The Surfy Bear Fet Reverb

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SurfGuitar101 Forums » Gear »

The Surfy Bear Fet Reverb

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Mark2Bra Joined: Sep 01, 2013 Posts: 248	Posted on Jun 07 2015 12:21 PM Nice idea , Björn . Can you show us the whole system assembled? I found this photo when I was testing the rig before putting it into the cabinet. I must say that the tube amp and the Grado headphones really contribute to the old atmosphere Last edited: Jun 08, 2015 23:23:12 Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on Jun 08 2015 02:45 PM bjoish wrote: JObeast wrote: KB, The metal tank that houses a reverb spring transducer unit is plenty shielding. I'm sure it was designed with that in mind: protecting springs and all from vibration and electromagnetic fields. Yes, I in my latest build I used the pan to shield the circuit board below. You might need to experiment to decide how much shielding you need. What kind of mods did you add ? Top
bjoish Joined: Jul 06, 2010 Posts: 596 Stockholm	Posted on Jun 09 2015 03:59 PM warioblast wrote: What kind of mods did you add ? Hi Here are two prototypes I have built for showcase at the Reverb Event at the Surfer Joe Summer Festival. Inspired by suggestions and comments on this forum I have added some new features to the FET Reverb: - True Bypass - Two switchable Mixer-settings - Relay switching. - Volume control - Buffered output - C10 easy access And a Decay pot – controlling the length of reverb tail! Last edited: Jun 09, 2015 15:59:49 Top
dp Joined: Feb 26, 2006 Posts: 3546 mojave desert, california	Posted on Jun 09 2015 04:16 PM That's a sweet looking thin-rig Top
sonni Joined: Nov 08, 2006 Posts: 80 Vienna, Austria	Posted on Jun 09 2015 04:19 PM fantastic! Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on Jun 09 2015 05:46 PM That's slick ! Top
dboomer Joined: Jan 05, 2009 Posts: 262 Port Hueneme, CA	Posted on Jun 09 2015 08:16 PM How did you electrically control the decay time? I wouldn't have believed that possible with a mechanical tank. Last edited: Jun 09, 2015 22:32:45 Top
Badger Joined: Nov 16, 2013 Posts: 4536 Wisconsin	Posted on Jun 09 2015 08:50 PM bjoish wrote: Here are two prototypes I have built for showcase at the Reverb Event at the Surfer Joe Summer Festival. Inspired by suggestions and comments on this forum I have added some new features to the FET Reverb: - True Bypass - Two switchable Mixer-settings - Relay switching. - Volume control - Buffered output - C10 easy access And a Decay pot – controlling the length of reverb tail! Surfy Bear "2.0" is really looking impressive. (Love those enclosures!) — Wes SoCal ex-pat with a snow shovel DISCLAIMER: The above is opinion/suggestion only & should not be used for mission planning/navigation, tweaking of instruments, beverage selection, or wardrobe choices. Top
ocoughi Joined: Mar 15, 2015 Posts: 23	Posted on Jun 10 2015 04:20 AM Nice upgrades Bjorn! so the double-pot for the mixer is one gain for dry and one for wet? and you managed to find a good way to "gate" the reverb naturally? (sometimes simple gates are quite brutal and tends to cut too quickly...squared volume drop) The R3 will be updated to R5 soon? i wanted to order another R3 but maybe it's better to wait for the new generation? Respect. — https://soundcloud.com/anti-bypass Top
bjoish Joined: Jul 06, 2010 Posts: 596 Stockholm	Posted on Jun 10 2015 01:10 PM Thanks a lot This is so far only an experiment. I have spent tooooo much time on this build. I am probably mad Looking forward to get some feedback at Surfer Joes! The double pot makes it possible to have two mixer settings that can be selected using the foot switch. Yes, to 'gate' the reverb tail in a natural way is not easy. I have tried 5 circuits before I got something that sounds good. The basic idea for the Decay control is simple; a voltage controlled amp added after the Tone pot and triggered by the guitar signal. Ocoughi, you are right! Noise gates are normally brutal and have a squared volume drop. I use a 'precision' envelope detector for the VCA that follows the guitar signal even at low levels. And for adding a more natural touch, a small amount of the original reverb tail is added to the output signal. I will publish the schematics on my site when I get the time I dont think there will be a new board replacing the r4. Possibly there will be additional boards for the new features. See you at the Reverb Seminar at Surfer Joes, SATURDAY 20 JUNE, 14.30 - 15.30 ! Top
ludobag Joined: Jun 05, 2010 Posts: 620 at south of	Posted on Jun 10 2015 02:13 PM I want the surf Green White one Top
MelWaldorf Joined: Mar 03, 2006 Posts: 648	Posted on Jun 10 2015 03:38 PM Wow, that's really cool! Does the pan crash when you hit the foot switches? Top
bjoish Joined: Jul 06, 2010 Posts: 596 Stockholm	Posted on Jun 10 2015 03:53 PM MelWaldorf wrote: Wow, that's really cool! Does the pan crash when you hit the foot switches? Thats an interesting question. Initially I thought this was a problem so I added 'soft touch' (momentary) switches. A side effect of adding the decay feature is that when not playing, the sound from the springs are somewhat attenuated. This reduces the risk for unintentionally pan crashes. Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on Jun 10 2015 05:37 PM I wouldn't step on those beauties. Top
wfoguy Joined: Dec 11, 2011 Posts: 2127	Posted on Jun 10 2015 05:48 PM bjoish , I read your description but don't comprehend what you said. I'm going to have to become an electrical engineer to talk to you. That's ok because I love learning new things. Top
warioblast Joined: Nov 23, 2014 Posts: 98 Dijon	Posted on Jun 10 2015 06:18 PM bjoish wrote: I have spent tooooo much time on this build. You should clear your head with a Fet Tremolo project Top
kick_the_reverb Joined: Feb 26, 2006 Posts: 1337 Escondido, CA	Posted on Jun 28 2015 11:41 AM The Surfy Bear was the clear winner in the Reverb Seminar at SJSF, as a tank alternative. With the added new features (dual mix, decay control) it has some ingenious added value. People were standing in line to buy the prototypes, and both were sold. I bought a kit, of course, but not sure when will I get around to putting it together. Bjorn has done a great service for the surf music community, and is an awesome guy as well. Ran — The Scimitars Top
Badger Joined: Nov 16, 2013 Posts: 4536 Wisconsin	Posted on Jun 28 2015 04:25 PM kick_the_reverb wrote: The Surfy Bear was the clear winner in the Reverb Seminar at SJSF, as a tank alternative. With the added new features (dual mix, decay control) it has some ingenious added value. People were standing in line to buy the prototypes, and both were sold. I bought a kit, of course, but not sure when will I get around to putting it together. Bjorn has done a great service for the surf music community, and is an awesome guy as well. Ran "Bjorn 2.0" or "How a Surfy Bear Ate the Festival Crowd" This newest iteration definitely has my attention. (And liking the enclosures they were in for the SJSF hasn't diminished.) — Wes SoCal ex-pat with a snow shovel DISCLAIMER: The above is opinion/suggestion only & should not be used for mission planning/navigation, tweaking of instruments, beverage selection, or wardrobe choices. Top
wfoguy Joined: Dec 11, 2011 Posts: 2127	Posted on Jul 05 2015 03:50 PM Here's mine. I don't know if I'll leave it as is or paint it or whatever. Last edited: Jul 05, 2015 16:13:32 Top
Big_Ryan Joined: May 01, 2011 Posts: 578 San Diego	Posted on Jul 05 2015 06:27 PM bjoish wrote: warioblast wrote: What kind of mods did you add ? Hi Here are two prototypes I have built for showcase at the Reverb Event at the Surfer Joe Summer Festival. Inspired by suggestions and comments on this forum I have added some new features to the FET Reverb: - True Bypass - Two switchable Mixer-settings - Relay switching. - Volume control - Buffered output - C10 easy access And a Decay pot – controlling the length of reverb tail! i was about to pull the trigger on a surfy bear kit till i saw this, are these going to be features available in a future model? should i wait until that model comes out? — http://dinosaurghost.bandcamp.com/ http://sixtycyclehum.podbean.com Top

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