Ok, it seems that the grey wire from the power terminal is actually on the ground lug of the board and the black wire is now the 12 volts wire. Al other connections seem to be right. You might want to check the RCA's with a multimeter. Hum is often a problem interrupted ground connections.
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SurfGuitar101 Forums » Gear »
The Surfy Bear Fet Reverb
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Joined: May 04, 2014 Posts: 734 
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Posted on Sep 18 2017 09:46 AM
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Joined: Sep 17, 2017 Posts: 3 |
Posted on Sep 18 2017 09:48 AM
Hi John, I found a 12v 5a laptop charger in my cupboard and it has fixed the hum! I then had a buzz but that was solved by grounding the reverb pan to the chassis. Now it is hum free and very quiet. Thank you all for the quick responses and solution. |
Joined: Dec 20, 2012 Posts: 178 Oklahoma 
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Posted on Sep 28 2017 08:21 AM
Does anyone know a source for #47 12V bulbs? I had posted a while back about my bulbs getting hot and then burning out.....turned out they were 6.3 volt bulbs which is all I can find.....I need one that can withstand 12 volts. So for those who chose to add a light and went the Non LED route.......what are you guys using? —If you want the ultimate,you gotta be willing to pay the ultimate price. Brett |
Joined: Sep 11, 2007 Posts: 668 Sonoma, CA
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Posted on Sep 28 2017 08:22 AM
Auto parts store? |
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Joined: May 19, 2015 Posts: 10 Hermosa Beach, CA
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Posted on Sep 28 2017 08:39 AM
Latherman87 wrote:
the 14V version is the type 756 bulb. Google that for a local source. |
Joined: Nov 08, 2016 Posts: 9 Geneva 
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Posted on Sep 28 2017 08:56 AM
Latherman87 look in a car shop to find a 12v bulb The Robin's Movie Soundtracks Surf Band |
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Joined: Dec 20, 2012 Posts: 178 Oklahoma
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Posted on Sep 28 2017 08:58 AM
Awesome! Thanks for the replies you guys! My poor reverb hasn't had any light for the better part of a year! —If you want the ultimate,you gotta be willing to pay the ultimate price. Brett |
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Joined: Nov 08, 2016 Posts: 9 Geneva
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Posted on Sep 28 2017 10:03 AM
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The Robin's Movie Soundtracks Surf Band |
Joined: Sep 10, 2017 Posts: 8 |
Posted on Oct 01 2017 06:11 AM
Hi there! I just finished building mine and it sounds awesome, an incredible improvement over the FRV. For now it's sitting in an old empty Big Muff. I still have a little bit of trebly noise in the background, and when i touch the Mixer potentiometer (it doesn't have a knob yet) i get a bit of crackling. Maybe it's normal ? A huge thank you to the guys of Surfy Industries and to the awesome people here! |
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Joined: May 04, 2014 Posts: 734
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Posted on Oct 01 2017 01:25 PM
Aldersea wrote:
Aldersea, you should check the grounding of the pcb and connectors to the metal case to find out what causes the crackling when you touch the metal of the mixer pot. Must be something trivial since it already functions. |
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Joined: Aug 18, 2016 Posts: 10 |
Posted on Oct 04 2017 06:27 AM
Almost done and looking at my 12v drill sitting next to it made me think. Anyone do this with a battery? |
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Joined: May 04, 2014 Posts: 734
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Posted on Oct 04 2017 06:58 AM
obses4sail wrote:
You can use a battery, but it has to have quite some energy stored to make it reliable. A power tool battery pack might work and it's the cleanest power you can get. |
Joined: Mar 11, 2011 Posts: 819 Semass
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Posted on Oct 04 2017 10:22 PM
Featured with my frankenjazzy and 54 600. Pre champ. |
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Joined: Aug 29, 2017 Posts: 35 |
Posted on Oct 08 2017 04:51 AM
I’m totally digging the Surfy Bear. I’m working on two kit units now, one reverb in a a small enclosure and another combined with a Surfy Trem. Will post here when it’s finished. Kudo’s to Björn for this clever design. Meanwhile, I don’t know if someone already mentioned it, but for those who like to flip around the effects order (Trem before reverb or reverb before Trem), here is a tip. Musikding (and probably many other part suppliers) offers this PCB board. It’s small and cheap. And all you need extra is a mini toggle switch or, if you prefer a DPDT switch. https://www.musikding.de/Easy-Order-Switching-Platine-3PDT_1 |
Joined: Jul 06, 2010 Posts: 592 Stockholm 
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Posted on Oct 08 2017 05:35 AM
Cool Mischa |
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Joined: Aug 29, 2017 Posts: 35 |
Posted on Oct 13 2017 04:23 PM
It took longer to build than I hoped for but here is finally my Surfy Bear Fet Reverb project. I aimed for a small, efficient and good sounding version to replace my vintage unit for live gigs. It was a pain to make all the parts fit in a tiny 1590B enclosure and besides some artwork mistakes I was sloppy with my soldering. I’m still not finished. It still needs a bezel for the led and the tank needs to go under my pedal board which will be a challenge on its own since I need to saw off some aluminum edges to make it fit and sit safe. But so far so good. I have to say that I am very pleased with the result. The reverb sounds awesome. Thanks to Kinski for his idea to make a second mix knob. His discription how he did it was very helpful. I did the cap mod (470 uf) to give the reverb some extra low end. A small buffer circuit is also installed in the enclosure. I think this helps to bring back some higher frequencies on the dry signal at higher mix settings. For unknown reasons I blew a buffer in the build process. To avoid throwing another one away I decided to give it the right amount of voltage that it needs by installing a buck voltage regulator in the box as well. A miracle that it all fits. Here are some photos. Please don’t criticize my wiring job, I know it’s a rats nest and some soldering is very amateurish
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Joined: Aug 29, 2017 Posts: 35 |
Posted on Oct 13 2017 04:28 PM
And here two more... |
Joined: Jul 14, 2015 Posts: 472 Near Atlanta, GA
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Posted on Oct 13 2017 05:26 PM
Hi Mischa, That's an impressive unit. You've done some fine work putting it all together in such a small space with the additional mixer and buffer circuit, and it looks sensational. —-Tim |
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Joined: Aug 29, 2017 Posts: 35 |
Posted on Oct 13 2017 06:56 PM
SilverFlash wrote:
Thanks Tim! It was a challenge to get it all in there. Good thing is there is no space left for any rats... |
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Joined: Aug 29, 2017 Posts: 35 |
Posted on Nov 06 2017 10:09 PM
Damn, I feel like an amateur, which I am. I hope I can get some advice. I was working on a switch to select different caps and I must have wired something completely wrong. While testing, only dry signal came out and suddenly it changed into a bad smell. I pulled the plug as fast as I could but I think I was too late. After rewiring back to original state no luck. When I shook the tank a bit I did hear the springs splashing but they sounded distorted. Luckily I had another board laying around (which is supposed to go into a trem/verb combination. It’s in the initial enclosure for the time being now and everything is back to normal (even the cap switch works great) but it would be such a shame to throw the first board away and have to order a new one. Any chance that I can fix the board or do I just have to face the fact that it’s a goner? |
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