One of my friend who own WE16A using WE555 drivers with Selenium power supply
need to add field coil tweeters for extend higher range in his system.
So I remember that I have seen a nice looking tube power supply in Jeffrey Jackson's blog.
And my friend totally agree with this kind of tube & appearance.
He's select field coil tweeter from Atelier Rullit that has higher impedance than WE555 driver.
Atelier Rullit said this tweeter need voltage between 120 - 200 VDC for operation.
So I just design power supply to supply about 165 VDC with voltage regulator tubes.
0A3 (75V) series with 0B3 (90V) to stabilize output voltage.
Main rectifier tubes using large WE355A Thyratron tube with grid as plate.
Appearance.
Plug with 2 of 0B3 tubes for took photo.
Atelier Rullit Field Coil Tweeter.
Test with real speaker system.
2 of Altec 515B in 817B cabinet style & WE16A with WE555 field coil driver.
Blue glow in large Western Electric balloon tubes.
Indicate voltage & current for one channel.
Do not compare with other types of power supply but for now this power supply work well
and field coil tweeter sound very good.
Cheers!!!
