| This little circuit, designed and marketed as a kit by ELV, provides a visual warning when the maximum drive power to a loudspeaker is...
| This little circuit, designed and marketed as a kit by ELV, provides a visual warning when the maximum drive power to a loudspeaker is...
| This sound mixer, designed and marketed as a kit by ELV, allows a variety of fading, sound dubbing and voice-over effects to be realized....