EZ80 filament
Moderators: zaphod_phil, CurtissRobin, colossal
- plook
- Newbie
- Posts: 58
- Joined: Wed 12/06/06 2:00 am
- Location: England
EZ80 filament
Does an EZ80 rectifier use 1 x 6v filament on one leg and 0 on the other, or does it take 2 x 3v on both legs?
I am messing around with an old Selmer amp and the filament supply is:
3.4v-0-2.8v and this feeds all heaters across all tubes which are:
1 x EZ80
1 x EL84
1 x 12AX7
I want to copy the amp and need to get some transformers made for it and i am not sure what to request for the heaters 2 x 3v or 1 x 6v.
I am messing around with an old Selmer amp and the filament supply is:
3.4v-0-2.8v and this feeds all heaters across all tubes which are:
1 x EZ80
1 x EL84
1 x 12AX7
I want to copy the amp and need to get some transformers made for it and i am not sure what to request for the heaters 2 x 3v or 1 x 6v.
0 x
- zaphod_phil
- Builder, Admin
- Posts: 15208
- Joined: Wed 03/19/03 2:00 am
- Location: YYZ
It needs a single 6.3V AC supply across the pair of pins, the same as with an EZ81. Whether you want the heater winding on the PT to be centre-tapped, or you want to use a pair of resistors to create a virtual centre tap, is separate matter not related to the rectifier itself.
However single-ended Selmer amps are not a topic we cover here on 18watt.com, so I recommend SEwatt.com for any further discussion about this amp
HTH
However single-ended Selmer amps are not a topic we cover here on 18watt.com, so I recommend SEwatt.com for any further discussion about this amp
HTH
0 x
Nature abhors a clean tube amp