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Transistors IRF5305 1. 100% original, but naturally expensive, $1.5 per 1 pc. https://www.digikey.com/product-detai... 2. Regular, Chinese, $1.7 per 10 pcs. http://ali.pub/3xqb23 Printed circuit board, diagram, gerber archive: https://yadi.sk/d/lQSkQgur5ZxadQ ====================================== Our VK group https://vk.com/ssb_tsv Useful radio components and goods for radio amateurs https://vk.com/r_goods Multifunctional tester for beginners https://alii.pub/6vis9s Universal and high-precision multimeter https://alii.pub/6visic Budget laboratory power supply https://alii.pub/6visor High-quality laboratory power supply https://alii.pub/6visr3 Linear laboratory power supply https://alii.pub/6visvr Chinese clone of RTL SDR receiver from 25 MHz https://alii.pub/6viu5n (to receive HF frequencies, you need to solder a converter!) Chinese clone of RTL SDR with a converter from 100 kHz https://alii.pub/6viu6m (for good reception, you need a full-size HF antenna outdoors) 12-bit SDR receiver https://alii.pub/6vius0 Infrared camera + macro lens https://alii.pub/6viutk (an indispensable device for design and repairs, you can immediately see where, which and how much the radio component is heating up) Oscilloscope for the little ones: https://alii.pub/6zf5eh (you can watch LF signals, but the transistor tester in it is excellent) 8-bit Oscilloscope for a novice radio amateur https://alii.pub/6zf5fg 12-bit Oscilloscope for an experienced radio amateur (meander up to 15 MHz - like on a color TV) https://alii.pub/6zf5f9 Homemade converter on a factory printed circuit board (UpConverter for SDR): • Homemade SDR upconverter 1.1 on a... The receiver can receive without a converter, but with it it is better.