RE: Preamp for 147-type Leslie?

["Kenneth R. Johnson" <KR_Johnson@msn.com>]

I've also got a Leslie 125, and I think its great!  The backplate on mine says 
25watts.  This amplifier uses 2 6L6 tubes in the output stage, and has a 
single extended frequency driver/rotor.  Obviously, the Leslie 147 uses a pair 
of 6550 tubes and has dual (separate high frequency/bass) drivers and rotors, 
so there really isn't much similarity.  The 125 does sound good though!

In a pinch, I've driven it with a headphone output with reasonable success, 
but to avoid overloading the driver amp, I removed the console load resistor 
(8-ohms, ceramic package resistor mounted on the input chassis - not on the 
amplifier chassis).  If you do this, keep the resistor, you'll need it for a 
standard hook-up.  Good luck with it.

Ken J

----------
From:   owner-hammond@zk3.dec.com on behalf of Tom Strano
Sent:   Sunday, March 02, 1997 8:41 PM
To:     hammond@zk3.dec.com
Subject:        Preamp for 147-type Leslie?

I just got my first piece of classic equipment this weekend - a Leslie 125.

I'm currently modifying it so I can easily use it with any signal source,
but I'm not sure what kind of preamp I should use to drive the 125's
amplifier.  (It's similar to the 147's, though only 20 watts, I think.)

Buying a Trek preamp pedal is overkill and too expensive - I tested it
by using a $10 test amplifier, and had it not been for the test amp's 
terrible S/N ratio, it would have been fine.

Any suggestions?  Guitar pedal?  Rip apart a cheap guitar practice
amp?  Build something (where can I get the schematic)?

Thanks!

- Tom

Hey, I can actually put an equipment tagline on my message now!
Voce DMI-64 MkII, Leslie 125, not working too well together yet.