Hi everyone,
I have a question regarding a different use of Lundahl Filament Choke LL2733. It consists of 2 windings, so instead of using two chokes, I'd like to know if it's possible to use Lundahl Filament Choke LL2733 as below:
If it's ok then how much is the inductance of each winding and is total inductance of the windings remain the same?
Thanks,
I have a question regarding a different use of Lundahl Filament Choke LL2733. It consists of 2 windings, so instead of using two chokes, I'd like to know if it's possible to use Lundahl Filament Choke LL2733 as below:
If it's ok then how much is the inductance of each winding and is total inductance of the windings remain the same?
Thanks,
Good question! Between In and the middle tap you will have quite some ripple attenuation: in has a lot of ripple, the middle tap much less due to LC filtering, so that ripple "develops" over the first half of the choke. The problem I see is that it will couple to the second half of the choke through the core, so no good!
It will act as a transformer. The higher ripple amplitude from the first half will be shared to the second half. You will have somewhat leakage inductance limiting the sharing of the ripple.
Question: your intention for the suggested schematic is to use the second half (pin 13 to pin 4) of the choke as high impedance source for the cathode of a diretly heated tube?