Hi,
It was laying around for years without tubes except the little tube for the key Up circuit.
Ah over a decade ago re-tubed to 24LQ6 3 Phantoms with 12volt relays & PNP TO-220 high side transistor switch. regulated DC 24v filaments.
Perhaps pre-Alzheimers. forgot a lot of tube theory.
This beast uses 2x110v DC relays. Measured from the low side of the relays a staggering 187v DC !!!!
Grounded to Chassis. The schematic on CB Tricks is for the transistor key up circuit and 12v relays....
D&A Phantom 500 resurrection & Re-Tube Need Help hit a Big BumP
It was laying around for years without tubes except the little tube for the key Up circuit.
Ah over a decade ago re-tubed to 24LQ6 3 Phantoms with 12volt relays & PNP TO-220 high side transistor switch. regulated DC 24v filaments.
Perhaps pre-Alzheimers. forgot a lot of tube theory.
This beast uses 2x110v DC relays. Measured from the low side of the relays a staggering 187v DC !!!!
Grounded to Chassis. The schematic on CB Tricks is for the transistor key up circuit and 12v relays....
D&A Phantom 500 resurrection & Re-Tube Need Help hit a Big BumP