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SurfGuitar101 Forums » Gear »

Permalink SurfyTrem DIY builds and FAQ's

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Cloudy_sky wrote:

Bjorn, do you use another speed pot value in pre-built trem pedals? Or my speed pot is faulty? I can post a video of a LED blinking.

Hello
The circuit for the oscillator is a little different for the kit.
To get lower speed you can use a larger value for the pot or a series resistor.
/Björn

Thank you! I'll try 250 or 500 kOhm reverse log pot, I hope this will be enough for me, since I don't need to go super slow,

I really appreciate your work, reverb/tremolo combination sounds killer. Keep making great pedals!
bjoish wrote:

Cloudy_sky wrote:

Bjorn, do you use another speed pot value in pre-built trem pedals? Or my speed pot is faulty? I can post a video of a LED blinking.

Hello
The circuit for the oscillator is a little different for the kit.
To get lower speed you can use a larger value for the pot or a series resistor.
/Björn

There have been a couple of posts about changing the pots or adding additional resistance for slower speeds:
https://surfguitar101.com/forums/topic/28106/?page=7#p419277
https://surfguitar101.com/forums/topic/29398/?page=9#p414688

Well, my SyrfyTrem suddenly died Sad LED is constantly lit and no tremolo, but the sound is there. One of opto thingies inside is also constantly lit.

Cloudy_sky wrote:

Well, my SyrfyTrem suddenly died Sad LED is constantly lit and no tremolo, but the sound is there. One of opto thingies inside is also constantly lit.

It seems like the oscillator stopped working.
Try to clean the terminals for the Speed pot. You can brush with methanol to get rid of excessive flux on/under the board.

I tried, but no, still not working (i can post images of the soldering, but I did a VERY careful job and it was working and sounded perfect). It was in a closed box, so i can't did nothing to damage it.

Best regards,
Stan

bjoish wrote:

Cloudy_sky wrote:

Well, my SyrfyTrem suddenly died Sad LED is constantly lit and no tremolo, but the sound is there. One of opto thingies inside is also constantly lit.

It seems like the oscillator stopped working.
Try to clean the terminals for the Speed pot. You can brush with methanol to get rid of excessive flux on/under the board.

Cloudy_sky wrote:

I tried, but no, still not working (i can post images of the soldering, but I did a VERY careful job and it was working and sounded perfect). It was in a closed box, so i can't did nothing to damage it.

Best regards,
Stan

Ok, please mail me a few pictures of your build.
Please contact service at Surfyindustries.com and we will work something out.
/Björn

thanks to everyone for this very helpful thread.

I am building a combined reverb/trem in a 6G15 style box, but I'm constrained on size of the control panel, due to the size of the aluminum sheet I've picked up.

I wanted to have the extra resistor for a slower trem speed. Was planning therefore to use push-pull SPDT pots for both the blackface/brownface switch, and for the 'slow' resistor (although in this case I guess I could also use SPST and short out the resistor when not required).

But I can only find push-pull pots for the B50k pot, and not the C100k, which IIRC is reverse log. Does anyone know of a source for the latter?

Looking for help, please... Re: mounting/anchoring the PCB to a Hammond 1590BB enclosure.

Like most, I soldered the Speed and Intensity pots directly to the PCB. As such, the PCB is not firmly anchored to the enclosure. Sure, putting the knobs on the pots holds everything in place but I would like to anchor it better.
The 4 screw holes in the PCB are for anchoring, yes, but that would mean 4 additional holes in the enclosure to install those screws.

What alternatives are there for this? Any suggestions?

Thank you in advance!

Lorne (Shake_n_Stomp)
Mai Tai Surf: https://www.facebook.com/maitaisurf/

formerly of The Hang-Ten Hangmen: https://www.facebook.com/HangTenHangmen/

already five years for the surfy bear and one year now with the surfy trem
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shake_n_stomp wrote:

What alternatives are there for this? Any suggestions?

Pcb standoffs. You can glue them inside the enclosure to support the circuit board. There are several types and heights:

https://i.postimg.cc/3Rvjk0QP/3880.jpg
https://i.postimg.cc/fyQcmWwk/s-l300.jpg
https://5.imimg.com/data5/HA/BB/MY-1388024/pcb-mounting-acessories-500x500.jpg

(Sorry, I couldn't post images, only links.)

Last edited: Jul 21, 2019 04:01:32

Yeah! Thanks to a very kind member of this forum I managed to get a SurfyTrem kit and he even sent it from Canada to Germany. My initial plan was to build the kit into an old Fender Sidekick amp, but the amp for now still resides at my former girl friend so I decided to build an interim solution.

It came out better than expected. I chose a Hammond 1590K430 which has some weight to it and is close to mxr box size. The pcb needed to be trimmed a bit, I just cut the corners, one could do it nicer ;) For the paint I went for some matte black fake Tolex style, done with a paint roller.

The "decal" still is just a digital laser print on special paper but will become a real self adhesive metallized decal when I can find a business in my town that can do that. For now it´ll do, though. The knobs will become some original Fender brown/blonde knobs or like on the Fender Blender stomp box. Those old style Rolands are just a stand-in.

BTW, it sounds crazy good! It were nice though, if one could switch off the preamp eq curve as it adds a lot of honky mids at certain frequencies.

Thumbs up to Surfy Industries!

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Last edited: Sep 10, 2019 13:58:49

damn you did a good job!

-Pierre
The Obsidians! (Ottawa surf)
The Obsidians debut EP

Thanks Smile And again thanks for selling the kit...

Bump.

Are these kits no longer available? No I can't see anything on the website.

Snufkino wrote:

Bump.

Are these kits no longer available? No I can't see anything on the website.

They have not been available for quite a while. The finished pedals are though and for not much more than the kit + other supplies would have cost you, plus all of the work is done for you!

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

I'm just completing a build... and need a bit of help problem-solving

I used a SPDT switch to add in a resistor to the leg of the pot as shown earlier. But it doesn't work. The switch works ok, seems to give 500K across the poles as designed. I'm pretty certain the switch should work as shown, in the diagram, but no dice. Any ideas? I attached it to the outside leg of the speed pot, as suggested. You can't see the wiring of the swtich well in the pic but the connections are exactly as in the drawing.

Everything is working pretty well, apart from an earth buzz i need to sort (stops when I touch the chassis), all my reverb comes in very early in the pot travel

speed seems to work the wrong way around (low speed = fully clockwise)... is that how everyone else's works? Have I got the pot flipped? Would that stop the switch working?

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Here's the switch. Grey wire is to l/h leg, black to middle, just like my diagram...
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Last edited: Feb 23, 2020 09:57:16

this is a close up of the pot. the right-hand connection, as you're looking at it, goes to the SPDT switch.

Note we see the back of the board, and the pot is kinda doubled back on itself.

(Sorry it looks so dirty, it's sellotape residue, attempting to clean it off damaged part of the UV laminiate on the aluminium control panel)

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Last edited: Feb 23, 2020 10:05:51

Hi folks,
Finally I got the chance to finish mine ... thinking about keeping it and selling my factory-built one.

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When you have to shoot ... shoot! Don't talk.
"Los Grainders" www.facebook.com/losgrainders
"Planeta Reverb" www.facebook.com/planetareverb

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