Electronics Supplies for Rocketry

While looking for an altimeter arming switch, I came across this place: https://allelectronics.com
They sell switches, LEDs, connectors, wire/cable... too much stuff to list. There are no minimums and the prices are really inexpensive. Oh, and they ship FAST.

These guys have been around for a long time, I remember seeing their ads in the hobby electronics magazines in the 70's. Been to their store once, they have a lot of cool surplus stuff so it's fun to browse. There used to be several electronics surplus stores in SoCal, I think All Electronics is the only one left; the others have either gone out of business or gotten out of the surplus market and concentrated on industrial stuff. Apparently there isn't as much money to be made in hobby electronics as there used to be...

Allelectronics is indeed a good supplier. I've ordered from them many times.

However, when it comes to switches of all types that are unbelievably cheap but of good quality, this is my preferred source:

https://www.mpja.com/Switches-Electronic/departments/117/

I've ordered toggle switches from other discount electronics sources that are more expensive than those from MPJA, most notoriously in my experience from Electronics Goldmine, and they had plastic bodies of very low melting point plastic that would quickly allow the contact pin to wander due to plastic melting even after the short application of soldering heat, would jam mechanically or just stop making contact (after installation of course), had horribly low quality nuts and washers, etc., but my large quantity purchases of the much cheaper switches from MPJA have always been good quality items.