04-17-2015, 07:42 PM
How you check a power xfmr depends on whether you have bought the radio, or you are asking a seller to do it, or the seller has done it before you asked.
The basic way is what Bob just said, just measure the windings with an Ohmmeter against the known values.
The best way is applying voltage and measuring outputs without rectifier and other tubes plugged in.
This is best done using a variac, so if the xfmr is shorted you do not smoke it.
If, as Bob noted, the seller volunteered plugging it in and reports lights and static, it is good, though thos is usually done against the accepted practice of not powering up a unrecapped and orherwise unchecked radio.
The basic way is what Bob just said, just measure the windings with an Ohmmeter against the known values.
The best way is applying voltage and measuring outputs without rectifier and other tubes plugged in.
This is best done using a variac, so if the xfmr is shorted you do not smoke it.
If, as Bob noted, the seller volunteered plugging it in and reports lights and static, it is good, though thos is usually done against the accepted practice of not powering up a unrecapped and orherwise unchecked radio.
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.
