Quote:
Originally Posted by DonaldStott
Supplementary Question - while I appreciate that the valve heaters are connected in series I'm often confused by the seemingly random connections between the heater pins on valves and associated chassis links. Does anyone have a heater chain wiring diagram for the Bush DAC90A?
|
I don't have a wiring diagram but there's lot's of under chassis photo's on here and other places, looking at one in particular here's what I can make out starting from the dropper output to the heater chain:
From dropper output to Pin 1 of V5, Pin 8 of V5 to Pin 1 of V4, Pin 8 of V4 to Pin 1 of V2, Pin 8 of V2 to Pin 1 of V1, Pin 8 of V1 to Pin 8 of V3, Pin 1 of V3 to chassis.
EDIT: Post crossed.
Lawrence.