Dual Op Amp Tester circuit

[MartyJ1963]

Hi all,,,,I found this little 'Op Amp Tester Circut' and thought it may be of interest to someone. I've only used it to test NE5534 but I assume it's able to test other Dual op amps although I haven't tried others yet. Best regards,,,Marty

[kt315]

just for 2 euro you get a tester for ne555
https://www.banggood.com/DIY-Digital-Electronic-NE555-Multi-wave-Signal-Generator-DIY-Kit-Electronic-Components-Parts-p-1363174.html?rmmds=myorder&cur_warehouse=CN

[kt315]

just for 0.88 usd you get a tester for dual

https://www.aliexpress.com/item/LM358-Breathe-Light-Lamp-Flicker-8pcs-5MM-Blue-LED-Flashing-Lamp-Parts-DIY-Electronic-Kit-Suite/32891071970.html?spm=2114.search0104.3.99.7f901551r2X62z&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10068_319_317_10696_10084_453_10083_454_10618_10307_10820_10821_537_10303_10302_536_10902_10059_10884_10887_321_322_10103,searchweb201603_58,ppcSwitch_0&algo_expid=0fe3f85f-7436-42a3-aa8b-424d3b07e404-14&algo_pvid=0fe3f85f-7436-42a3-aa8b-424d3b07e404

https://www.aliexpress.com/item/LM358-Breathing-Light-Parts-Electronic-DIY-Fun-Making-KIT-Blue-Flashing-Lamp-Electronic-Production-Suite/32890038794.html?spm=2114.search0104.3.176.7f901551r2X62z&ws_ab_test=searchweb0_0,searchweb201602_4_10065_10068_319_317_10696_10084_453_10083_454_10618_10307_10820_10821_537_10303_10302_536_10902_10059_10884_10887_321_322_10103,searchweb201603_58,ppcSwitch_0&algo_expid=0fe3f85f-7436-42a3-aa8b-424d3b07e404-25&algo_pvid=0fe3f85f-7436-42a3-aa8b-424d3b07e404