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| Re: K-250-4 reverb unit [message #23278 is a reply to message #23277] |
Mon, 06 July 2015 20:51   |
chicagobill
Messages: 2006
Registered: April 2003
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Senior Member |
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The position of the springs does not matter. As long as the end clips are still intact and the springs can be connected.
Later tanks were glued at the connection points, to keep the springs from falling off. But then the end clips would be broken off when the tanks were bounced too hard. This would mean that the tank would need to be replaced when the springs broke loose.
If you want to glue them in, mix a little epoxy and dab a tiny bit on with a toothpick where the spring connects to the end clip.
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| Re: K-250-4 reverb unit [message #23286 is a reply to message #23277] |
Tue, 07 July 2015 10:35 |
slk854
Messages: 192
Registered: January 2015
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Senior Member |
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One was longer, by about 2" or so. When I put them back in the centers of both sections of springs lined up pretty close.. Anything to be concerned about at this point????? Looking back I see there are 2 short sections connected together and 2 longer sections connected. Should I try to put a long and a short together, and make them equal?????
Steve
[Updated on: Tue, 07 July 2015 10:38] Report message to a moderator |
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| Re: K-250-4 reverb unit [message #23291 is a reply to message #23277] |
Tue, 07 July 2015 11:44 |
chicagobill
Messages: 2006
Registered: April 2003
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Senior Member |
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No, the two springs are not supposed to be the same length. Or actually there are 4 springs there, that's why the tank is a model number 4. The springs are also counter wound.
All of this was to make the sound more complex, a mixture of longer and shorted delays to make a rich, thick reverb.
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| Re: K-250-4 reverb unit [message #23293 is a reply to message #23277] |
Tue, 07 July 2015 11:52 |
Iowa Boy
Messages: 767
Registered: June 2014
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Senior Member |
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Chicagobill just answered my question......guess mine has been altered.
So if one is shorter than the other, then the shorter spring would be much tighter than the other one since the distance to the connections is the same for both springs......correct?
[Updated on: Tue, 07 July 2015 11:55] Report message to a moderator |
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| Re: K-250-4 reverb unit [message #23294 is a reply to message #23277] |
Tue, 07 July 2015 13:16 |
chicagobill
Messages: 2006
Registered: April 2003
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Senior Member |
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Yes, the shorter spring will be tighter, but these springs are not like door closer springs, they really aren't that strong.
Is your tank marked with a brand like Accutronics or OC or Gibbs? There was a very early version of the tanks that had only two long springs. That was a type 2 tank, but they were never used in Kustom amps.
It could be that your tank was replaced somewhere along the road.
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| Re: K-250-4 reverb unit [message #23297 is a reply to message #23277] |
Tue, 07 July 2015 15:40 |
chicagobill
Messages: 2006
Registered: April 2003
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Senior Member |
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Gibbs was a division of Hammond Organ, who invented the entire spring reverb business. The original springs were about two feet long and were hung like a necklace. In fact they are often refered to as necklace reverb units.
Later on the standard size tanks were created and were sold to all sorts of companies that wanted to add reverb to their sound systems. Fender, Gibson, General Motors, etc. all had "Hammond Reverb" units added to some of their products. I remember a friend's dad had a early '60s Buick that had reverb unit on the car radio. Every time he hit a bump the springs would go boing. It did make the mono newscasts sound cool though.
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| Re: K-250-4 reverb unit [message #23301 is a reply to message #23277] |
Tue, 07 July 2015 19:01 |
Iowa Boy
Messages: 767
Registered: June 2014
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Senior Member |
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My friend in high school had an old Corvar (spelling) that had factory reverb on the radio also. Had the coolest sound until you hit a bump in the road......then the loudest damned twang you every heard. The car's doors also opened on their own when turning corners fast. Dead trap on wheels.
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