SKU: DACT-CT3-ELMA-Selector-Switches ELMA Rotary Selector Switch

ELMA Rotary Audio Selector Switches

ELMA make high quality selector switches, these are the same mechanism that DACT used in the CT-3 switches. They are high precision, Swiss made switching mechanisms, and are non-shorting (break before make) type of switch making sure neither of the input sources will be short-circuiting each other when the switch is operated. Very compact audio selector switches that switch between 3 or 6 sources (depending on model). All contacts and connections are gold plated for long life even in the most challenging environments. They can be used in all sorts of applications, projects, upgrades or manufacturing. Switch audio signals or other types of signals with this high precision, quality multi-position rotary switch.

Extra stop screws are available if you wish to modify from the standard default stop positions.

Available Versions:

• Elma 2 poles x 6 positions (other position options available above)
  • 2-pole switch
  • Solder eyelets for wire connections
  • 6, 5, 4, 3 or 2 position options
  • Non-shorting
  • 6mm round shaft
  • Switches up to 2 non-balanced channels, signal only
• Elma 4 poles x 3 positions (other position options available above)
  • 4-pole switch
  • Solder eyelets for wire connections
  • 3 or 2 position options
  • Non-shorting
  • 6mm round shaft
  • Switches up to either:
    • 2 non-balanced channels with signal and ground simultaneously, or
    • 4 non-balanced channels, signal only, or
    • 2 balanced channels, + and - signal only (excl. ground)

Typical Applications:

• Input selector in DIY / do-it-yourself hi-fi and audio projects.
• Input selector switch in active or passive pre-amplifiers.
• Selector switch in professional audio equipment.
• Switch for long lifetime applications.
• Test equipment selector switch.

Connections:

Elma 2x6, 2 poles, 6 positions:

Seen from the rear side (connector side)

Pin no. Connection - example only (input selector) 1 Output, channel 1, signal 2 Input, channel 1, signal, source 1 3 Input, channel 1, signal, source 2 4 Input, channel 1, signal, source 3 5 Input, channel 1, signal, source 4 6 Input, channel 1, signal, source 5 7 Input, channel 1, signal, source 6 8 Output, channel 2, signal 9 Input, channel 2, signal, source 1 10 Input, channel 2, signal, source 2 11 Input, channel 2, signal, source 3 12 Input, channel 2, signal, source 4 13 Input, channel 2, signal, source 5 14 Input, channel 2, signal, source 6

Elma 4x3 - 4 poles, 3 positions:

Seen from the rear side (connector side)

Pin no. Connection - example only (input selector) 1 Output, channel 1, signal 2 Input, channel 1, signal, source 1 3 Input, channel 1, signal, source 2 4 Input, channel 1, signal, source 3 5 Output, channel 1, ground 6 Input, channel 1, ground, source 1 7 Input, channel 1, ground, source 2 8 Input, channel 1, ground, source 3 9 Output, channel 2, signal 10 Input, channel 2, signal, source 1 11 Input, channel 2, signal, source 2 12 Input, channel 2, signal, source 3 13 Output, channel 2, ground 14 Input, channel 2, ground, source 1 15 Input, channel 2, ground, source 2 16 Input, channel 2, ground, source 3 17 Input, channel 2, signal, source 4

Specifications:

Antistatic Charges

To avoid noises from possible antistatic charges, we suggest that one of the following two precautions is taken:

• Mounted with electrical connection between its housing and the equipment chassis, or
• A 1 MOhm resistor is connected between the CT3 click-house and equipment ground.