Stereo "pultec" Toroidal and ground wiring.

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madsimilius

Well-known member
Joined
Dec 2, 2009
Messages
51
Location
Sweden/Stockholm
I need help with wiring my toroidal, fuse, iec, power switch and ground. (230v)

On the toroidal it says: Prime 1 orange - yellow 0-115v, Prime 2 orange - yellow 0-115v,
                                                  Sec 1 white - black 230V/35mA,  Sec 2 blue - green 9V2A

One of the orange and one of the yellow wires have a piece of black heat shrink tubing on them. (for marking i guess)

I guess the blue and green and the black and white goes to the pcb. on the pcb it only says 250vac 1 and 2 and 9vac 1 and 2. how do i know which goes to 1 and which goes to 2? 
Do i wire anything  from the ground point on the pcb ?  and do i wire anything to the 6.3v ?
Actually if anyone could explain to me how to wire the iec, toroidal, fuse, power switch and ground it would help me alot !
 

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The white/black is the 230VAC  secondary so this you should wire to the 250VAC on the PCB. As it is ac it does not matter which one foes to 1 or 2. Similarly the 9VAC secondary is the blue and green wires. Connect these to the 9VAC pads on the PCB. Again it does not matter which way round they go.

On the primary side you have a pair of 115VAC windings. As you are in Sweden you have a 230VAC supply so you need to wire the two primary windings in series. Connect the yellow of prime 1 to the orange of prime 2. Insulate this connection. Connect 230VAC mains across the remaining orange and yellow wires.

For details of how to bring in the mains and handle grounding I would recommend you read this:

https://drive.google.com/file/d/0B_n67A1hN3qtSzNkQUhhdHR1TkE/view?usp=sharing

Cheers

Ian
 
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