Neovibe Sounds...

[SteveB]

I have been experimenting with reflected light vs direct light, & recently got some Silonex NSL 7350's from Small Bear. I cut a thin piece of aluminum sheet, polished it with car polish, & glued it to the inside the film cansiter top. The reaction of reflected light is a bit different that the way I had it before so I changed R49 back to 4.7k. My lamp bias measures 391 ohms from lamp driver emitter to ground. This seems to be the sweet spot I like.

Yeah, the bulb is crooked, but it works. Radio Shack 12V/24ma.

All samples used a Fender Strat made of various Fender parts & a Fender Princeton Reverb amp miked with a SM57 into a Korg D1600 recorder. No EQ, additional effects or post-processing other than fades & limiting to even out volume differences. See link at end of post for page showing pedal & amp settings.

http://www.sbkustoms.com/music/fx/med_speed-full_intensity.mp3
Medium speed with intensity turned up full. Neovibe into Fulltone Fulldrive 2. Guitar volume turned down a bit.
http://www.sbkustoms.com/music/fx/med_speed-less_intensity.mp3
Medium speed with intensity turned down a bit. Neovibe into Fulltone Fulldrive 2. Guitar volume turned down a bit.

http://www.sbkustoms.com/music/fx/hey.mp3
Neovibe into Marshall Shredmaster. Guitar volume turned down a bit. Same Neovibe settings as previous clip.

http://www.sbkustoms.com/music/fx/dirt%20to%20fuzz.mp3
Neovibe into Marshall Shedmaster with Fuzz. Guitar volume turned down a bit, & turned up full around 0:24. Fuzz comes in around 0:43. Signal path is DIY Fuzz into Neovibe, & then into Shredmaster. Same Neovibe settings as previous clip.

http://www.sbkustoms.com/music/fx/fuzz%20to%20funky.mp3
Neovibe into Marshall Shredmaster with Fuzz. This one starts with the fuzz on, & switched off around 0:39. Same set up & Neovibe settings as previous clip, but slowing down the speed towards the end.

http://www.sbkustoms.com/music/fx/lo-intensity-fast-slow.mp3
Neovibe intensity turned down a third, with speed starting out 3/4, & then slowing down. Neovibe into DIY Screamer in LED clipping mode. Guitar volume turned down a bit.

http://www.sbkustoms.com/music/fx/ramp2.mp3
Neovibe intensity turned down a third, with speed starting out full, & then slowing down & speeding up. Neovibe into DIY Screamer in LED clipping mode. Guitar volume turned down a bit.

http://www.sbkustoms.com/music/fx/slo-to%20fast.mp3
Neovibe intensity cranked starting with minimum speed & increasing to maximum speed & back down. Neovibe into DIY Screamer in LED clipping mode.

http://www.sbkustoms.com/music/fx/Neovibe.htm

Steve

[John Lyons]

Sounds fantastic Steve! Lush and tons of creamy mojo.
That really nails the hendrix tone.
Nice playing as well!
I need to build another one....

john

[mudmen]

Great tone! Which PCB layout did you use? It's not the GEO/GGG one, right?

[R.G.]

Great tone! Which PCB layout did you use? It's not the GEO/GGG one, right?

It is the ancestor to the GGG one. It's actually the ...first... Neovibe layout. As you can see it's Vibe A, version 1.0. That's the one I first posted on usenet, shortly before there WAS a web. I believe that the current GGG one is Vibe H. Since the first one, I've moved the mounting holes into the board area, and cleaned things up a bit, allowed more space for transistor leads, etc. But it's one of the Neovibes.

[SteveB]

Sounds fantastic Steve! Lush and tons of creamy mojo.
That really nails the hendrix tone.
Nice playing as well!
I need to build another one....

john

Thanks John! But, I'm sure some people will still disagree. Regardless, it's as close as I've gotten, & I'm okay with that. Keeping the lamp bias on the high side was what made it happen for me.

Steve

[John Lyons]

I can't think of a better vibe sound than the clips above.
I also can't believe that out of all the Neovibe posts and builders no one but "mudmen" even commented.
Thanks for the clips, aces I say!

john

[JOHNO]

That vibe sounds sweet steve great work. I did the same thing with my vibe IE experimenting with direct and reflected light and found that reflected light sounded smoother to my ears. Those clips will definitely inspire some more folks to build the vibe so get ready for some more debug threads.

[dbell76]

What emitor-base voltages do you have on Q4, Q6 and Q8, please? I have the very "popular" problem with 0.4V here only...:-/ Thanks

[Jim Jones]

Man, that sounds REALLY GOOD!  I should have experimented more with photocells I think.  My build sounded good...but not that good. 

Jim

[DougH]

I'm late to the party and this is slightly off-topic but what is that song you are playing in the two medium speed clips at the top, Steve? My God, that is beautiful!!

[sean k]

Man, I just gotta build me a neovibe now, holy cow! I've readed (forgottenhow to spell red, as in red out  ) and it seems the set up around the lamp driver is the way important thing to worry about but I'm also wondering what the stuff is on the LDR's is. I suppose I'll get the data sheet for the NSL 7350's and see if I can find something similar locally. Fast turn on I know but it's the R at high and low light width and the dark R.

Nice playing Mister!

[SteveB]

What emitor-base voltages do you have on Q4, Q6 and Q8, please? I have the very "popular" problem with 0.4V here only...:-/ Thanks

I really don't know. I guess I've been lucky not knowing.

Steve

[SteveB]

I'm late to the party and this is slightly off-topic but what is that song you are playing in the two medium speed clips at the top, Steve? My God, that is beautiful!!

Cool, glad you liked it! It's a part of one my own songs. I'll PM a link to you later on.

Steve

[dbell76]

What emitor-base voltages do you have on Q4, Q6 and Q8, please? I have the very "popular" problem with 0.4V here only...:-/ Thanks

I really don't know. I guess I've been lucky not knowing.

Steve

Couldn't you please measure the voltages and let us know? It would really help, because your unit sounds great!

[yeeshkul]

The 391 ohms lamp bias Steve posted is the most important value that has major influence of his sound. I haven't heard about tweeking the phase stages. I just know that it is difficult to get the right voltages there with low impedance DMM ...

[Solidhex]

Awesome samples! Time for me to build another neovibe!

--Brad

[dbell76]

The 391 ohms lamp bias Steve posted is the most important value that has major influence of his sound. I haven't heard about tweeking the phase stages. I just know that it is difficult to get the right voltages there with low impedance DMM ...

I agree, but I do have problems with my unit, so I would like to see what should the voltages be...

[Mark Hammer]

Did you see the sleeping bag?  I'm sure it was here last night.  Awww man, where'd all this mud come from?  Who's that playing up there now?  Hendrix?  Cool.  I dig his tone.

[bpier]

SteveB, what is the small electrolytic cap near C24 ? I suppose it is attached to the alimentation ? Regards.
Pierre

[dantahoua]

Hello! I just finish one neovibe and it's great, need some tweaking. There is one question that puzzle me: how do you manage to have The 391 ohms lamp bias ? Do you use a 500ohm trimpot for bias (I have a 200 ohm). I mesure between Q13-E and ground (the O point on the GGG board) and I have mesure from 68 to 270ohm... Do I measure to the good point?