Nice! I'm going to have to play around with my old one!
—Trevor von Drat
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Joined: Mar 03, 2006 Posts: 81 Toronto |
Nice! I'm going to have to play around with my old one! —Trevor von Drat |
Joined: Apr 15, 2008 Posts: 1281 |
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160267193604&_trksid=p2759.l1259 Wow, someone is already trying to make money on this mod. Lame. And look, they're using my clips to sell it. I'm reporting this shiz - for using my music, obviously. I can't do anything about the mod ripoff. — |
Joined: Apr 15, 2008 Posts: 1281 |
Well, the guy came forth and apologized. http://acapella.harmony-central.com/forums/showthread.php?t=1636688&page=4 — |
Joined: Jul 30, 2008 Posts: 17 |
Hey Uma, I've been shopping around for the best reverb solution for my needs, and the Spring King with your mod is looking really really good. The SK was already topping the list for my list of pedal reverb options, but after hearing that middle part of your sound sample I think I'm sold. Anything you'd change or do differently if you were doing the mod from scratch again? You mentioned a lower value feedback pot; any idea what value you think would work better? I still have to decide if I'd rather put the money toward a build-it-yourself reverb tank kit, but the cheapest those seem to start is $400-500. I just feel like it'd be silly to have a reverb tank worth more than the amp it's feeding into (Vox Valvetronix AD30VT). |
Joined: Apr 15, 2008 Posts: 1281 |
Hi there, Well, I've ordered some parts, and I'm going to try the following with the spring king. Instead of a feedback pot, I'm going to have a switch with two resistors - one with the stock feedback value, one with a value high enough to mute the delay signal (~100k). I'm also going to install a smaller value delay time pot (10k) for more fine-tuning of slap-back delay time. I'm doing this because I find I don't really use the delay part of the reverb much, except for a bit of subtle slapback mixed in w/ the verb, so I'd rather be able to really fine tune delay time and easily switch between optimal feedback and zero feedback. But, if you're feeling really adventurous, here is a from-scratch solid state reverb. The schematic calls for the Accutronics 8AB2A1B reverb pan, but you should also be able to use the 4AB3C1B, which is very nearly the same impedance, and is the reverb pan used in the Fender 63 reverb. http://www.solorb.com/elect/musiccirc/reverb2/index.html |
Joined: Apr 15, 2008 Posts: 1281 |
Okay, made some changes on my Spring King - now I'm using a 10k pot for delay time (which stays within the realm of slap back at all positions) and a 50k pot for feedback, in series with a 15k resistor. I found that to be more satisfying that the toggle switch. At max feedback then, it's still getting 15k resistance, which is stock. I had forgotten how much feedback there is in the stock setting. It actually masks the real reverb quite a bit. So anyway, I can go from that stock value all the way down to no delay at all, which is what I set it to most of the time. I like this version of the mod the best so far. I'm working on another mod that should make it even cooler - we'll see if it turns out. — |
Joined: Jul 23, 2008 Posts: 488 Edge of the East China Sea |
Great project, UmaFloresta. I'm doing all within my power to persuade someone on eBay to ship a Spring King to me overseas. If you do make that mod with the vacuum tube sticking out of the top, please post a pic! |
Joined: Apr 15, 2008 Posts: 1281 |
— |
Joined: Jul 13, 2006 Posts: 271 Pennsylvania |
My poor SpringKing, raped and held captive by an evil scientist Cool your sharing this info about a fairly popular pedal! Definite difference in sound from the original. |
Joined: Apr 15, 2008 Posts: 1281 |
Your Spring King now has acute Stockholm Syndrome - it actually wants to be modded some more, and then says "thank you sir, may I have another?" Hey, thanks for selling it to me. It's been fun exploring its inner workings a little, with my limited knowledge. I use it for every song now. |
Joined: Apr 15, 2008 Posts: 1281 |
Okay, yet another perverted modification has been done to the Spring King. However, due to a guy at Harmony Central taking my first mod (and clips) and trying to sell it on eBay, I'm just going to post a link to some streaming clips. For those who want to know how to do the mod, please PM me and I will be more than happy to tell you how, or even do it for you if you don't feel comfortable. This one is very easy to do, however, so most of you should be able to do it. Clips (all are labeled as Spring King clips): http://www.soundclick.com/bands/default.cfm?bandID=501181&content=music — |
Joined: Feb 27, 2006 Posts: 58 Santander, Spain |
See what you've done? I've just ordered a Spring King from a guy at ebay. I'll start heating my solder... (Why do I do this? ...I already have a '63 Fender Reverb unit... I don't know, but I can't help it... ) Thanks a lot for the info!!!! Beto Derrumbe —http://www.myspace.com/losderrumbes Last edited: Aug 28, 2008 12:37:39 |
Joined: Apr 15, 2008 Posts: 1281 |
Well, glad to fuel your gas. If you want info on the latest mod, let me know and I will PM you. Love your music, by the way. — |
Joined: Feb 27, 2006 Posts: 58 Santander, Spain |
Of course I want!! - Please, please, please...!!! — |
Joined: Apr 15, 2008 Posts: 1281 |
Instructions sent! |
Joined: Feb 26, 2008 Posts: 37 |
Could you send them to me also ? Thanks! |
Joined: Apr 15, 2008 Posts: 1281 |
Sent! — |
Joined: Apr 15, 2008 Posts: 1281 |
I'm just going to go ahead and post the mod: This time what I did was hook it up to an external spring - the Accutronics 4AB3C1B, the same type used in the Fender 63 outboard reverb. All you need to do to hook it up is drill a couple of holes in the case, and install two RCA (phono) jacks. You can get those at Radioshack. Then you find the two pairs of green and black wires, that go from the PCB to each end of the springs. Here's a photo: You cut those wires, strip the ends, and solder them to the RCA jacks, going from the PCB to the jacks. The green end is the signal, the black end is ground. If you want to still be able to use the internal springs, you can send those wires to a 4PDT toggle switch, available at Small Bear electronics. You just need to be careful to keep the wires from drooping down over the springs and muting them. If you need a diagram for wiring to a switch, let me know. Anyway, once the jacks are in your Spring King and the wires are soldered in there, you can get two ordinary RCA cords (or a single stereo cord with two plugs on each end) and run them from the Spring King to the Accutronics reverb pan. They come with RCA jacks already in place. If you plug them in and get no reverb, try reversing them - if they're backwards you'll get no reverb. The Spring King is compatible with any spring reverb tank with an input impedance of 8 to 10 ohms. If you want to try different tanks, go to the Accutronics web site and find out how to read the codes on the tanks- codes tell you how many springs there are, reverberation time, input and output impedance, etc. Anyway, the big improvement on this mod is that the 4AB3C1B tank has longer springs and a longer reverb time, and a nicer drip. I really like it. But, it's big! About 17 inches long. What I'm going to do with mine is house it in a bread box so it's portable. Plus I can kick it easily. A cheap tool box would also work, or if you're handy with wood, you could make a wooden enclosure for it. Just use some rubber washers and whatnot when mounting to somewhat insulate it from external vibrations. — |
Joined: Apr 15, 2008 Posts: 1281 |
A guy made this PDF for me, with complete instructions. He did a really good job. http://www.box.net/shared/94p1g5p1vz — |
Joined: Apr 15, 2008 Posts: 1281 |
Okay, just for fun, I made a comparison of the stock small tank and the big tank, and also what it sounds like with both tanks at once in parallel. I still prefer just the big tank alone. The settings on all three clips are no delay, and Volume, Tone and Reverb cranked all the way up. Big Tank: http://soundclick.com/share?songid=6892083 Small Tank: http://soundclick.com/share?songid=6892074 Both Tanks: http://soundclick.com/share?songid=6892091 — |