SG101 on the Web

Follow SurfGuitar101 on Twitter

Photo of the Day
Shoutbox

Freevibration: yamaha SGV
165 days ago

Freevibration: yamaha SGV
165 days ago

CreepBeat: 2020 sucks
160 days ago

Bango_Rilla: Bango is going bananas in quarantine!
160 days ago

Bango_Rilla: Big Grin Big Grin Big Grin Big Grin
159 days ago

ChuckEMong: would a link to an r-rated video with a good tune be out of line here? Whatever
124 days ago

Emilien03: helloooooo! Big Grin
104 days ago

Clint: “Surf Music Videos” channel on YouTube. If you like, please subscribe. Thanks! https://www....
90 days ago

oestmann: Hello!
14 days ago

Mrblob4: Help, quarantine is hell
7 days ago

Please login or register to shout.

Current Polls

No polls at this time. Check out our past polls.

Current Contests

No contests at this time. Check out our past contests.

Donations

Help us meet our monthly goal:

70%

70%

Donate Now

Cake September Birthdays Cake
SG101 Banner

SurfGuitar101 Forums » Gear »

Permalink The Surfy Bear Fet Reverb

New Topic
Goto Page: Previous 1 2124 125 126 127 128 Next

Wrong polarity should not result in overload.

You can use an ohm-meter to make sure you don’t have continuity between ground and the MOSFETs.

I guess there is something wrong with the wiring or the soldering joints.

surfybear.weebly.com

As Björn said (in other words), you most likely have a shortcut between power+ and power- (ground)

You can test this by not plugging in the adapter in the wall socket and then check (in the continuity/beep modus of your multimeter) if there's a connection between + and - (or ground).

This can occur in many places. For ecample if the (red) power wire inside the pedal is burnt somewhere by accident from soldering something nearby and thus bare and touching the chassis, creating a shortcut.

Does anybody know what the self-adhesive conducting foam tape is that is used to mount the SB to the chassis, and where to get it?

I can find thermal transfer tape, and thin electrically conductive tape, but not the thicker spongy and electrically conductive tape that is used on the SB. I don't know the proper name for it.

Specifications would be helpful to track down a source.

Downed_Aviator wrote:

Does anybody know what the self-adhesive conducting foam tape is that is used to mount the SB to the chassis, and where to get it?

Hi Downed_Aviator

That type of tape can usually be found in electronic component stores or pc parts stores.

If you contact me at Surfy Industries website, I can send you a piece for free!
/ Björn

surfybear.weebly.com

bjoish wrote:

Downed_Aviator wrote:

Does anybody know what the self-adhesive conducting foam tape is that is used to mount the SB to the chassis, and where to get it?

Hi Downed_Aviator

That type of tape can usually be found in electronic component stores or pc parts stores.

If you contact me at Surfy Industries website, I can send you a piece for free!
/ Björn

Thanks Björn. Can you confirm that the tape is electrically conductive and not just thermally conductive?

It's the definitely NOT electrically conductive. It isolates the FETs from ground and at the same time cools them by being thermally conductive towards the chassis surface. (otherwise you could just as well have used regular thermal paste)

Last edited: Feb 03, 2020 15:35:14

Thanks again for all your help! I will try to check all the issues you brought up.
Helmut

j_flanders wrote:

It's the definitely NOT electrically conductive. It isolates the FETs from ground and at the same time cools them by being thermally conductive towards the chassis surface. (otherwise you could just as well have used regular thermal paste)

Great, thanks for the clarification. I know what to get now.

IT`S ALIVE! And it sounds killer!
Thank you for your help, Björn and j_flanders!
The next step is to cover the 6G15-style-cabinet I built with tolex and assemble the whole thing. It´s going to be fawn tolex and a wheat grill, inspired by the FSR "Fawn" limited edition amps Fender has introduced lately.

Thanks again!

(pretty much like this:)
image

Last edited: Feb 06, 2020 15:16:21

Here are some pictures of my Surfy Bear.
I built it 3 years ago or so.
It took me a year to box it up. The first year I just used it as is, just the bare circuit with the controls and stuff dangling around (I only play at home)
Two years on and I still haven't gotten around to do the logo and lettering for the controls...

The university nearby has a publicly accessible lab with 3D printers, laser cutters etc., where you only have to pay for the used materials.
I plan on doing the front logo and lettering in (off) white laser cut plexi material or something. Similar to the logo's on the grillcloth of speaker cabs.

The toggle switch on the left is to activate the C10 mod, the one on the right is a kill-dry switch for when I want to use another dry/wet mixer (usually my Boss LS2).
image

image

The rectangular box below the pedals contains two reverb tanks.
On the side there's a switch to choose between a long 4AB3C1B or a short 8AB3C1B pan.

image

image

I wanted to make the box containing the reverb pans as small as possible. There's only a couple of millimeters clearance on the inside. It's still pretty big though.
There was not enough clearance for RCA jacks, so I soldered the wires from the toggle switch directly to the input and output of each tank.
The bottom is a heavy piece of multiply wood.

The metal box cover is from an old VCR (video recorder).
I measured the minimum required inside space, then went to the local recycling park and started measuring metal housed electronics stuff.
The surveyor came up to me asking me what the **** I thought I was doing. Smile
I tried explaining to him but in the end he said: just take what you need.
At home I took the cover from the old VCR, cut it up and bent it into a cover for the tanks. DIY style... Smile

I covered the pedal and box with Fender tweed. On the sides I put some tropical hard wood. The rest of the wood was used for a terrace in the garden. (Well, actually it was the other way around...)

image

The grey pedal on the right is my Surfy Trem by the way. It as well has been waiting for two years for its graphics and logo. One day...
It's covered with some fabric I cut out of an old pair of trousers.

image

The rest of the plywood, trousers and an old miniskirt of my girlfriend (for grillcloth) was used for a small speaker cab.
The white 'piping' is simply some electrical wire...

Originally I had the idea to house the Surfy bear and trem inside this kind of box. But then I changed my mind because I wanted to keep the pedal and reverb pan separate so it ended up being a small speaker cab:

image

image

Both Surfy Bear and trem sound great and I use them pretty much every day.

Last edited: Feb 06, 2020 17:24:46

Wow, nice work - a perfect match for that Gretsch amp!

Before I startet my kit, I also thought about using a short and a long tank with a switch. Maybe you or someone else could help with the wiring? I´m pretty sure it´s not that complicated, but I´m still learning...

  • Did you use a 2 pole ON-ON switch?
  • Are both return signals from the two tanks soldered to the REV IN joint together? Or would it be easier to use 4 rca-jacks after the switch?

I used a 4PDT (ON-ON)
4 pole: in-signal, in-ground, out-signal, out-ground
2 throw: to switch between 2 pans.

Inside the box containing the two pans, there are 4 cables after the switch. Normally 4 RCA jacks, but not enough room in there so I soldered them directly to the pans inputs/outputs

Last edited: Feb 10, 2020 13:11:35

Thank you! I might come back for more questions, once I star this modification. Right now I´m finishing my cabinet, but I´m shure I will hook up a second tank in the near future as soon as the cosmetics are done.

Another question: I´m guessing the sticker for the faceplate I bought with the kit has the same dimensions and measurements for all the potis, jacks etc like the original Fender unit?
So a faceplate like this should fit?
https://www.tubeampdoctor.com/generic-faceplate-stand-alone-reverb-unit-6g15

There are some really super Surfy Bear builds on here, but here is a fun little video of my basic toolbox build.

I just wanted to share my SurfyBear, since I finished it yesterday. I´m not too happy with the color of the grill cloth - maybe I´ll change it for a silver one sometime.
All in all I´m pretty proud how it turned out. It was definetly a very fun project! Sounds great, thanks Björn!

image
image
image

Last edited: Feb 13, 2020 08:03:33

Ahoy, new member here. I'm about to start my build and have a question about the color switch that Smid posted about elsewhere. Can anyone recommend what capacitor types to use? Ceramic, film, silver mica, tropical fish? This will be my first serious project and the forum has been very inspiring! Thanks!

Little_Paul wrote:

Ahoy, new member here. I'm about to start my build and have a question about the color switch that Smid posted about elsewhere. Can anyone recommend what capacitor types to use? Ceramic, film, silver mica, tropical fish? This will be my first serious project and the forum has been very inspiring! Thanks!

In this application it matters very Little_Paul... Cool
You can use whatever type you'd use for the tone control in a guitar.
Here's the thread you speak of by the way:
https://surfguitar101.com/forums/topic/28840/?page=1
Here's a good article about different types of caps and their so called tone:
http://zerocapcable.com/?page_id=224

Last edited: Feb 23, 2020 10:26:24

BUYER BEWARE:
It has come to our attention that some have been building SurfyBear units from the kits and are selling them on ebay and other sites. We have had complaints from unsuspecting buyers of these that they are not working, often because they are not assembled well or were assembled incorrectly. We cannot honor any warranty or support on these units, so be warned and purchase at your own risk.
For just a little bit more than the asking price of these units, a finished pedal manufactured by Surfy Industries can be purchased, including the lifetime warranty if the product is registered online.
Thank you SG101ers for all of the support!

http://www.satanspilgrims.com
http://www.facebook.com/pages/Satans-Pilgrims/8210228553
https://satanspilgrims.bandcamp.com/
http://www.surfyindustries.com

Hello reverb addicts! Has anyone tested the Surfy Bear Compact versus the Classic/Metal version? What are the differences in the sound, if any?

https://www.youtube.com/watch?v=SZ0ekYHUEdQ

Hi, I understand the DIY kits are no longer for sale, does anyone here have a spare they will be willing to sell to me? Smile
Thanks a lot surfers Smile

Goto Page: Previous 1 2124 125 126 127 128 Next
Top