[Amps] Filament Choke Inductance
Fri, 3 Jan 2003 12:13:06 -0500
Can anyone tell me what inductance do I need in the filament choke for a
3CX3000A7 for 80M. I built one back in the mid 90's and had to wind one
ferrite 1/2" rods in order to keep the AC out of the tube(or was it to keep
the RF out of the transformer?). I have some filament chokes wound made
wire and they measure ±45uh. I guess I could always put 2 of these chokes in
series but they would take up more real estate under the chassis.
BTW, anyone interested in a swap, my 2 8877's with filament xfmr and
sockets and Teflon chimneys for a 3CX3000A7, socket and xfmr??
Thanks for all the advise on gluing up Silicone sheet into chimneys.