Interesting little mods! Danny, did you try the Epoxy?
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SurfGuitar101 Forums » Gear »
What's the Fender '63 Reissue Reverb Tank Tube Mod?
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Joined: Mar 29, 2007 Posts: 815 Athens, Greece |
Posted on May 13 2010 12:05 PM
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Joined: Aug 06, 2013 Posts: 1 |
Posted on Aug 06 2013 10:15 AM
Hey guys, I'm updating my Fender unit that I bought new in '93. I wondered if there are any new mod updates not listed in this thread...the last reply was a while back. Thanks! |
Joined: Apr 03, 2010 Posts: 3201 Jacksonville, AL 
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Posted on Aug 06 2013 10:33 AM
Just going to chime in here with another question. I recently purchased a few NOS 6K6 tubes to replace the 6v6 that was in my hand wired unit. I was wondering about the other two tubes. What are peoples suggestions for those slots? —THE KBK ... This is the last known signal. We offer Sanctuary. www.thekbk.com |
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Joined: Nov 03, 2011 Posts: 660 |
Posted on Aug 06 2013 12:11 PM
I've done the C10 mods a few times and found I prefer the stock C10 value. Adding more bass with a higher C10 cap increased low end rumble to the reverb pan and took away some of the splashy/higher end vintage charm (at least for me) For the 12AT7 I'm using a Ei ECC81 and for the 12AX7 I'm using a JAN 5157. The two things in my RI I'd like to address is (1) to reduce the decay on the pan and (2) reduce the signal attenuation a bit. I've tried a US accutronics pan (from 2000's), MOD pan and new Accutronics. They all have different tonal and decay characteristics. If I could reduce the decay (post note ummmmmm) a bit I'd be content (I think). Newer pans seem to have more decay then the older 60's verb units (maybe due to newer springs not being stretched out yet and cap values not being degraded over 30+ years) |
Joined: Feb 25, 2012 Posts: 129
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Posted on Sep 08 2013 06:47 PM
hey Im planning on buying a NOS 6K6 tube. Are there any differences between NOS 6k6's or are they all similar. Thanks |
Joined: Mar 15, 2011 Posts: 8528 Back in Piitsburgh, Pennsylvania, where I grew up.
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Posted on Sep 08 2013 06:53 PM
Good discussion here. Hope it helps. —This is Noel. Reverb's at maximum an' I'm givin' 'er all she's got. |
Joined: Feb 26, 2006 Posts: 12159 Seattle 
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Posted on Sep 08 2013 07:28 PM
TheCruelSea wrote:
Every tube is different, even among the same brand. |
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Joined: Feb 26, 2006 Posts: 12159 Seattle
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Posted on Sep 08 2013 07:30 PM
derekirving wrote:
Adjust the depth knob. |
Joined: Jul 24, 2012 Posts: 2762 Finknabad, Squinkistan 
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Posted on Sep 08 2013 09:19 PM
A meta-answer to these kind of Q's is Less is more. Obsessing on the million ways that I touch or don't touch the string yells me the most control over drip, sustain etc. I don't mean to be smarty about the topic but as every comment accrues we can see that even components with same vAlues often differ and every complex for jot has its own little voice- but our own musical voice is much stronger. A friend who built his own recording studio, Marshall and Vox clones and could be described as a tweak mod freak eventuAlly came around to just playing as clean and simple as he could -essentially the solution of a jazz guitarist in his own postrock idiom. So i work with the gear as-is and don't fix it. Until it's broke. Meanwhile my ear, brain & hands are quite busy choosing among the million things to do. Ultimately the gear needs to become transparent to intention. I think that's why jazz guys are usually conservative about gear. — |
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Joined: Nov 22, 2007 Posts: 901 Portland, OR
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Posted on Sep 13 2013 02:38 AM
derekirving wrote:
For #1 you can try a different pan or turn down the dwell knob. For #2...wouldn't we ALL! The only way around it (the design of the Fender Reverb has less than unity gain output) is to run your reverb unit in parallel or use a boost for makeup gain after the reverb unit in the chain. — |
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Joined: Jul 24, 2012 Posts: 2762 Finknabad, Squinkistan
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Posted on Sep 15 2014 11:32 AM
A bump for the epoxy spring fix. Mr_Reverb63 wrote: — |
Joined: Jan 05, 2009 Posts: 262 Port Hueneme, CA
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Posted on Sep 15 2014 07:10 PM
Here's what I know about spring reverbs ... There is no knob that can change the decay time. That is mechanical and a function of the springs. You could buy a tank with a shorter decay time. Fender used "medium" decay times. You can also modify the springs a bit by putting a few pieces of thread between spring windings ( think dental floss) to mechanically shorten the time. Changing the tube to a 6k6 increases the drive (dwell) to the reverb pan. So if you don't have the dwell turned up all the way there is no need to change the tube ... Just turn up the dwell. Same thing. As far as loss of signal from unity the three tube designs are all subject to cancellation losses depending on what you plug into and the cable you use to do it. Keep the cable as short as possible and as low a capacitance as possible. The blend knob also figures in here. Fender fixed this deficiency with the four tube model. The fourth tube buffers the load ( your amp) from causing havok to the signal |
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Joined: Jul 24, 2012 Posts: 2762 Finknabad, Squinkistan
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Posted on Sep 16 2014 11:06 AM
I applied epoxy to my apparently ailing pan's spring connections, and shimmed the transducers, with epoxied wood splinters, last night around 7pm in the infernal heat of LA's Apocalyptic Autumn. I hope the epoxy there doesn't deaden the sound. It sure will cement the physical link and prevent any parasitic vibration. Will give it a full 24 hrs to set up, then I'll report back with results. tonetti wrote: — |
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Joined: Jul 24, 2012 Posts: 2762 Finknabad, Squinkistan
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Posted on Sep 16 2014 07:16 PM
Epoxy fix, & epoxied wood shims by the transducers, seems to have worked to reduce distortion to low levels. I have yet to play through my squeaky-clean Fender rig so I can't be sure, but bedroom test through Gibson tweed amp indicates good results. — |
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Joined: Jul 30, 2016 Posts: 883
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Posted on Jan 29 2019 04:09 AM
I would like to develop a method for a REVERSE EPOXY MOD, wherein the epoxy is removed from newer tanks in the hopes it will help reduce the decay length. |
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Joined: Jul 05, 2019 Posts: 141 |
Posted on Jul 08 2020 11:41 AM
I felt that my Reissue '63 reverb unit sounded a little thin, so I started researching mods. I just finished doing the following mods: I really like the sound much better now. Since I did all the mods at the same time, I couldn't tell you which ones had the most impact, but I love what I'm hearing. Last edited: Jul 08, 2020 11:41:27 |
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