Something I can't appear to find an answer for.........
( Although I found info regarding 'Battery Powered' Vintage tube Radio's very interesting !)
' Can a separate 5 Volt / 3 Amp DC Supply be used for the Heater on a 5AR4 '.?
That is, something like this : https://cpc.farnell.com/ideal-power...pin-iec-vi/dp/PW04127?st=5 volt power supply
This one does have the 5volt -ve side attached to the Mains Earth, others don't.
I was just wondering if I could use a spare Marshall TX ( supplying the HT & 6.3 vac ) in a 1964 Vox AC30 that has blown its Mains TX.....with a separate DC supply mounted under its wooden shelf
just for the Rectifier Heater !
( Although I found info regarding 'Battery Powered' Vintage tube Radio's very interesting !)
' Can a separate 5 Volt / 3 Amp DC Supply be used for the Heater on a 5AR4 '.?
That is, something like this : https://cpc.farnell.com/ideal-power...pin-iec-vi/dp/PW04127?st=5 volt power supply
This one does have the 5volt -ve side attached to the Mains Earth, others don't.
I was just wondering if I could use a spare Marshall TX ( supplying the HT & 6.3 vac ) in a 1964 Vox AC30 that has blown its Mains TX.....with a separate DC supply mounted under its wooden shelf
just for the Rectifier Heater !
Attachments
The 5AR4/GZ34 has the heater tied to the cathode and must be able to float up to the HT voltage so the heater supply must be isolated and capable of withstanding a very high voltage to ground.
I wouldn't entertain the idea of a wall wart supply. I would purchase a new transformer and do the job properly.
The mains transformers in theses are very reliable, did someone fit the wrong value/type mains fuse in it?
I wouldn't entertain the idea of a wall wart supply. I would purchase a new transformer and do the job properly.
The mains transformers in theses are very reliable, did someone fit the wrong value/type mains fuse in it?
