Re: B-3 + 145 setting: open, 8 ohm, 16 ohm?

[b3nut@madison.tdsnet.com (Todd A. Phipps)]

At 10:44 PM 1-14-96, Philippe Ducor wrote:
>This is a newbie question. On my 145 (=147 amp) there is a switch labeled
>console load resistor with 3 positions: open, 8 ohm, 16 ohm. Which one
>should I use knowing that I have a B-3, and that the 145 is my only
>speaker? (it is now on "open" and the sound is real great, but I don't want
>to blow the Leslie driver if the setting is incorrect...).
>
>Thank you in advance
>
>Phil

Phil -

Leave the setting to "Open."  That's the console load resistor switch.  The
B-3 has no power amp, so a load is unnecessary.  The 147 amplifier was
designed to be driven by a spinet or self-contained organ's power
amplifier, and the load was necessary because tube power amps don't like
being unloaded.  For instance - I use the 8-ohm setting when my 145's
plugged into my L-100, and set it to Open when it's plugged into my B-2 or
B-3.  The 145 I have on my L-100 right now had had the resistor system
removed by whoever owned it before our other keyboard player bought it (he
doesn't use it so I borrowed it and fixed it up for my rig.)  I went to
Radio Shack and got an 8-ohm non-inductive wirewound 20-watt resistor and
installed it.  I have yet to put a switch to disable the resistor in so I
can plug my B-3 into it.  Maybe this weekend...

Hope this helps...

TP


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