Telerad Radio (Techniek Radio/TV)

door Subhabrata Dutta , India, 20.12.2015, 06:26 (3265 dagen geleden)
Bewerkt door Subhabrata Dutta, 20.12.2015, 06:33

I have found one old Philips round CAN shaped output transformer. I measured it by the following way please tell me will it be OK of my radio set where in audio EBC81 and single EL84 tube is there.

I have measured :
Given voltages Primary 12v AC
Secondary .46v AC

It means winding ratio : 26 :1
Square of it will be:680 :1
That means if I put a 8 ohms secondary load primary impedance is 5444 ohms
or if i put 4 ohms secondary load primary impedance is 2722 ohms
So is it ok with 8 ohms speaker for my set
and also suggest me if i put 4 ohms speaker what can happen what is the difference.
Please correct me if i calculated anything wrong

Waiting for your reply