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SurfGuitar101 Forums » Gear »

Permalink The Surfy Bear Fet Reverb

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Mischa wrote:

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?

Hi Mischa

Sorry about the problem.
Normally I dont recommend repairing SMT (surface mount) boards.
Since you added components to the RevInput, I would guess that the input jFET transistor is damaged. Can you see any visual damage on the board?

If you are comfortable with replacing a SOT23 transistor, I can send you one for free. I normally use a magnifying glass and two soldering irons for unsoldering.
I can of course not guarantee success Wink
Mail me!
/Björn

Thanks a lot for your advice and help Björn, I have sent you an email.

Cheers, Mischa

Hi folks, perhaps somebody had the same experience and can help. I finished my Surfy Bear reverb only 2-3 weeks ago. It sounded great indeed, and I was very proud it finally worked.

Yester when playing it stopped working. There was some faint reverb signal and no original signal any more. The reverb pan still produces a splash when moved. Rotating the internal trim pot also produced some sound, as usual. The faint reverb signal is much lower than it would normally be. It responds to the Mix and Dwell pot, i.e. it is loudest when both are dimed and disappears completely when they are set to zero. In that latter setting, there is absolutely no sound.

I disassembled the case and did a visual inspection. All solder joints seem in order. No shortcuts are visible between circuit board and ground or wherever. There is no visible damage to the circuit board. It's a mystery.

Any help would be appreciated. Many thanks in advance.

Cheers, Doc Dooley

DocDooley wrote:

Hi folks, perhaps somebody had the same experience and can help. I finished my Surfy Bear reverb only 2-3 weeks ago. It sounded great indeed, and I was very proud it finally worked.

Yester when playing it stopped working. There was some faint reverb signal and no original signal any more. The reverb pan still produces a splash when moved. Rotating the internal trim pot also produced some sound, as usual. The faint reverb signal is much lower than it would normally be. It responds to the Mix and Dwell pot, i.e. it is loudest when both are dimed and disappears completely when they are set to zero. In that latter setting, there is absolutely no sound.

I disassembled the case and did a visual inspection. All solder joints seem in order. No shortcuts are visible between circuit board and ground or wherever. There is no visible damage to the circuit board. It's a mystery.

Any help would be appreciated. Many thanks in advance.

Cheers, Doc Dooley

Hi Doc
There seem to be a problem with your board.
Please send a mail to 'service' at our website www.surfyindustries.com.

I am sure we can solve this problem.
/Björn

Thanks so much, Björn. I just did that. Best wishes, Doc Dooley

Hi I got one a couple of months ago, it sounds and looks great. One problem though, I experience both signal loss and treble loss when using it. Anyone else with this problem?

langhorn wrote:

Hi I got one a couple of months ago, it sounds and looks great. One problem though, I experience both signal loss and treble loss when using it. Anyone else with this problem?

Just replied to you via email Michael. We fix this or replace it no problem, but I want to know what could cause that. No we have not experienced this problem with the Pedals, only with some kits when bad soldering is done. But it should not be the case Smile

We will get back to you via email asap!

Lorenzo

Lorenzo "Surfer Joe" Valdambrini
(www.surfmusic.net)

langhorn wrote:

I experience both signal loss and treble loss when using it. Anyone else with this problem?

ReverbFAQ wrote:

As the Mixer control is turned up from zero, additional resistance is placed in series with the output of the dry signal path (the cathode follower). This additional resistance forms a low-pass RC filter with the capacitance of the cable used to connect the reverb unit to the amplifier. The resultant filter removes high frequencies from the dry signal, an effect known as 'tone suck'.
http://wiki.surfguitar101.com/ReverbFaq

So, it's normal/expected behaviour.

For higher mixer settings (drippy surf setting) I don't mind the loss of highs in the dry signal because the abundant highs from the reverb will fill in the missing highs.

For low mixer settings the loss of signal/highs is pretty much unnoticeable.

It's only in the inbetween/moderate mixer settings that it sometimes bothers me.
I added a 'kill dry/wet only switch' to my surfy bear and use a Boss LS2 pedal to mix dry and wet. This way my dry signal and its highs are unaffected, regardless of the amount of reverb.

http://www.diystompboxes.com/smfforum/index.php?topic=117665.0

Last edited: Nov 15, 2017 09:31:12

Langhorn’s observation is spot on imo. What I like to add to this is that a good buffer after the Surfy Bear might help to bring back some high end loss.

j_flanders wrote:

langhorn wrote:

I experience both signal loss and treble loss when using it. Anyone else with this problem?

ReverbFAQ wrote:

As the Mixer control is turned up from zero, additional resistance is placed in series with the output of the dry signal path (the cathode follower). This additional resistance forms a low-pass RC filter with the capacitance of the cable used to connect the reverb unit to the amplifier. The resultant filter removes high frequencies from the dry signal, an effect known as 'tone suck'.
http://wiki.surfguitar101.com/ReverbFaq

So, it's normal/expected behaviour.

For higher mixer settings (drippy surf setting) I don't mind the loss of highs in the dry signal because the abundant highs from the reverb will fill in the missing highs.

For low mixer settings the loss of signal/highs is pretty much unnoticeable.

It's only in the inbetween/moderate mixer settings that it sometimes bothers me.
I added a 'kill dry/wet only switch' to my surfy bear and use a Boss LS2 pedal to mix dry and wet. This way my dry signal and its highs are unaffected, regardless of the amount of reverb.

http://www.diystompboxes.com/smfforum/index.php?topic=117665.0

Ok, thanks for info!
/Michael

Last edited: Nov 15, 2017 09:46:15

Ok, thanks for info!
/Michael

langhorn wrote:

j_flanders wrote:

langhorn wrote:

I experience both signal loss and treble loss when using it. Anyone else with this problem?

ReverbFAQ wrote:

As the Mixer control is turned up from zero, additional resistance is placed in series with the output of the dry signal path (the cathode follower). This additional resistance forms a low-pass RC filter with the capacitance of the cable used to connect the reverb unit to the amplifier. The resultant filter removes high frequencies from the dry signal, an effect known as 'tone suck'.
http://wiki.surfguitar101.com/ReverbFaq

So, it's normal/expected behaviour.

For higher mixer settings (drippy surf setting) I don't mind the loss of highs in the dry signal because the abundant highs from the reverb will fill in the missing highs.

For low mixer settings the loss of signal/highs is pretty much unnoticeable.

It's only in the inbetween/moderate mixer settings that it sometimes bothers me.
I added a 'kill dry/wet only switch' to my surfy bear and use a Boss LS2 pedal to mix dry and wet. This way my dry signal and its highs are unaffected, regardless of the amount of reverb.

http://www.diystompboxes.com/smfforum/index.php?topic=117665.0

Hej Michael

Do you have a 6G15 to compare with?
You should get a sound very similar to the 6G15.
Please contact 'service' from the surfyindustries website.
We can even discuss in Swedish Smile
/Björn

A little Aloha Sluts tribute to the Surfy Beeeerrrrrr pedal, this little gem even works with fuzzzzzzzz:

image

www.alohasluts.com
Aloha Sluts on BandCamp
www.arnyzona.com (my photography)
Aloha Fest on facebook

Thank you Arny for the kind words!

arny wrote:

A little Aloha Sluts tribute to the Surfy Beeeerrrrrr pedal, this little gem even works with fuzzzzzzzz:

image

I love my fuzz tones with the surfy!

The Kahuna Kings

https://www.facebook.com/pages/The-Kahuna-Kings/459752090818447

https://thekahunakings.bandcamp.com/releases

Has anyone attempted to mount their Surfybear pedal on their pedal board? I am thinking the way to do it would be to replace the clear plexiglass bottom with something similar I can affix Velcro to. Thoughts?

Mrflood,
You may want to consider the Surfy Bear Kit for pedal board purposes.
This way you'll have full flexibility in mounting and it takes up less space.
My bandmate has a pedalboard with the actual reverb tank mounted underneath and we built the Surfy Bear controls into a pedal that is mounted on top, with the other pedals.
Works great for him.

Cheers,
Jeff

http://www.facebook.com/CrazyAcesMusic
http://www.youtube.com/user/crazyacesrock
http://www.reverbnation.com/crazyacesmusic

CrazyAces wrote:

Mrflood,
You may want to consider the Surfy Bear Kit for pedal board purposes.
This way you'll have full flexibility in mounting and it takes up less space.
My bandmate has a pedalboard with the actual reverb tank mounted underneath and we built the Surfy Bear controls into a pedal that is mounted on top, with the other pedals.
Works great for him.

Cheers,
Jeff

Hey Jeff, didn't you experience any induction from the power supply and/or other pedals? I have a Voodoo Lab Pedal Power underneath my Pedal Train and the hum caused by induction was too much to work with. I place the tank a few inches away from the board and then it is just fine.

Kiwamu, my bandmate, has no such problems and I think he's using the the same power supply.
His pedal board is often a rat's nest of barely working cables (a long time band joke) and he's real hard on gear but he's had no problems with inductance or hum.

http://www.facebook.com/CrazyAcesMusic
http://www.youtube.com/user/crazyacesrock
http://www.reverbnation.com/crazyacesmusic

CrazyAces wrote:

Kiwamu, my bandmate, has no such problems and I think he's using the the same power supply.
His pedal board is often a rat's nest of barely working cables (a long time band joke) and he's real hard on gear but he's had no problems with inductance or hum.

Alright, that's good to hear. Did he shield his tank? Do you know?

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