In a message dated 1/24/2007 12:23:01 PM Eastern Standard Time,
w0jx@yahoo.com writes:
Steve:
Another approach is to wire the two filaments in series (the TL-922 does
this I believe).
Then you could use 24 volt xformer drawing current equal to one tube. Put a
resistor in the primary lead to get some inrush protection.
We can just simply turn right or we can make 3 lefts, the end result is the
same, but one approach is much more direct and simple. A 10V 10A filament
transformer is a common item ( I have a couple) I offered one to Steve, but he
says he found one already. Homebrewing is a great way to save money, but it
is my opinion that "the right part for the job" should be a main concern.
Some of us homebrew better than commercially available quipment and some of us
really give homebrewing a bad name. One saves tons of money building their
own, I think "the right part for the job" should be in front of saving a
couple of bucks. If something is totally unavailable then perhaps a "work
around"
is neccesary. On the other hand, I've seen guys spend all sorts of money on
"over kill" parts i.e. using a vaccuum variable when a good air variable
will work just as well for a fraction of the cost. With power levels less
than
2KW I see no need for them. I KNOW in some instances they come in handy for
160 -10 M. Many do not appreciate good homebrewing and some homebrewing is
simply junk. Lou
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|