Ive built a push pull 6V6 amplifier for 15watt output power. My problem is the audio impedance matching transformer. I cannot find one sutable, and dont have the money to spend on buying one. The transformer I need has to have a 8000-ohm primary impedance and 8-ohm secondary impedance. I was wondering, since this transformer is a 1000:1 ratio, couldent I find another one that has the same ratio (ex. 1000-ohm prim. 1-ohm sec) and use that? or would I risk over powering the tubes and burning out the amp?