Twin Peak Filter
http://www.xn--klangbaukln-zfb.de/klangbau-in-koeln/twin-peak-resonator/
If you had an Unicorn Account you could see a chart with the price development of this module and the average price asked for this module.
Tte module is in very good condition. PM for questions and pictures. Shipping from Sweden to EU on buyers cost (about 15€ tracked, insured and signed for).
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