12-08-2007, 03:23 PM
The primary impedance of the original output transformer was 6700 ohms per Philco data; secondary impedance 0.7 ohm.
Using these figures...the closest match you are going to get will be by connecting the speaker voice coil leads to either terminals 1 and 3 or 5 and 6.
Universal audio transformers do not offer exact matching of output to speaker voice coil; instead, they offer "close enough" matching to enable their use in many different radio receivers.
These transformers have six terminals for the secondary connection to your speaker voice coil. You will use the two terminals that most closely match the output load impedance to your speaker voice coil impedance.
Use whichever combination sounds the loudest and best: Terminals 1 and 3, or 5 and 6.
Using these figures...the closest match you are going to get will be by connecting the speaker voice coil leads to either terminals 1 and 3 or 5 and 6.
Universal audio transformers do not offer exact matching of output to speaker voice coil; instead, they offer "close enough" matching to enable their use in many different radio receivers.
These transformers have six terminals for the secondary connection to your speaker voice coil. You will use the two terminals that most closely match the output load impedance to your speaker voice coil impedance.
Use whichever combination sounds the loudest and best: Terminals 1 and 3, or 5 and 6.
--
Ron Ramirez
Ferdinand IN
