# Pulling spring reverb from a trashed amp

**URL:** <https://boards.straightdope.com/t/pulling-spring-reverb-from-a-trashed-amp/501984>\
**Category:** Factual Questions\
**Created:** [July 5, 2009, 4:32pm UTC](https://boards.straightdope.com/t/pulling-spring-reverb-from-a-trashed-amp/501984 "2009-07-05T16:32:13Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![11811](https://avatars.discourse-cdn.com/v4/letter/1/9d8465/32.png) [@11811](https://boards.straightdope.com/u/11811)\
**Post date:** [July 5, 2009, 4:32pm UTC](https://boards.straightdope.com/t/pulling-spring-reverb-from-a-trashed-amp/501984/1 "2009-07-05T16:32:13Z")

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Any dopers like to salvage parts from dead amps? I have an old Peavey Stage that isn’t in the best shape and will probably net $20 at the nearest pawn shop. I’m tempted to just trash it but wonder if it’s worth pulling the spring reverb.

Is it [ol]  
[li]difficult to remove, electronically speaking?[/li][li]difficult to install into another amp?[/li][/ol]

I have replaced the amp with a Fender Frontman 212R, so it’s not like I need the reverb tank immediately.

The Peavey also has a 12-inch speaker that I would probably keep as a spare.

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**Author:** ![Nunavut\_Boy](https://avatars.discourse-cdn.com/v4/letter/n/e95f7d/32.png) [@Nunavut\_Boy](https://boards.straightdope.com/u/Nunavut_Boy)\
**Post date:** [July 5, 2009, 7:00pm UTC](https://boards.straightdope.com/t/pulling-spring-reverb-from-a-trashed-amp/501984/2 "2009-07-05T19:00:17Z")

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They’re easy to pull out, usually a couple of screws holding down a black tolex bag with a couple of RCA connectors. Useless though. New ones are pretty cheap ([$35](http://www.hoffmanamps.com/MyStore/perlshop.cgi?ACTION=thispage&thispage=parts16.htm&ORDER_ID=147975035)) and although is is possible to wire a reverb circuit into an old tube amp with point to point soldering, you’d need to wire in a new tube socket and probably a small transformer. It would probably be next to impossible to wire it into any amp with printed circuit boards. I am by no means an expert though, just a dabbler in building amp kits.

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**Author:** ![11811](https://avatars.discourse-cdn.com/v4/letter/1/9d8465/32.png) [@11811](https://boards.straightdope.com/u/11811)\
**Post date:** [July 5, 2009, 9:03pm UTC](https://boards.straightdope.com/t/pulling-spring-reverb-from-a-trashed-amp/501984/3 "2009-07-05T21:03:03Z")

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Yeah, I figured it was a tilting at windmills kind of thing.

Are you building tube amps from kits, and whose kits are you using? Expensive?

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**Author:** ![Nunavut\_Boy](https://avatars.discourse-cdn.com/v4/letter/n/e95f7d/32.png) [@Nunavut\_Boy](https://boards.straightdope.com/u/Nunavut_Boy)\
**Post date:** [July 5, 2009, 9:43pm UTC](https://boards.straightdope.com/t/pulling-spring-reverb-from-a-trashed-amp/501984/4 "2009-07-05T21:43:26Z")

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I built [this amp](http://ax84.com/hioctane.html) from a kit from [Doberman amps](http://shop.dobermanamps.com/) for about $300. This was the cheapest way to do it, you can buy multi thousand dollar kits for classic amps. Mine sounds pretty sweet if I do say so myself. Fun to build, frustrating to get rid of hum problems. I used the experience in building it to tackle refurbishing and tweaking my 1974 Deluxe Reverb, which now sounds amazing.