ELKA 505 SOLIST Vintage (1978) Mono Synth with 'MOOG' Filter

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"This is a combination preset/variable synth. It has 11 preset sounds with a wide mix of tones but when you switch on the 'Variations' button you can alter the preset sound with a variety of sound modifiers, including...

Octave Down
Bend
Vibrato
Filter
VCF
VCA

This combination of differing preset tones and modifer controls provides a surprisingly wide array of sounds. Of course, this synth is aimed squarely at melody duties and is not particularly good for fx or weird synth noises. However, as a melodic synth it has character and real power. This is probably largely due to the Moog type ladder filter in this synth, copied from the one used in the Minimoog (later Elka keyboards did not feature this filter as Moog served notice on Elka to cease and desist copying their tech!)"