Glasshouse / Elma 1-pole 24-way switch / Mono Shunt Stepped Attenuator
The Elma 04-1133 is a make-before-break type, 1-pole 24-way switch. So, it features one more step to the 23 counterparts. It is Swiss-made and has a quality feel, a non-magnetic bodied switch with 3-micron gold plated contacts over copper alloy. All contacts are enclosed to avoid noisy contacts as a result of dust.
This version offers 24 volume positions from mute to near total volume through our tried-and-tested 2dB step values of resistors. The switch's front does possess a "non-turn" lug of 3mm squared that protrudes from the front panel, close to the bush. See the datasheet below. If not required, this can be removed with a file.
We offer the option to choose from 16 different resistor types for this kit.
SERIES/LOAD RESISTOR FOR SHUNT TYPE
The series/load resistor of the shunt stepped attenuator range is worth discussing. All the signal passes through this resistor no matter your position on your volume control. So, this resistor is worth an upgrade. A popular choice is the Charcroft Z-Foil range or Audio Note Non-Magnetic Tantalum. If you wish to upgrade them, add them to your cart. x1 for a each mono, x2 for a stereo and x4 for a balanced. Choose the resistance close to the impedance of the stepped attenuator you buy. For example, for a Stereo Shunt 50K, you would have to add 2 off the CART 50K000B: 50K 0.4W Charcroft Z-Foil Resistor. If you are ordering a built version, mention in the comments box that you wish to have them fitted.
Dimensions
Shaft: 6mm diameter x 15mm length
Bush: 10mm diameter x 11mm length
Body, including resistors fitted (internal part): 33mm x 40mm (oval shaped) x 30mm height
PRICE (1 off) 10K, 20K, 25K, 50K, 100K, 250K
starting at £55.57+vat+p&p
For the 100K 0.25W and 0.5W Takman Metal & Carbon versions, we supply a 91K load resistor.
For the 10K 0.25W and 0.5W Takman Metal & Carbon versions, we supply a 10K 1W load resistor.
We can only supply the 50K, 100K and 250K options for the various Audio Note resistor types.
We can only supply the 10K, 20K and 25K options for the Charcroft Z-Foil type.
Available as a kit or fully built. The build cost is an additional £20.
For 0.25W and 0.4W Charcroft resistor kit versions, supplied with
- Elma 1-pole 24-way switch
- Selected resistor set (22 resistors)
- 0.2m x HGG 0.5mm diameter wire
- 0.05m x 0.5mm PTFE sleeving
- 0.5m x Mundorf 3.8% silver/gold solder
For 0.5W and 2W AMRT resistor kit versions, supplied with
- Elma 1-pole 24-way switch
- Selected resistor set (22 resistors)
- 0.2m x HGG 1mm diameter wire
- 0.05m x 1mm PTFE sleeving
- 0.5m x Mundorf 3.8% silver/gold solder
the picture shows - 0.25W Takman Metal Film version with 1W Takman Metal Film load/series resistor fitted