I will look at this after holiday
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
btw. i have seen that http://www.reichelt.de has also many tranformators...
I search on reichelt.de again...sorchard wrote:As you say, the original transformer is effectively 2 x 8.6 VAC. Max current is 1.8A per output coil. Power rating is 17.2 x 1.8 = 31VA.
Adding a fuse is a good idea!sorchard wrote:If your house doesn't have circuit breakers you should probably include an inline fuse on the 230V side. Something like T2A with >1000A breaking capacity.
You're scaring me now... You do of course mean that you will solder the wires on first, then protect the joints with hot gluejedie wrote:Think i will fix the cables to the PCB mounting pins with hot glue and also fix the whole transformator with it
The shield will be more for compliance with EMC regulations than for performance reasons so I don't recommend you try it as it would not be easy to make a good shield. IMHO having homemade metalwork near mains terminals is going to create a risk of electrocution, unless you fix the transformer and shield to the case securely with screws, ground the metalwork properly and ensure that nothing conductive can ever be closer than 4mm to a mains terminal.jedie wrote:Questions: I didn't have the origin "shielding covering cage" Should i try to do a handicrafts one?
Interesting! I create a separate thread for this -> viewtopic.php?f=8&t=4967tormod wrote:By the way, at the vintage festival, through the cool guys of steckschwein.de fame, I acquired a switched power supply which seems suitable for feeding a Dragon directly, also the form factor would be perfect for replacing the PSU board. One day I will try it out. http://www.pollin.de/shop/dt/Nzg5OTQ2OT ... 7188B.html
Hm! With my multimeter I measure 11,4V~ idle voltagejedie wrote:D.) 2x9V 36VA - 10€
-> http://www.reichelt.de/Printtrafos-25-5 ... 6%2F23+209
* size: 7,1x6,1x4,9 cm (too big, but can be easy fitable)
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It does look a little high. The transformer data sheet says the open circuit voltage should be 9 x 1.11 = 10Vjedie wrote:Now it's connected. I measure 10,4V~ if ON and 10,6V~ if OFF between A3 and A1