Happened to spot one on ebay for mere 250 usd. A bargain. For this layout, i omitted the buffers and electronic switching. 30K pot value may be hard to source, so one could try 50k pots for all of them. Original unit has 2SC2240BL transistors which are low noise devices with BCE pinout and hFE range of 200-700. I think 2N5088, 2N5089, BC549 or BC550 with gains at 400-500 should do just fine. The transistor image is for 2N* devices, so mind the pinout and experiment.
Here's a collection of vero (stripboard) and tagboard guitar and bass effect layouts that we have put together covering many classic and popular effects in growing numbers. Many of these have been posted on freestompboxes.org, so check that site out for great discussions on building your own effect pedals. Enjoy the builds and please also visit us on Facebook and Twitter
Showing posts with label Nobels. Show all posts
Showing posts with label Nobels. Show all posts
Thursday, 5 September 2013
Wednesday, 12 June 2013
Nobels DT1 Distortion
Not too much info around on this beloved cheapo pedal, but it seems to be of fairly good design. For the layout, i've omitted the input buffer to keep the size down. The output buffer has 2SK30-style pinout for couple of reasons. First, the original (schematic states K222E) is not that common. Second, it's just a buffer, so you should have exactly the same results with any NPN BJT in its place. Third, some of you might really want to try this with a BJT instead of JFET to preserve the stock they have. I thought about omitting the output buffer too, but the tonestack has vref voltage in it, so there has to be something to put that out before the output.
Straight-as-straight-can-be Distortion. A must-have for every Hardrock or Heavy Metal player.
Straight-as-straight-can-be Distortion. A must-have for every Hardrock or Heavy Metal player.
Tags:
Distortion,
Nobels,
Verified,
Vero
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