DIYer logo

DIY - you may not save money, but you can earn many ... fun, new knowledge, experience, ... even money at last

Topic

star A.C. Devices
star A.C. EMI Filter
star A.C. Spectrum
star Digital Oscilloscope
star Flat Top A.C.
star Isolation Transformer - Safer Power Supply ?
star Isolation Transformer
star MCB - For Testing
star Relay - Power Failure Manual Reconnection System
star Soft Start Circuit
star Soft Start Circuit 2
star Tube Amplifier
5Z3P, 6N9P, EL34
 

Useful Info.

star AWG Vs mm
 

My AV System

star System Info.
star Testing Result 2016-5-14
star Testing Result 2014-7-27
   

Case Opening

star Cambridge Audio
CA 351C
star KEF Q300 Speaker
   

Unboxing

star 5z3p 6n9p EL34
Tube Amplifier DIY kit
star AudioQuest USB A-B Forest 1.5m
star B&W 685 S2 speaker
star WireWorld RCA Luna 7 1m
   

Other DIY

star Medeco Lock Replacement
   

 

Custom Search

Isolation Transformer
Part 3

Today, drilling again ... ... but I tried something very useful ... the upper part of a plastic bottle.
Free drilling protective cover The upper part of a plastic bottle can keep the debris in a small place. This can make cleaning easier and make the whole drilling process safer.

 

Oh ... Drilled on the wrong side ...

DIY's MUST Experience !!!

Drill again ...

Today, 12 holes (11 + 1 mistake) were drilled. The biggest hole on each Aluminum Plate is for the power cord to pass through two separate cases of the Isolation Transformer.

I will use one big Aluminum Case for the Transformer and the output sockets, one small Aluminum Case for the input power and power filtering circuit.

I use this design because

  • A case with perfect size for DIY is by luck ... this time, I find one, but it is out of stock ... ...

  • Order a Tailor made case is very expensive

  • It is too difficult for me to make a case at this moment ... drilling is already not a easy task ... cutting Aluminum Plate will be nightmare ... ... for me ... DIY at home in Hong Kong.

  • Two separate cases for the input and the output can isolate the interference between the input and the output... this is good !!! Because this is the main task of Isolation Transformer in Hi-Fi world.
Part 3 finished

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12