Re: RM503 - The story continues.

Denton, Adam (Exchange)

Hey, I think that's a great idea, esp. since the original
6.3V is working (just not sufficiently insulated).
I will probably have to use more turns than are on it now
because the reactance will be too low to apply to a secondary.
(for example, if we have say a 120V : 6V transformer, the
turns ratio is 20:1. This means the reactances are 400:1,
so applying 6V to the secondary "as is" will result in
a 20-fold increase in the (so-called "magnetizing current")
VAR thru the 'former unloaded. However your general approach
makes a lot of sense -- in fact I think I'm sold!! I will
maybe strip all off and wind 2 new secondaries (well I guess
one will be primary ;-) ) both with more turns than the existing
sec but fewer than the existing 120V primary. Good thinking!

<<It might be easier to use the original 6.3 main xfmr winding to drive a
separate 1:1 special (put a few extra turns on the secondary-always handy!)
that you rewind on an old fil xfmr core---it will have only a few turns on
both windings and it should be much easier to keep 'em well insulated from
each other.
Dave Brown
Christchurch, NZ>>

Bear Stearns is not responsible for any recommendation, solicitation,
offer or agreement or any information about any transaction, customer
account or account activity contained in this communication.

Join to automatically receive all group messages.