tag:blogger.com,1999:blog-6847048658257278783.post2554338461471175656..comments2024-03-28T18:53:30.726+00:00Comments on Guitar FX Layouts: Jordan BosstoneIvIarkhttp://www.blogger.com/profile/08416945174853142251noreply@blogger.comBlogger26125tag:blogger.com,1999:blog-6847048658257278783.post-90764025392771028822023-05-04T04:08:31.330+01:002023-05-04T04:08:31.330+01:00Just build another one of these. For the PNP trans...Just build another one of these. For the PNP transistor, I used a germanium Russian MP16B (2N404) with 72hfe. NPN is 2N2222A. Also added the 4k7 in series w/attack pot lug 1. Sounds GREAT.neal gardnerhttps://www.blogger.com/profile/14201049471234984485noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-84549702789072610502023-03-21T10:32:00.909+00:002023-03-21T10:32:00.909+00:00Did box this as my first build some time ago. Ende...Did box this as my first build some time ago. Ended up using 2N2222A/2N3906 transistors and added a 4K7 in series to attack pot lug 1. Also added tone control after the volume pot just to tame some of the harshness of the bosstone :) did not change the sound too much though.sampo seppänenhttps://www.blogger.com/profile/16122303903743019095noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-32564284614778766802016-10-28T08:10:04.478+01:002016-10-28T08:10:04.478+01:00Built, verified, sounds great. Built, verified, sounds great. neal gardnerhttps://www.blogger.com/profile/14201049471234984485noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-69433049990447761902016-09-03T07:39:04.997+01:002016-09-03T07:39:04.997+01:00Just breadboarded using 2N2222A/2N3906. Sounds gre...Just breadboarded using 2N2222A/2N3906. Sounds great. Looking forward to soldering this one up!neal gardnerhttps://www.blogger.com/profile/14201049471234984485noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-11557607873660371172012-07-11T18:58:50.548+01:002012-07-11T18:58:50.548+01:00Brill..il give it a go...thanksBrill..il give it a go...thankstomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-74616623020119378642012-07-11T18:22:02.158+01:002012-07-11T18:22:02.158+01:00Simply put, just snip the wire (going from ground....Simply put, just snip the wire (going from ground.....<br /><br />No. I don't feel like trying to explain. Take a look here:<br />http://mirosol.kapsi.fi/varasto/boxes_other/JBT_attack_fix.png<br /><br />:)<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-4804153799055535072012-07-11T17:25:10.427+01:002012-07-11T17:25:10.427+01:00when u say in series with attack lug 1...can u exp...when u say in series with attack lug 1...can u explain it like yer talking to a 6 yr old please loltomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-89894548275608495442012-07-11T17:05:47.742+01:002012-07-11T17:05:47.742+01:00If you don't want it act like that, you can pl...If you don't want it act like that, you can place something like 4K7 resistor in series with attack lug 1. That way the minimum setting will start from 4K7 to the ground and not everything to the ground..<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-10152189951536373242012-07-11T15:56:46.874+01:002012-07-11T15:56:46.874+01:00Thanks Mark,,it is at the very beginning of the at...Thanks Mark,,it is at the very beginning of the attack sweep and disappears as soon as you move it a fraction but i always doubt my building skills with things like this..but it is a steep learning curve as im sure you remember. Thanks for all the layouts matetomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-72235594842811453682012-07-11T15:47:04.231+01:002012-07-11T15:47:04.231+01:00The Attack pot is essentially a pre-gain level con...The Attack pot is essentially a pre-gain level control, the Volume is post gain level control. So both dump the signal to ground in the far counter clockwise position. As such, altering the Attack control will change the amount of signal hitting the gain stage and the volume control will attenuate the resulting amplified signal to the required level. When the attack is down low it means the signal is also very low and I'm sure you could get some strange noises and glitching with effects like this.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-361329253002838652012-07-11T15:34:54.108+01:002012-07-11T15:34:54.108+01:00Hi Guys..yep me again...are the volume and attack ...Hi Guys..yep me again...are the volume and attack supposed to be interactive ??..my volume dont really wanna play unless I give it some attack...also on the very first smidge of the attack im getting a nasty feedback kinda noise until i move the control on a bit...I say feedback noise but i can only aliken it to the sound waterpipes sometimes make if you know what I mean ?? Im in the process of doing a video of it so if that would help il be happy to post the link when its on the tubetomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-50127013444327675832012-07-11T13:13:36.947+01:002012-07-11T13:13:36.947+01:00Think its time to invest in the DCA55 anayliser M...Think its time to invest in the DCA55 anayliser Mark was talking about a while agotomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-58284198843358560502012-07-11T13:13:17.781+01:002012-07-11T13:13:17.781+01:00If you're interested, here's a nice articl...If you're interested, here's a nice article about bipolar junction transistors: http://www.allaboutcircuits.com/vol_3/chpt_4/1.html<br />And here's 2 minute video that helped me understand these things a bit better :)<br />http://www.youtube.com/watch?v=ZaBLiciesOU<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-45211539431951964602012-07-11T13:10:38.334+01:002012-07-11T13:10:38.334+01:00Thanks Mirosol..Im still very new to this and find...Thanks Mirosol..Im still very new to this and find it a bit confusing.....I was thinking PNP was like the germanium types and NPN was silicone ...guess it couldnt be that easy huh ??tomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-7853839895913702732012-07-11T13:07:09.199+01:002012-07-11T13:07:09.199+01:00Ok cracked it..I had mis-read the layout with rega...Ok cracked it..I had mis-read the layout with regards to the jumpers..I didnt run the jumper between the pair of 22nf caps correctly as I thought it was just the solid black line spanning the 3 strips..then noticed the tiny black mark at the bottom indicating the jumper ran the whole way..it sounds like a fuzz tone now..not a distortion. Thanks for the help and suggestionstomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-53389605608413308292012-07-11T13:06:09.130+01:002012-07-11T13:06:09.130+01:002N3906 is PNP. Complete datasheet: http://www.data...2N3906 is PNP. Complete datasheet: http://www.datasheetcatalog.org/datasheet/vishay/85129.pdf<br /><br />It's basically PNP equilevant of 2N3904, which is NPN.<br /><br />Good substitute could be 2N2907. Devi uses a lot of those for PNPs.. :)<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-2811868470751308042012-07-11T12:03:32.415+01:002012-07-11T12:03:32.415+01:00Hi
Yeah tried a few others..but i have almost no r...Hi<br />Yeah tried a few others..but i have almost no response from that socket ( Q2 )..I may be asking a dumb ass question here but be gentle lol..but aint 2N3906 NPN ?...will def have a check for mistakes or messy soldering..but its so few components I feel daft getting this one wrongtomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-10623867055272884662012-07-11T12:02:46.019+01:002012-07-11T12:02:46.019+01:00Yes there are a lot of people who have built this ...Yes there are a lot of people who have built this layout successfully so it's definitely good. Just make sure you've used the correct orientations to match the pinouts for whatever transistors you ended up using. If you're using a 2N3904/3906 or 2N5088/5087 combo then Q1 should be rotated 180 degrees, Q2 would be correct.<br /><br />Remember on the layouts where I haven't specified any transistor type, I won't have paid any attention at all to orientation.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-28485659095818725292012-07-11T11:55:41.074+01:002012-07-11T11:55:41.074+01:00Bad 2N3906? You could try on any PNP transistor in...Bad 2N3906? You could try on any PNP transistor instead to see what works the best. Just note the pinout.<br /><br />And be sure to check for bridges and cold joints, as it works great for me with both transistors.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-79253421874993070592012-07-11T11:03:37.085+01:002012-07-11T11:03:37.085+01:00Hi
tried Mirosol's suggestion for transistors....Hi<br />tried Mirosol's suggestion for transistors..but just had a clean ish tone...then noticed the pin out was reversed on the layout...trial and error ed..by swapping and trying out..I had a overdriven tone of sorts..but it quickly decayed..( like a worn battery )..however..when i remove the 3906 and just run the single 22's..I get a good distortion tone..put the 3906 back..rubbish.....any ideas pleasetomo6314https://www.blogger.com/profile/12704122430862869213noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-56232861588585683412012-07-04T08:09:22.347+01:002012-07-04T08:09:22.347+01:00Yes, just 2 cuts and 2 links so I didn't think...Yes, just 2 cuts and 2 links so I didn't think it was worth the bare board layout.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-919647539355973712012-07-04T07:16:02.680+01:002012-07-04T07:16:02.680+01:00he usually shows the bare vero board depicting the...he usually shows the bare vero board depicting the cuts and links without the components, along with the one posted. does this one just have the two cuts and two links?johnkhttps://www.blogger.com/profile/00643996045674470081noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-22714918374356668582012-07-01T18:21:51.811+01:002012-07-01T18:21:51.811+01:00http://mirosol.kapsi.fi/varasto/boxes/bozz.jpeg
H...http://mirosol.kapsi.fi/varasto/boxes/bozz.jpeg<br /><br />Hand drawn. Sounds just amazing.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-4753576094236743782012-05-27T11:28:38.618+01:002012-05-27T11:28:38.618+01:00Tested my build today, and it's good. Tried a ...Tested my build today, and it's good. Tried a couple of different transistors, but 2N2222A/2N3906 from Aaron Nelson's schematic seem to work and sound the best.<br />+mmirosolhttps://www.blogger.com/profile/02400327798106357876noreply@blogger.comtag:blogger.com,1999:blog-6847048658257278783.post-11652304351178661402012-04-09T21:08:52.168+01:002012-04-09T21:08:52.168+01:00Melx has built this one a number of times (you can...Melx has built this one a number of times (you can find a link to his blog in my links), and I think timmy on here has built one too.IvIarkhttps://www.blogger.com/profile/08416945174853142251noreply@blogger.com