tag:blogger.com,1999:blog-5481402030233340127.post7837661120216679919..comments2024-03-28T01:15:58.057-04:00Comments on Perf and PCB Effects Layouts: SolaSound Tone Bender Mk. IIIdtgehringhttp://www.blogger.com/profile/09555201436004501222noreply@blogger.comBlogger32125tag:blogger.com,1999:blog-5481402030233340127.post-17857168463034884342023-07-02T00:21:58.469-04:002023-07-02T00:21:58.469-04:00This comment has been removed by the author.Hugo C,https://www.blogger.com/profile/14033012196806741177noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-55810383578455147672022-09-11T12:59:36.510-04:002022-09-11T12:59:36.510-04:00Vintage Layout: Verified
BUT the reverse polarity...Vintage Layout: Verified<br /><br />BUT the reverse polarity protection diode (1N4001) needs to be turned around otherwise it won't work.<br /><br />The Vintage Layout is just beautiful. I just used normal pots, turned the lugs with a plier and soldered the connections with short wires.<br /><br />I built it with Vox specifications and it rips like it should be. Thank you so much for this layout! :-)ClassicFuzzhttps://www.blogger.com/profile/16806215654593217637noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-55505083710252997972022-07-24T15:16:00.189-04:002022-07-24T15:16:00.189-04:00This comment has been removed by the author.ClassicFuzzhttps://www.blogger.com/profile/16806215654593217637noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-16738017092815009002022-01-24T19:31:54.000-05:002022-01-24T19:31:54.000-05:00Obrigado Obrigado Andyhttps://www.blogger.com/profile/18428117698602506968noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-7869666361586383392022-01-24T14:14:09.712-05:002022-01-24T14:14:09.712-05:00Germanium transistors can be pretty sensitive to t...Germanium transistors can be pretty sensitive to temperature changes and the diode there helps to prevent temperature from un-biasing Q3. From Coda Effects' explanation:<br /><br />"When the temperature changes, the characteristics of the diodes change the same way the characteristics of the Q3 transistor, and avoid biasing problem by flowing the excessive current to ground."Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-88301695470894607372022-01-24T13:37:09.407-05:002022-01-24T13:37:09.407-05:00What is the function of the GE diode in this circu...What is the function of the GE diode in this circuit?Andyhttps://www.blogger.com/profile/18428117698602506968noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-88342594204291977142021-09-06T17:50:58.234-04:002021-09-06T17:50:58.234-04:00Lug 2 from volume goes straight to the switch??!Lug 2 from volume goes straight to the switch??!Limahttps://www.blogger.com/profile/13477583209225080083noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-36094381230243202202020-03-16T12:21:03.184-04:002020-03-16T12:21:03.184-04:00
someone verified? I have built it and I have volt...<br />someone verified? I have built it and I have voltage in the circuit of 0.82v. any ideas maybe polarity control wrongtxehttps://www.blogger.com/profile/12125478250661877524noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-22146388422442513432018-10-03T15:03:44.399-04:002018-10-03T15:03:44.399-04:00It's in the Colorsound_Solasound folder:
http...It's in the Colorsound_Solasound folder:<br /><br />https://www.dropbox.com/s/scai2tjcp4xjn4n/SolaSound%20Tonebender%20Mk3.pdf?dl=0Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-39473737393680348432018-10-03T12:33:41.676-04:002018-10-03T12:33:41.676-04:00Am I blind or stupid? Unfortunately I can't fi...Am I blind or stupid? Unfortunately I can't find the transfer image for the original inspired layout. Can you please help me and point me to that? Thanks in advance!<br />H.A.https://www.blogger.com/profile/14902368424693892567noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-2056175624586728552017-06-01T15:13:28.706-04:002017-06-01T15:13:28.706-04:00Yeah I think that's right.Yeah I think that's right.Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-64065424768718177072017-05-30T20:02:17.232-04:002017-05-30T20:02:17.232-04:00Which is the difference on the cap from Q2's e...Which is the difference on the cap from Q2's emitter to ground? Lower value = more gain/highs?IvMhttps://www.blogger.com/profile/02555112437631034123noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-83072058255666101232017-02-24T09:19:36.845-05:002017-02-24T09:19:36.845-05:00Cheapest are probably Russian old stock germaniums...Cheapest are probably Russian old stock germaniums like MP38s. That's what I'd start with for this build. I also cannot recommend enough getting something to test transistor gain (hFE). A lot of digital multimeters have them. Ideally you want the first 2 transistors to be pretty low (80 or lower) as they form a darlington transistor pair. The 3rd transistor should be around 100-120. Really, it's more about the hFE of the transistors than the actual type. Surf ebay and find some cheap options and measure. Or order from someplace like Small Bear that sells measure sets of transistors for various old germanium circuits. Best of luck!Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-33961082279752186042017-02-23T18:57:24.735-05:002017-02-23T18:57:24.735-05:00can you give a recommendation on what trannies to ...can you give a recommendation on what trannies to use? cheapest and easily obtained if possible. I get confused with all the different combos and names. Also is this a negative ground(boss style) or positive ground powered effect. I think i got that right. Id like to be able to use with my visual sound 1 spot, i know there are adapters but id rather avoid that if possible. Im a sucker as well for elimination of offboard wiring as much as possible. Also old school style layouts. Too bad the inverted pin type pots arent anywhere close to accessable as the 16mm right angle ones. i know small bear has them. havent checked the cost , but havent seen any layouts that would even accomidate them. Thanks if you can give tranny recommendations.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-19491507035405655092017-02-15T14:46:39.508-05:002017-02-15T14:46:39.508-05:00https://www.dropbox.com/sh/iaegm30zvqgcvp1/AAD0x_G...https://www.dropbox.com/sh/iaegm30zvqgcvp1/AAD0x_GB3EZqRwcwSxW7QBlFa?dl=0<br />All the files are in .pdf with correct size.IvMhttps://www.blogger.com/profile/02555112437631034123noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-55997472613749386702017-02-02T10:26:27.108-05:002017-02-02T10:26:27.108-05:00What's the correct size to print it? Do you ha...What's the correct size to print it? Do you have an image file with the correct size?Anonymoushttps://www.blogger.com/profile/00493061436347665595noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-15458560796611241782017-01-26T13:56:46.489-05:002017-01-26T13:56:46.489-05:00No worries. I get that. Germaniums can be a pain t...No worries. I get that. Germaniums can be a pain to work with in the first place and often substituting silicon transistors makes it a bigger pain. Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-70631728617900492452017-01-26T13:27:57.807-05:002017-01-26T13:27:57.807-05:00Sorry if I insist on silicon transistors on all pr...Sorry if I insist on silicon transistors on all projects.<br />It's not that I do not want to use them: where I live, germanium transistors are very hard to find and expensive (avoiding purchase on ebay, pay customs).<br />Thanks again!IvMhttps://www.blogger.com/profile/02555112437631034123noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-43654117000949969232017-01-26T10:58:34.429-05:002017-01-26T10:58:34.429-05:00This comment has been removed by the author.IvMhttps://www.blogger.com/profile/02555112437631034123noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-28694326025505413022017-01-26T10:42:29.547-05:002017-01-26T10:42:29.547-05:00The reason Q1-2 are in a darlington is because the...The reason Q1-2 are in a darlington is because they didn't have transistors with a high enough hFE to just use one back then. Combining 2 modern silicon transistors will likely provide way too high a hFE and won't work. If you don't want to use low hFE germaniums for Q1-2, I suggest not trying to build this layout. Look at something like the DAM GB-83 or EQD Hoof Reaper.Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-64303351979771819202017-01-26T06:13:20.345-05:002017-01-26T06:13:20.345-05:00I'll use 2n3904/bc548 for darlington formation...I'll use 2n3904/bc548 for darlington formation, and germanium for Q3.<br />This last one, and the diode, are the "must be"IvMhttps://www.blogger.com/profile/02555112437631034123noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-74642848047310385422017-01-19T01:48:43.733-05:002017-01-19T01:48:43.733-05:00Hello I think the 1n34 Diode can't be inverted...Hello I think the 1n34 Diode can't be inverted in any case becouse it put the base of q3 to the ground......<br />Anonymoushttps://www.blogger.com/profile/13428095440722293394noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-16451250122198210742017-01-15T20:18:35.740-05:002017-01-15T20:18:35.740-05:00I would use the diode. Always good to have polarit...I would use the diode. Always good to have polarity protection. And yes, if using PNP, flip the polarized caps, diodes, and power wires.Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-1271937598693573772017-01-14T10:49:51.593-05:002017-01-14T10:49:51.593-05:00If I wanna use pnp germanium should I use the extr...If I wanna use pnp germanium should I use the extra diode anyway? I know every polarized component and the power wires must be inverted, right?Anonymoushttps://www.blogger.com/profile/00493061436347665595noreply@blogger.comtag:blogger.com,1999:blog-5481402030233340127.post-49849069465551987622017-01-14T01:14:31.915-05:002017-01-14T01:14:31.915-05:00The AC187 is a NPN while the 188 is a PNP. So to a...The AC187 is a NPN while the 188 is a PNP. So to answer your question no, not without some modification. Better to use another NPN for Q3. Sockets are your friends here.Effects Layoutshttps://www.blogger.com/profile/11341183658959824998noreply@blogger.com