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Based around the revolutionary asymmetrical clipping circuit from the OD-1 Overdrive—one of the three original BOSS compact pedals from 1977—the SD-1 delivers rich, smooth, and highly musical overdrive tones that continue to inspire guitarists everywhere.

The SD-1 is a light, affordable, high-performance single-seat aircraft renowned worldwide for its versatility in microlight, SSDR, LSA, and EXPERIMENTAL categories. Built with a durable mix of wood, composites, and XPS foam, it offers excellent performance, fuel efficiency and unmatched affordability for recreational pilots and amateur builders.

捷龙一号（Smart Dragon-1，简称SD-1）是中国航天科技集团有限公司一院所属中国长征火箭有限公司研制的一款小型四级固体运载火箭，也是中国航天科技集团有限公司“龙”系列商业运载火箭中的首发箭。火箭总长19.5米，箭体直径1.2米，起飞重量约23.1吨，500公里 ...

2023年1月16日 · Boss developed the SD-1 as an improved version of the OD-1 Overdrive by adding a tone control and making a few tweaks to the circuit. Tone snobs can wax poetic about how certain component changes over the years have affected its tone, but the truth is a new SD-1 doesn’t sound dramatically different from an original early ’80s model, and ...

自 1981 年发布以来，主力产品 SD-1 Super Overdrive 一直是不同音乐风格音乐人的核心过载效果器。 基于 OD-1 Overdrive 革命性的非对称削波电路（1977 年 BOSS 首发三款单块效果器中之一），SD-1 提供了丰富、流畅和高度音乐化的过载音色，继续激励着世界各地的吉他手。

bentone sd-1 是一种高效能有机膨润土，是自活化，易分散的触变型增稠剂和防沉剂，适用于中低极性的溶剂系统中。 物化数据： 组成 有机改性膨润土，易分散型

sd-1系列是主要为用于石油精炼、石油化工厂等的安全保护、防灾而开发的小型轻量的智能型气体检测器。 本产品的产品阵容中包括可燃气体、毒性气体及氧气的气体检测器，利用智能功能进行自我诊断等。

2023年11月25日 · The SD-1 goes there by design. By using an unequal number of diodes in its positive and negative clipping rails — two in one, one in the other — the SD-1 induces asymmetrical clipping relatively early in the signal chain, producing a slightly jagged, granular drive tone that slices through the mix and really perks up the ear.

The legendary Boss SUPER OverDrive SD-1 Pedal has been delivering genre-defining overdrive tones for over 40 years. This hardworking stompbox uses Boss's proprietary asymmetrical clipping circuit to produce rich, creamy overdrive reminiscent of a cranked tube amp.