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Old 8th July 2015, 10:29 PM   #1
DMoe is offline DMoe  United States
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Default Need ideas for Leslie replace amp

Hello everybody well I'm just curious I have a Leslie that does not have an amplifier. I would like to build an amplifier for my Leslie. I've seen other people use Marshall guitar heads, and other things for replacements. If you were's going to select a guitar amplifier head what would it be? Or what type of Amplifier do you suggest I build?


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Old 8th July 2015, 11:43 PM   #2
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Depends on your skill level and tool kit. You can buy complete replacement amplifiers that are comparable. You can buy a kit for a 40 watt or so vacuum tube amp, scratch build one or take the easy way and buy a switching amplifier module.

The nature of a Leslie is that distortion is not a critical issue and only reasonably flat frequency response is required.

So if you want to spend $750.00+ buy a modern replacement. I would build a tube amp from a kit as assembling the correct parts would cost about the same. Of course a module would be cheapest and could be done for under $75.00.

Having looked a kit seems to be about $600 and if you buy the parts $300.

Last edited by simon7000; 9th July 2015 at 12:06 AM.
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Old 9th July 2015, 01:08 AM   #3
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Depends on what sort of instrument you are intending to put through the Leslie.
Guitar, Keyboard, organ?
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Old 9th July 2015, 03:05 AM   #4
DMoe is offline DMoe  United States
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This would be for a organ. I have thought about a chip amp with a tube pre, but idk


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Old 9th July 2015, 03:56 AM   #5
DMoe is offline DMoe  United States
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I saw I guy running a really slick blues set up with a Marshall amp running to Custom Leslie rigs, and it was unreal in how it sounded. While I understand the whole kit idea, do I get a guitar tube kit, or a tube amp for regular applications.


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Old 9th July 2015, 06:50 AM   #6
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Is it a classic Hammond organ, these have an inbuilt preamp and generally a Nine? pin connector to the leslie which carries signal as well as speed control
Does the leslie have horn plus rotor, you would need a crossover
Other things to consider are whether the amp has enough low end power since an organ's range is well below a guitar's
I have a pair of homemade leslies (from console organ units) for my keyboard through a Playmaster 117 amp which was designed for guitar/bass /keys usage
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Old 9th July 2015, 06:56 AM   #7
DMoe is offline DMoe  United States
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Default Need ideas for Leslie replace amp

It is a classic organ a c3 these are Leslie 120s that ran off of the Hammond, and I will be modding them with a upper rotor. I will also add the crossover and up grade the stock speakers.
I am going to use a line out kit or make one for the Hammond, and use a speakon or xlr out for sound, and use a different means of switch of the motors, so I no longer have to use the organs mains.
But over all my goal is to have something powerful, something portable, something with effects, such as reverb for classical, and also can play other keyed instruments through when I have to gig


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Old 9th July 2015, 01:20 PM   #8
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Not sure if you have it but here's the 122 schematic: AS you can see, no preamp needed.






leslie122.gif

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Old 9th July 2015, 01:54 PM   #9
DMoe is offline DMoe  United States
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I know the 122 the organ has an onboard preamp I know the 122 doesn't have one, because the organ has its own


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Old 9th July 2015, 02:07 PM   #10
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Quote:
Originally Posted by DMoe View Post
This would be for a organ. I have thought about a chip amp with a tube pre, but idk


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This post is why I talked about the preamp.
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