Hi. Newbie here. I need to replace a faulty NPN transistor in a guitar pedal. It's a mid 1970s C828 and 1 of 4. I have a modern replacement 2SC828 which appears compatible but on my DMM the hFE for the new one is about 300 and the older transistors around half that. So the question is whether modern equivalents are the same spec as older components? Thanks for any help.