Music (Data) transfer by IR by amplification | Projects › Projects › Music (Data) transfer by IR by amplification This topic has 1 reply, 2 voices, and was last updated 9 years, 9 months ago by Ashutosh Bhatt. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts December 1, 2014 at 3:13 pm #3331 Omar DaoudParticipant In the project that posted on the website. Which op-amp that used for this circuit? December 1, 2014 at 6:08 pm #12385 Ashutosh BhattParticipant you can use LM741 or LM324 or any other op-amp IC Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In