Verellen Amplifiers - Big Spider fuzz

eniacmike · Post by **eniacmike** » 24 Jul 2010, 21:06

Bass fuzz
http://www.verellenamplifiers.com/verellen.html
their website
http://www.effectsdatabase.com/model/verellen/bigspider
some gutshots here

This pedal seems really similar to the acetone fuzz master fm-2.
http://members.fortunecity.com/uzzfay/f ... html#fm-2s

I am having trouble making out the transistor values on gutshots, they seem strange to me.
Also the values of the big red caps. I think all electrolytics are 10µF.

lolbou · Post by **lolbou** » 24 Jul 2010, 22:03

eniacmike wrote:I am having trouble making out the transistor values on gutshots, they seem strange to me.

The one on the left is 2SK30A. The others are 2SC828A. Only the bold part actually appears.

eniacmike wrote:Also the values of the big red caps.

More difficult indeed...

analogguru · Post by **analogguru** » 24 Jul 2010, 23:21

Transistors are 2SC828A-R. Configuration and footswitches let me suspect, that it could be a clone of the Ibanez - Standard Fuzz:
http://www.effectsdatabase.com/model/ib ... uzzmachine

Schematic for the Ibanez - Standard Fuzz:
http://analogguru.an.ohost.de/193/schem ... rdFuzz.gif

What a sophisticated new technical master stroke from the solder-jockey scene.

analogguru

lolbou · Post by **lolbou** » 25 Jul 2010, 08:07

analogguru wrote:Transistors are 2SC828A-R.

Missed the "R" parameter on that one...

I've been looking what it stands for : 180 < Hfe < 360...

eniacmike · Post by **eniacmike** » 25 Jul 2010, 19:26

Thanks guys for getting on this so fast! I'm excited to order some parts and try this circuit out.

I wasn't expecting too much innovation as this is the first and only pedal from this manufacturer, but The reports are that this effect works great for stoner/doomy Bass so I'm interested to try it out.

lolbou wrote:
analogguru wrote:Transistors are 2SC828A-R.
Missed the "R" parameter on that one... I've been looking what it stands for : 180 < Hfe < 360...

I don't know what it means but small bear stocks them!

lolbou · Post by **lolbou** » 25 Jul 2010, 19:39

eniacmike wrote:I don't know what it means

hFE stands for the small signal Forward Current Gain (from wikipedia). The values will affect the overall gain for each stage, so if you want a close result for your build this parameter is important indeed.

sunburnedgoat · Post by **sunburnedgoat** » 25 Jul 2010, 21:26

This dude makes awesome amplifiers - that is his bread and butter, not pedals. They are affordable, p2p, hand wired monster tube amps. So cut him some slack before breaking out the torches.

candletears7 · Post by **candletears7** » 26 Jul 2010, 05:14

FWIW I just fixed up an Ibanez Standard fuzz for a guy and the thing seemed real flimsy compared to what this Big Spider looks like. Wooden side walls rock. I couldn't give a hoot if it's a clone - I know which one I'd be gigging with...

lolbou · Post by **lolbou** » 26 Jul 2010, 08:24

candletears7 wrote:FWIW I just fixed up an Ibanez Standard fuzz for a guy and the thing seemed real flimsy compared to what this Big Spider looks like. Wooden side walls rock. I couldn't give a hoot if it's a clone - I know which one I'd be gigging with...

I guess you can make one for yourself fairly easily, as strong and reliable as a pedal can be WITHOUT the wooden sides which doesn't bring anything soundwise...

sunburnedgoat wrote:This dude makes awesome amplifiers - that is his bread and butter, not pedals.

This ain't the subject at all. We don't even talk about his pedal ablilities, but about the very circuit he's been locking into these wooden-edged enclosures. And for an amp builder, as Jack Deville already mentionned here, developing a pedal is way more cost effective than developing an amplifier. Especially if the design already exists...

eniacmike · Post by **eniacmike** » 26 Jul 2010, 14:00

some more gutshots down the page on talkbass http://www.talkbass.com/forum/showthrea ... der&page=5 I can sort of see the writing on the red caps, but I can't make it out.

apprently they now have trim pots in them too.

madbean · Post by **madbean** » 26 Jul 2010, 15:23

Excess leads, burnt insulation, looks like a big fat bridge between two resistors. That's just atrocious.

Lawnchair · Post by **Lawnchair** » 27 Jul 2010, 01:58

larger panasonic looks like 104 to me.
Big help I know.

I hope that wiring is not stock. Looks like someone tried to rewire it with radio shack 22 solid. Wretch.

dune2k · Post by **dune2k** » 27 Jul 2010, 10:05

More pictures here: http://www.talkbass.com/forum/showthread.php?t=669046

And this is what the builder said about the gut shots already posted:

That is a particularly dirty gut shot IMHO, and they generally look way nicer.

analogguru · Post by **analogguru** » 27 Jul 2010, 11:20

Wow, cool.... carbon comp mojo resistors.
And look at the pcb: it´s double sided
This must be much better than the Ibanez - Standard Fuzz because the Ibanez had only a single-sided pcb.

analogguru

Steven_M · Post by **Steven_M** » 27 Jul 2010, 18:21

dune2k wrote:More pictures here: http://www.talkbass.com/forum/showthread.php?t=669046

And this is what the builder said about the gut shots already posted:
That is a particularly dirty gut shot IMHO, and they generally look way nicer.

Why is he bending the transistors like that?

dune2k · Post by **dune2k** » 28 Jul 2010, 08:20

Steven_M wrote:
dune2k wrote:More pictures here: http://www.talkbass.com/forum/showthread.php?t=669046

And this is what the builder said about the gut shots already posted:
That is a particularly dirty gut shot IMHO, and they generally look way nicer.
Why is he bending the transistors like that?

Maybe he toasted a couple and now wants to be on the safe side...I don't know...

moose23 · Post by **moose23** » 26 Apr 2013, 18:59

Few years later but got the tone cap values for this and it's a the Standard Wau Fuzz values with 120nF rather than the 100nF in Analog guru (?) schematic online. 3.3nF and 22nF caps are the same.