From las8323@rs175174.ks.boeing.com Fri Aug 17 09:26:06 2001
Subject:Re: diy mini leslie

Ben,
Wow .... can you post any pix to the homepage?
Either in the "rigs" folder or maybe we can set up a folder like
"diy leslies".

Larry
>
> Just finished such a device this week and it sounds great:
>
> - 2nd hand driver and Rotor assembly (including 2-speed motor).
> - Rubber o-belt to connect motor and horn.
> - 800Hz x-over (just a cap).
> - Motor speed control based on 2 $7 Solid State relays from
> Radioshack: 275-310 actually a Sharp S101S05V part. All you need to
> do is supply 1.5V control voltage.
>
> Everything (but the amp) is mounted on a rectangle of plywood using
> 2x3 blocks. Then I bolted that into an SKB 8-space rack.
>
> Total parts cost was about $300.
>
> To round off the rig:
> - '70s Traynor YBA-1 "Bassmaster" as an amp (3x12A7, 1xEL34@50W)
> - 1x12" fixed speaker cab for lows (3kHz Low pass filter, and
> powerline tweeter w/attenuator which is set to off when using the
> rotor).
>
> What is especially surprising to me is how good my wurly sounds
> through this setup.
>
> The only thing I miss is the ability to gradually spin down the rotor
> which I used to get using a canabalized 8" foam baffle from a console
> organ. However, when I wired up the above speaker, I provided slave
> motor control and speaker outputs so I can play w/running dual mini-
> leslies (until my guitarist starts bringing his 2nd cab and then I'll
> need 2 more leslies...)
>
> I'm also not sure on stage volume yet- putting the bassmaster
> past "2" on the volume dial is painful in my basement.
>
> -Ben
>
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