02-11-2018, 09:19 AM
With buck/boost modules available from China for 99p and diodes, 1N4007s for pennies a hundred, changing the heater voltage to use "P" valves is a cinch.
Even arranging a 300mA chain and converting all the valves fro "E" to "P" would be possible, DC heater supply an advantage too.
I've run "P" valves with heater voltages a little bit over 6.3v on the 6.3v supplies and they seem to work OK.
Sam.
Even arranging a 300mA chain and converting all the valves fro "E" to "P" would be possible, DC heater supply an advantage too.
I've run "P" valves with heater voltages a little bit over 6.3v on the 6.3v supplies and they seem to work OK.
Sam.
Boater Sam.
