INDUSTRIAL R-390A tube preamplifier output transformer 10K : 600 CT ohm
PRI : 10K (DC-20mA)
SEC : 600 ohm (150+150 ohm)
Test OK.
Both transformers were confirmed to be of the same brand; one of them had been repainted.
1 pair = $100
International shipping.
Estimated arrival time, Asia 5-12days.
Europe and the United States and Canada 12-35days.