Glasshouse / Elma 1-pole 24-way switch / Mono Shunt Stepped Attenuator
The Elma 04-1133 is a make-before-break, 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 body, and 3-micron gold-plated contacts over a copper alloy. All contacts are enclosed to prevent noisy contacts caused by dust.
This version offers 24 volume positions from mute to near-total volume, with our tried-and-tested 2dB resistor step values. The switch's front panel does have a "non-turn" lug measuring 3mm square that protrudes from the panel, close to the bush. See the datasheet below. If not required, this can be removed with a file.
We offer 16 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 would like 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 £70.86+vat+p&p
For the 100K 0.25W and 0.5W Takman Metal, we supply a 91K load resistor.
For the Takman Metal 0.25W and 0.5W 10 K, 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 the 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 0.5mm diameter wire
- 0.05m x 0.5mm PTFE sleeving
- 0.5m x Mundorf 3.8% silver/gold solder
The picture shows - Ohmite Little Demon Carbon Composite Resistors fitted
Please note that due to the elevated price of silver, we now supply 0.5mm-diameter HGC wire as standard.