10PCS PS-22F02 A03 6Pin Right Angle PCB Latching Push Button Switch DPDT Double Pole Self/No-Locking Key Power Switches(7)

The service manual specs a PS-22F02 switch bee.mif.pg.gda.pl/ciasteczkowypotwor/%23pro_audio/VOX/Vox%20VR30%20Service%20Manual.pdf Googling that returns dozens of hits. Looks like you can buy a 10 pack on amazon, grab a single from eBay, or take a chance on a number of random parts suppliers where it’s cheap. https://www.amazon.com/PS-22F02-Latching-Button-No-Locking-Switches/dp/B0GR8MN9MX https://www.ebay.com/itm/176438632958 https://electropeak.com/ps22f02-direct-key-switch