Quick note about the wiring. Just like the Shin Ei 6TR Fuzz Wah I posted the other day, the fuzz comes before the wah, so you'll wire it up according to the dual effect wiring as shown in the offboard wiring tab. You'll notice instead of making this on 1 massive board I opted for 2 separate boards. This will give you more options for placement in an enclosure, by preventing it from being 1 massive board.
i want to make the shen ei companion wah with the siren hurricane effects. that would be awesome. checked one out in a pawn shop back in 1987 went to the bank and my buddy was walking out with it. i sure would like to make one of those
ReplyDeleteIf you can find the schematic I'm down for making the layout.
DeleteIve actually got a real one of these on the workbench. The guy has taken it out of the wah enclosure and gone with a hammond style. Its developed a nice hum apparently after years of good service. Proding around as we speak.
ReplyDeleteI have built the fuzz circuit and it works awesomely So it can be tagged as verified. A minor edit is needed regarding the Balance pot wiring. From top to bottom the wiring should be Balance 2, 3, 1.
ReplyDeleteNot sure which schematic was used for the layout but it seems to be more similar to the Superfuzz and not the 8TR schematic that I was able to find online although the differences appear to be minor. Loads of saturation and volume on tap! Thanks for putting these layouts together. Very much appreciated.
cheers man. updated the layout. i'll have to check the schematic i have, but remember during this time there were different variants, so it could just be a different version.
DeleteGreat the layout looks good. Ha yeah there does seem to be a lot of variants. Either way it sounds really good!
DeleteIs there a part list available and detailed schematics ??? Im interested in making one :)
ReplyDeleteI too can verify the fuzz section, it's awesome. But I can't get the wah section to work. One thing I notice is that the transistor symbols are reversed, compare with the fuzz section. I've measure my components and ran a knife blade between the copper tracks to eliminate any shortings. Still not ok. So, either my build is off or the wah section is not yet verified. I have previously built the v847 from this site, and didn't have any issues there. Cheers :-)
ReplyDeleteShouldn’t the 470 Ω resistor from E go to ground? It’s hanging in free air in the diagram.
DeleteYes I think you’re right, that can’t be correct obviously. And I would expect the emitter to be grounded via a resistor so it makes sense
DeleteYep, that’s it. I just now bridged the loose end to ground and it’s up and running. Took me 3 months to solve this :-D
ReplyDeleteGreat spot and glad you got it going 👍🏻
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