Here are the question IDs from the 2019-2023 general and 2020-2024 extra pools.
Vacuum tube amplifier tuning: E7B09, https://hamstudy.org/browse/E4_2016/E7B
Analog slow scan television signal components: E2B10, https://hamstudy.org/browse/E4_2020/E2B
Morse code shorthands: G2C02, https://hamstudy.org/browse/E3_2015/G2C