Well...a further twist in the saga of the missing BG4000.....Justin has sent me this from his other BG4000 which is not in as good condition cosmetically as the missing unit...I will install this transformer into the missing deck, test it over the weekend then ship it back to Justin in the armoured enclosure......following which Justin will forward the donner deck and I will install the power supply mod and toroidal transformer into that one.

Got the doner transformer fitted yesterday........went in well enough

Plays well.......the transformer gets lukewarm after around 40mins playing, considerably cooler than the original, I will leave it on test for a day

Good news Craig! Just beautiful.

You know, my Beogram 4000 has been permanently plugged for 10 years now. Still works great.

Ok......that chapter closed I have started to look to the transformer mod prior to receiving the donner unit......I wanted to hook up the various components and see what transpired.... small piece of circuit board and a bridge rectifier that I wont need to install in the final fit.

The TO252-3 package isnt the most friendly configuration in my view........difficult to connect to a circuit board in the conventional manner...this is due to the FIN being used as the ground.

An uncomfortably ugly spot of solder to attach a pin worked, I was worried about using too much heat to achieve this resulting in damage to the package.

The circuit board will be cut down to suit the final mounting location when chosen....

Hooked up my variac and measuring across one of the transformer 12v secondary windings to the rectifier measured 14.4v...a little higher than I was expecting but not an issue.....

Got a steady 6.06vdc output.....this is with no load of course