# Event Details - **Event Name**: DIY - Euro Rack Madness - **Event Start and End Date**: Sun, 21 Dec, 2025 at 10:30 am – Sun, 21 Dec, 2025 at 02:00 pm - **Event Description**: Build one of these two Euro Rack modules: DIY Analog Tank Reverb — OR — PG-13 Passive GatesAbout this EventEuro Rack MadnessChoose one from these two Euro Rack modules:DIY Analog Tank Reverb — OR — PG-13 Passive GatesThe Cram Audio DIY Tank Reverb is an analog circuit that uses an actual spring reverb tank to gives you a lush reverb effect. The module offers control for Mix and Feedback allowing you to tailor the reverb from subtle to overdriven, with many interesting settings along the way, helping you to craft the unique tone required to set your composition apart from the crowd.The Cram Audio DIY Tank Reverb drives the reverb tank via discrete transistors to ensure rich clean reverb tone. The Mix potentiometer helps you to proportion the wet & dry signals and the feedback potentiometer helps to extend the natural decay of the reverb tank - almost to infinity if desired.Build your own reverb module. Learn and save. You will solder, assemble components, and customize your very own musical instrument. This is our most advanced DIY so far, but no prior experience soldering is necessary - bring your creativity and enthusiasm to learn more about effect pedals! Don't miss this opportunity to dive deep into the world of DIY electronics and create a unique and sophisticated effect pedal.The ??-?? ??????? ????? project is EuroRack compliant module. You’ll build a endlessly useful, passive dual gate with a tone control. Feed it a signal and use CV to control its amplitude!If you need help with your circuit, your instructors have 20+ years’ experience building, designing, and troubleshooting analog and digital circuitry. So rest assured that we will get your effect working and get you jamming. Expect this workshop to last 3 – 4 hours. You’ll leave with a working module and a good handful of electronics knowledge. I hope to see you there! - **Event URL**: https://allevents.in/waltham/diy-euro-rack-madness/100001964544683031 - **Event Categories**: workshops, live-music - **Interested Audience**: - total_interested_count: 0 ## Ticket Details - **Ticket Price Range**: min: 110, max: 110, currency: USD ## Event venue details - **city**: Waltham - **state**: MA - **country**: United States - **location**: Small Bear Electronics - **lat**: 42.3704448 - **long**: -71.24635409999999 - **full address**: Small Bear Electronics, 167 Prospect Street, Waltham, United States ## Event gallery - **Alt text**: DIY - Euro Rack Madness - **Image URL**: https://cdn-az.allevents.in/events9/banners/b3ec6a14e8c7157e0bd90d77372425cbe2d09183723a00ab86f2f6a9137fc3ab-rimg-w612-h612-dc200213-gmir.jpg?v=1762845193 ## FAQs - **Q**: When and where is DIY - Euro Rack Madness being held? - **A:** DIY - Euro Rack Madness takes place on Sun, 21 Dec, 2025 at 10:30 am to Sun, 21 Dec, 2025 at 02:00 pm at Small Bear Electronics, 167 Prospect Street, Waltham, United States. - **Q**: Who is organizing DIY - Euro Rack Madness? - **A:** DIY - Euro Rack Madness is organized by Cram Audio. - **Q**: Who is this event for? Is it right for me? - **A:** DIY - Euro Rack Madness is ideal for curious learners, students, and skill-builders looking to gain hands-on knowledge and practical expertise in a focused, interactive setting. Whether you're a first-time attendee or a longtime enthusiast in Waltham, this event is thoughtfully curated to deliver a standout experience worth every moment. If DIY - Euro Rack Madness sounds like your kind of event, don't wait - spots fill up fast. ## Structured Data (JSON-LD) ```json [ { "@context": "https://schema.org", "@type": "Event", "name": "DIY - Euro Rack Madness", "image": "https://cdn-az.allevents.in/events9/banners/b3ec6a14e8c7157e0bd90d77372425cbe2d09183723a00ab86f2f6a9137fc3ab-rimg-w612-h612-dc200213-gmir.jpg?v=1762845193", "startDate": "2025-12-21", "endDate": "2025-12-21", "url": "https://allevents.in/waltham/diy-euro-rack-madness/100001964544683031", "location": { "@type": "Place", "name": "Small Bear Electronics", "address": { "@type": "PostalAddress", "streetAddress": "167 Prospect Street", "postalCode": "02453", "addressLocality": "Waltham", "addressRegion": "MA", "addressCountry": "US" }, "geo": { "@type": "GeoCoordinates", "latitude": "42.3704448", "longitude": "-71.24635409999999" } }, "eventAttendanceMode": "https://schema.org/OfflineEventAttendanceMode", "description": "Build one of these two Euro Rack modules: DIY Analog Tank Reverb — OR — PG-13 Passive Gates", "offers": [ { "@type": "AggregateOffer", "availability": "https://schema.org/InStock", "priceCurrency": "USD", "availabilityStarts": "2026-04-27", "availabilityEnds": "2025-12-21", "validFrom": "2026-04-27", "lowPrice": "110.00", "highPrice": "110.00", "price": "110.00", "url": "https://allevents.in/waltham/diy-euro-rack-madness/100001964544683031" }, { "@type": "Offer", "availability": "https://schema.org/InStock", "priceCurrency": "USD", "availabilityStarts": "2026-04-27", "availabilityEnds": "", "validFrom": "2026-04-27", "url": "https://allevents.in/waltham/diy-euro-rack-madness/100001964544683031", "price": "110.00", "name": "DIY Euro Rack Reverb" }, { "@type": "Offer", "availability": "https://schema.org/InStock", "priceCurrency": "USD", "availabilityStarts": "2026-04-27", "availabilityEnds": "", "validFrom": "2026-04-27", "url": "https://allevents.in/waltham/diy-euro-rack-madness/100001964544683031", "price": "110.00", "name": "PG-13 Passive Gates (S3 Series)" } ], "organizer": [ { "@type": "Organization", "name": "Cram Audio", "url": "https://allevents.in/org/cram-audio/25212555", "description": "Cram Audio Technologies regularly offers electronics building workshops. It can be at your location, or ours. These projects work well for many enthusiast groups. I’m glad to answer your questions and help to develop successful DIY session for you, your team and I." } ] } ] ```