02-07-2026, 03:38 PM
See the tubes they were used with.
K-7 seems to be used with 42.
then you simply compare the tubes' output inpedances for the same output type (provided they were both single ended, or both pushpull) and see if there is a difference.
You should not use push-pull transformer for SE and vice versa.
K-7 seems to be used with 42.
then you simply compare the tubes' output inpedances for the same output type (provided they were both single ended, or both pushpull) and see if there is a difference.
You should not use push-pull transformer for SE and vice versa.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
