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  1. The Organ Forum
    https://organforum.com/forums/forum/electronic...

    Brief Tutorial of Leslie 122 Switching - The Organ Forum

  2. Images of Switch Leslie Without a Relay

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  3. GroupDIY Audio Forum
    https://groupdiy.com/threads/leslie-relay-switching.44302

    Leslie relay switching | GroupDIY Audio Forum

  4. Music Electronics Forum
    https://music-electronics-forum.com/forum/...

    Leslie motor/power/speed switch schematic - Music Electronics …

  5. The Organ Forum
    https://organforum.com/forums/forum/electronic...

    Brief Tutorial of Leslie 122 Switching - The Organ Forum

  6. bentonelectronics.com
    https://bentonelectronics.com/servicing-the-leslie-122-amplifier

    Servicing the Leslie 122 Amplifier – Benton Electronics

  7. The Organ Forum
    https://organforum.com/forums/forum/electronic...

    Low Voltage Leslie Switching Circuit - The Organ Forum

  8. People also ask
    How does a Leslie 122 switch work?
    Leslie 122 Switching. Relay switching in a 122 is carried out by applying a DC voltage to the balanced input of the Leslie Amp. This voltage is applied equally to both input pins. Pin-1 and Pin-6. The source of this DC voltage can come from the Organ or from the Leslie itself.

    Servicing the Leslie 122 Amplifier - Benton Electronics

    bentonelectronics.com
    What voltage does a Leslie relay use?
    There is a 1meg resistor connected to pin-1 of the Leslie input that goes to the relay switching tube. It senses the DC and turns on or off the switching tube which in turn turns on or off the relay. This voltage should be around 50 or 60 Vdc. This can vary due to the source of the voltage and is not critical.

    Servicing the Leslie 122 Amplifier - Benton Electronics

    bentonelectronics.com
    How do I know if my Leslie kit is switching?
    The point where switching will happen is 30-32 Volts. So, if your Leslie kit sources switching voltage from the organ's preamp, you should be able to measure the switching voltage at the female end of the Leslie cable, unplugged from the Leslie, between pins 2 (Ground) and 1 or 6. It should be zero on Fast and somewhere between 32 and 90V for Slow.

    Brief Tutorial of Leslie 122 Switching - The Organ Forum

    organforum.com
    How does a Leslie switch work?
    The DC voltage goes into a “kit” that divides the voltage down with resistors and selectively applies it to the Leslie input through the control of the Leslie switch. The heart of the system is a 1:1 matching or isolation transformer. The divided voltage is applied to the center tap of the transformer thus applying it to both input pins equally.

    Servicing the Leslie 122 Amplifier - Benton Electronics

    bentonelectronics.com
    Is it safe to run a relay through a Leslie speaker?
    The relay coil is very small, and only requires a fraction of the electrical current demanded of the Leslie motors. For this reason, it is relatively safe to send that small electrical current through long lengths of Leslie speaker wiring, and run back to the organ console.

    Brief Tutorial of Leslie 122 Switching - The Organ Forum

    organforum.com
    What should I do if my Leslie speaker is not working?
    Clean the 12AU7 tube contacts with a small amount of DeOxit, CRC QD, or other high quality solvent and reinsert the tube. If the issue persists, test with a different Leslie speaker cable if one is available. Does the relay audibly click when switching speeds? (A small 1 - 2 second delay is normal on 122 Leslies. Longer delay could be a problem)

    Brief Tutorial of Leslie 122 Switching - The Organ Forum

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  9. Reddit
    https://www.reddit.com/.../foot_switch_for_leslie_help

    Foot switch for Leslie help. : r/hammondorgan - Reddit

  10. Telecaster Guitar Forum
    https://www.tdpri.com/threads/building-a-leslie-cabinet-pics.131501

    building a leslie cabinet (pics!) - Telecaster Guitar Forum

  11. diystompboxes.com
    https://www.diystompboxes.com/smfforu…

    Using Relays to Engage Leslie Motors

    Jul 26, 2006 · I'm working on a leslie project too and I want to make it foot controlable. Since I don't want the relays switching current flow through the remote cable and want to use status LED's, I have designed this circuit.

  12. The Canadian Guitar Forum
    https://www.guitarscanada.com/threads/homemade...

    Homemade Leslie...foot switch - The Canadian Guitar Forum

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