.<br />Any idea?Tom1349https://www.blogger.com/profile/09335564150330358326noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-44306360242410615882020-05-19T07:20:25.368-04:002020-05-19T07:20:25.368-04:00Getting ready to build this one. What would you re...Getting ready to build this one. What would you recommend for the transistors... BC108 B's or BC108 C's? Seems like I read a comment from Analog Man that he uses BC108 C's. Just ordered some B's and C's and will check all out.Analog Pedalshttps://www.blogger.com/profile/01250574704478675955noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-32041097082082319692020-05-19T07:19:46.604-04:002020-05-19T07:19:46.604-04:00This comment has been removed by the author.Analog Pedalshttps://www.blogger.com/profile/01250574704478675955noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-61679703272499985632018-07-31T14:44:18.336-04:002018-07-31T14:44:18.336-04:00It's working! I had to start all over 2 times ...It's working! I had to start all over 2 times .. but now it's finally working!! Maurohttps://www.blogger.com/profile/14215940856060894731noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-49976304544349770412018-07-18T19:29:42.426-04:002018-07-18T19:29:42.426-04:00Thanks! As soon as I test it I will let you guys k...Thanks! As soon as I test it I will let you guys know :)Maurohttps://www.blogger.com/profile/14215940856060894731noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-32346956932305999622018-07-17T12:59:42.508-04:002018-07-17T12:59:42.508-04:00Yeah, just get as close as you can.Yeah, just get as close as you can.Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-68353645923781368322018-07-16T18:36:19.047-04:002018-07-16T18:36:19.047-04:00Hi guys... Im building this as my first project......Hi guys... Im building this as my first project...but I'm not able to find 3.16k and 82.5 resistor... can I use another with similar values?Maurohttps://www.blogger.com/profile/14215940856060894731noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-54530732615786206452018-05-02T16:29:20.258-04:002018-05-02T16:29:20.258-04:00Verified! It's working. After some tests its w...Verified! It's working. After some tests its working fine. Thanks.IvanSdVhttps://www.blogger.com/profile/02302882009706765695noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-76833151760531813052018-04-11T17:45:47.734-04:002018-04-11T17:45:47.734-04:00OK thank you. Seems that his hobbie means to keep ...OK thank you. Seems that his hobbie means to keep learning new things all the time. Cheers. <br />: )IvanSdVhttps://www.blogger.com/profile/02302882009706765695noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-6827015555232684082018-04-11T17:18:55.744-04:002018-04-11T17:18:55.744-04:00One on the collector, one on ground.
A lot of dig...One on the collector, one on ground.<br /><br />A lot of digital multimeters have sockets for measuring hFE, though there are other ways of doing it. Best to google it ;)Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-23725281120234485222018-04-11T16:55:35.207-04:002018-04-11T16:55:35.207-04:00Thank you for answer so fast!
Some more precision...Thank you for answer so fast! <br />Some more precisions:<br />1. should I measure voltaage from colletor with one multimeter needle and the other one on the emiter? or on ground?<br />2. Its listed "Q1,2 B108-260 hFE for both"<br />So, how much its 260 hFE in Volts.? IvanSdVhttps://www.blogger.com/profile/02302882009706765695noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-24121160720004511052018-04-11T08:14:10.160-04:002018-04-11T08:14:10.160-04:00Yes, output from Vol 2. You'll need to measure...Yes, output from Vol 2. You'll need to measure the voltage on the collector of each transistor with a multimeter. Adjust the trim pots till you get the voltage listed in the layout above.Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-59431055275591037112018-04-11T00:35:43.483-04:002018-04-11T00:35:43.483-04:00Hi, im trying to put together my first one. So, I&...Hi, im trying to put together my first one. So, I've a couple of questions: <br /><br />1.The output comes from the Volume Pot #2? <br />2.How to bias? and/or at what value each transistor should be?<br /><br />Thank you in advance!IvanSdVhttps://www.blogger.com/profile/02302882009706765695noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-25817702840643350642018-02-05T09:22:35.894-05:002018-02-05T09:22:35.894-05:00Use 2n3904 para q1 y 2n2222 para q2. Lo importante...Use 2n3904 para q1 y 2n2222 para q2. Lo importante es el hfe y medir los voltajes para los transistores... Suena lindoFacundohttps://www.blogger.com/profile/04926183038893334609noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-90975019422758056092017-01-14T08:20:02.984-05:002017-01-14T08:20:02.984-05:00VR50K and VR 10K
How to adjust?VR50K and VR 10K <br />How to adjust?MMGhttps://www.blogger.com/profile/00588984115185913733noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-15825014585344510172017-01-13T09:36:33.885-05:002017-01-13T09:36:33.885-05:00Cool. Thanks for verifying!Cool. Thanks for verifying!Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-79438112053961013972017-01-13T09:05:35.428-05:002017-01-13T09:05:35.428-05:00it's verified, working greatit's verified, working greatDennis Kriggerhttps://www.blogger.com/profile/01718237754876647885noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-11103090384747876172016-12-17T16:05:54.892-05:002016-12-17T16:05:54.892-05:00280 and 282 will be enough?280 and 282 will be enough?Dennis Kriggerhttps://www.blogger.com/profile/01718237754876647885noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-784830348968397492016-12-17T15:48:25.896-05:002016-12-17T15:48:25.896-05:00Probably. Measure the hfe. Probably. Measure the hfe. Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-49498773475411349722016-12-16T21:51:54.691-05:002016-12-16T21:51:54.691-05:00will work with bc109b? will work with bc109b? Dennis Kriggerhttps://www.blogger.com/profile/01718237754876647885noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-36258785078921633262016-07-20T12:29:47.386-04:002016-07-20T12:29:47.386-04:00This is still unverified? This is still unverified? MatiasVhttps://www.blogger.com/profile/04624983602739198721noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-74175888787215303682016-03-21T21:42:29.143-04:002016-03-21T21:42:29.143-04:00Saludos Carlos soy Allan Belt ;)Saludos Carlos soy Allan Belt ;)Pedal Makerhttps://www.blogger.com/profile/05932168344099362391noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-90740577164170413352016-03-07T09:20:50.549-05:002016-03-07T09:20:50.549-05:00The 47µF cap is the power filter. Replacing it wit...The 47µF cap is the power filter. Replacing it with a lower cap shouldn't change the sound of the effect.Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-12541999619539822722016-03-06T13:36:23.343-05:002016-03-06T13:36:23.343-05:00May be better if you replace 47uf to 47nf(0.047uf)...May be better if you replace 47uf to 47nf(0.047uf). Sound is goodSuper Люки - интернет магазин ревизионных люковhttps://www.blogger.com/profile/07214595644276980995noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-59501111168951428302016-03-06T13:34:38.602-05:002016-03-06T13:34:38.602-05:00This comment has been removed by the author.Super Люки - интернет магазин ревизионных люковhttps://www.blogger.com/profile/07214595644276980995noreply@blogger.com