I am looking to find a 5v to ≈70v dc-dc converter in the 1w range or the equivalent transformer + diodes. This is for a bio stimulation device and I need a high voltage and low amperage. However, not having spent years researching and buying electrical components, I'm a little uncertain where to look and for what exactly to look for. The requirements are fairly straight forward but turning theory into something that is actually on the market is difficult without having been in the industry for a while. Thanks.