# AO Gate Grinder

**URL:** <https://lookmumnocomputer.discourse.group/t/ao-gate-grinder/960>\
**Category:** KOSMO MODULES\
**Created:** [May 19, 2020, 1:56am UTC](https://lookmumnocomputer.discourse.group/t/ao-gate-grinder/960 "2020-05-19T01:56:18Z")\
**Posts on this page:** 1\
**Showing post:** 16

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**Author:** ![fredrik](https://yyz2.discourse-cdn.com/free1/user_avatar/lookmumnocomputer.discourse.group/fredrik/32/682_2.png) [@fredrik](https://lookmumnocomputer.discourse.group/u/fredrik)\
**Post date:** [June 5, 2020, 8:44am UTC](https://lookmumnocomputer.discourse.group/t/ao-gate-grinder/960/16 "2020-06-05T08:44:31Z")

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Optimizing for price and availability is also a thing; e.g. TL072 is cheaper at Tayda, and they don’t have 4572 (Mouser has it, but it’s more expensive than a 4069 and 4071 combined). The fewer different components you use, the easier sourcing and BOM/stock management gets (cf. earlier discussions about trivial designs that require E96 resistors 😃).

(somewhat related, Dave Jones posted [a video on BOM optimization](https://youtu.be/RwVzLOI4cmA) recently, even if that mostly focuses on resistor & capacitor values and SMD machine constraints.)

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