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== Mounting the tank ==
Because the springs themselves look like [[inductor]]s to any nearby electro-magnetic signals that may be floating around, they are ''very'' susceptible to picking up [[interference]] from [[power supplies]] and the like within a [[modular]] set-up. This presents a perennial problem of how/where to mount the tank inside/outside the [[case]] in order to minimise [[mains hum]] from being picked-up by the unit. Trial and error is really the only option, though there are many ideas to be found by searching the
* [https://www.
* [https://www.
== Replacing the Doepfer A-199 spring tank ==
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== References ==
* [https://web.archive.org/web/20110819081810/http://wiki.
== External links ==
* [https://web.archive.org/web/20120111214611/http://www.amplifiedparts.com/tech_corner/spring_reverb_tanks_explained_and_compared Spring Reverb Tanks Explained and Compared], a thorough introduction ''and'' detailed description of spring reverb tanks
=== Manufacturers ===
* [http://www.accutronicsreverb.com/ Accutronics] have been a major player for many years, but have recently been taken over by Belton.
* The [https://web.archive.org/web/20130616164602/http://www.belton.co.kr/index.php?mm_code=75 Belton] range of tanks include many similar to the Accutronics units, but also include 'mini' tanks, which are favoured by some Eurorack makers' reverb modules.
* These [https://web.archive.org/web/20121028204959/http://www.tubeampdoctor.com/en/shop_Reverb_Cans_TAD_Reverb_Cans/ Tube Amp Doctor] tanks have recently come to light, with very similar looking tanks/specs to the other makes.
* Another brand of tanks has recently emerged – [https://web.archive.org/web/20111207133452/http://www.amplifiedparts.com/products/amp_parts?&filters=MOD+Reverb+Tanks MOD reverb tanks]. These are apparently meant to be clones of the early Accutronics tanks: they are made for [http://www.cedist.com/ CE Distribution], who also seem to be the same people as [http://www.tubesandmore.com/ Antique Electronic Supply ('tubesandmore.com')], and [http://www.modkitsdiy.com/ Mod Kits DIY], as well as [http://www.amplifiedparts.com/ Amplified Parts] – the similarities in the webpages are obvious, and the [https://web.archive.org/web/20120111214611/http://www.amplifiedparts.com/tech_corner/spring_reverb_tanks_explained_and_compared technical page] mentioned in the intro above is available at several of these sites, and also contains a summary comparison between the Accutronics, Belton, and MOD tanks.
=== Schematics ===
Take care with some of these: some will be designed to interface to guitar-level signals (tens to hundreds of millivolts?), and so may need re-scaling for use with general synthesizer-level signals of up to ''10 volts'' or more! It is also possible some use obsolete or hard-to-source parts!
* Useful [https://web.archive.org/web/20110425065824/http://www.accutronicsreverb.com/main/?skin=sub05_08.html application notes] at the Accutronics site.
* A couple of simple and more complex circuits [https://web.archive.org/web/20110510103051/http://sound.westhost.com/project34.htm Spring Reverb Unit For Guitar or Keyboards]
* Scan of a [http://vintageradio.me.uk/electronics/reverb72.htm Practical Wireless article] from 1972
* [https://web.archive.org/web/20130421035909/http://homepage.ntlworld.com/henry01/spring_reverb/spring_reverb.htm Triple Spring Reverberation Unit], a more involved circuit using three tanks.
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