The order corresponds to the description, came for 19 days, thank you! The seller and goods I recommend! Заказ соответствует описанию, пришел за 19 дней , спасибо ! Продавца и товар рекомендую !
R4 is 330kΩ instead 330Ω as required, that is reason why output has no sinewave. The output connector is absence. Square wave has a terrible shape. IC doesn`t look like the image.