How to Charge Hypno Devices for Gunter in Graveyard Keeper 2

Hypno Devices are tools used to help with PR (Panic Reduction) management in Graveyard Keeper 2. You can buy one from Gunter at his shop in the Main Port after you liberate it from zombies, but before you can use it, you'll have to charge it at a Formulation Bench using Faith. Once charged, you can use Hypno Devices on the PR Machine to reduce panic and increase the number of sermon attendees in Graveyard Keeper 2every time you hold one, netting you more Faith and money.