Panasonic RE-784A Radio Speaker/Transformer Wiring

[willemv]

Hi folks,

I recently got myself a Panasonic RE-784A Radio from a yard sale. I think these date back to the 1950s, if I'm not mistaken. I would love to get it going, but it has a problem. The radio switches on and off nicely. The tubes light up. There are no wierd sounds like humming or buzzing. As a matter of fact, there is no sound at all... ;-)

The wiring between the speaker and its transformer is partially disconnected, as is the wiring between these items and the external speaker jack, and the rest of the radio. I have no clue how to reconnect the wiring and don't want to go at it on a wing and a prayer. The wiring diagram on the bottom of the unit is very small and means as much to me as abracadabra.

The transformer is marked 48E53W16I on the metal bridge and ETK-131Z on the winding. If I keep it horizontal with the markings readable, it has two connection points on the top side (I'll call these 1 and 2, left to right) and three on the bottom (I'll call these 3, 4, and 5, left to right). Points 3 and 4 are bridged with one of those brown, flat disc thingies (005MF P TDK). There is also a thin, bare wire sticking out from the bottom of the transformer.

From the main electronics block that holds the tubes four wires protrude that were apparently all involved with the speaker and/or transformer at one point: red and blue coming from one hole, white and black from another.

Currently...

- the red wire goes nowhere.
- the black wire goes nowhere.
- the blue wire connects to transformer point 4.
- The white wire connects to transformer point 2.

From the speaker comes a black and a white wire that go nowhere.

From the external speaker jack comes a black and a green wire that go nowhere.

Is there anyone out there who can tell me how to put these connections together again?

Alternately, if there is anyone out there with the same model and willing to share a picture of its inside, that would be very helpful, too.

Thanks in advance,

- Willem Vandenberg