{"title":"001 Circuit Series","description":"\u003cp\u003eExplore, poke, and prod some classic effect circuits with the goal of learning how they work. After your explorations, keep these tools handy as they also serve as fast prototyping jigs for creating your own circuit recipes in a flash.\u003c\/p\u003e","products":[{"product_id":"common-emitter-explorer-board-kit-v2","title":"Common Emitter Explorer Board Kit [v2]","description":"\u003cp\u003eThis kit for the \u003cstrong\u003eCommon Emitter Explorer Board v2\u003c\/strong\u003e, \u003cspan style=\"text-decoration: underline;\"\u003eupdated and improved\u003c\/span\u003e from the original design, is an \u003cspan style=\"text-decoration: underline;\"\u003eunassembled\u003c\/span\u003e learning board kit for a beta-independent, common emitter amplifier. The simple circuit that underlies this explorer board is a great first circuit to digest and will prove to be a useful building block within more complex designs later on. \u003c\/p\u003e\n\u003cp\u003eDrop in any BJT transistor and start exploring. Grab your multimeter and probe the test points while adjusting the timpots to explore again and again. You can hope to achieve an intuitive understanding of transistor biasing, gain setting, and a better overall feel for how these components interact to produce a basic (and very useful) audio amplifier.\u003c\/p\u003e","brand":"Huntington Audio Labs","offers":[{"title":"PCB + all parts + trimpot adj. tool","offer_id":40964794318961,"sku":"HA-CEEB2-STD","price":32.0,"currency_code":"USD","in_stock":true},{"title":"PCB + all parts + trimpot adj. tool + printed guidebook","offer_id":40964794351729,"sku":"HA-CEEB2-GDBK","price":34.0,"currency_code":"USD","in_stock":true},{"title":"PCB only","offer_id":40964794384497,"sku":"HA-CEEB2-PCB","price":12.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0572\/8976\/9073\/files\/assembled_bfe8bd08-b122-47dc-b19c-358bd52359f2.jpg?v=1771509033"},{"product_id":"quick-sine-sine-wave-generator","title":"Quick Sine - Sine Wave Generator","description":"\u003cp\u003eWhen I discovered that there were’t any inexpensive analog bench-top sine wave generators out there that reliably produced good sinusoids, I decided to build one for myself. I had previously tried a few of the cheap Amazon \/ Aliexpress signal generators only to discover unusably noisy signals or sine waves that were way too triangular.\u003c\/p\u003e\n\u003cp\u003eThe Quick Sine, while more limited in functions than these other devices, reliably produces a lovely sine wave without significant distortion. It's designed around a fairly simple Wien bridge oscillator network and tuned to offer you a selection of 9 different frequencies within the audio range. It will output a constant line level signal.\u003c\/p\u003e","brand":"Huntington Audio Labs","offers":[{"title":"PCB only","offer_id":41366492282993,"sku":"HA-QCKSNE-PCB","price":12.0,"currency_code":"USD","in_stock":true},{"title":"PCB + Parts","offer_id":41366492315761,"sku":"HA-QCKSNE-FUL","price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0572\/8976\/9073\/files\/spread_1fd5db5c-8b3d-4add-b3d6-0ed422d20a7b.jpg?v=1726164204"},{"product_id":"mighty-fuzz-explorer-board-kit","title":"Mighty Fuzz Explorer Board Kit","description":"\u003cp\u003eThe Mighty Fuzz Explorer Board is an unassembled learning board and prototyping kit to help you explore two different celebrated fuzz circuits (the Fuzz Face and the Tonebender) in a neat and organized way. Jumper wire spaghetti be damned. \u003c\/p\u003e\n\u003cp\u003eUse some tried and true part number\/resistor value combinations and then poke, prod, and measure this thing until you get a feel for the push and pull of these circuits.  \u003c\/p\u003e\n\u003cp\u003eOnce you've gotten a feel for it with standard part numbers and values, you can use this board to quickly hunt for and dial in ideal calibrations for any BJT transistor part numbers in your collection. Dig out a pair of transistors, check the datasheet (unless you want to just shoot from the hip), and tweak away as you try to dial in your ideal fuzz.\u003c\/p\u003e\n\u003cp\u003eBeyond learning the basics, this explorer board is a great way for fuzz pedal builders to quickly calibrate a circuit around the parts of their choosing before \"boxing one up\" as they say.\u003c\/p\u003e\n\u003cp\u003eIf you're feeling adventurous you may also be able to tap any of the 14 test points to expand the circuit design by adding your own modifying elements, stages, etc. at these junctures.\u003c\/p\u003e","brand":"Huntington Audio Labs","offers":[{"title":"Default Title","offer_id":41487949627505,"sku":"HA-MFE-STD","price":78.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0572\/8976\/9073\/files\/full-spread-1_f372be32-9d48-48a5-926c-dc8741514c06.png?v=1762977782"}],"url":"https:\/\/shop.huntingtonaudio.com\/collections\/circuit-series.oembed","provider":"HA! Labs","version":"1.0","type":"link"}