How to open/repair this altran transformer?

[Cosmonaut]

I have broken one of the pins in an Altran C-3402-2 while desoldering from a non working preamp...I have tried to open the transformer can, but without any results...

Any advice?

 

[pucho812]

those are usually held together with an epoxy or glue.

 

[sr1200]

if you can see an existing part of the pin that broke off, i've done this,

very carefully using a hand drill (manual not electric) and a REALLY tiny bit, drilled a little hole into the center of the pin part, talking only 1/2mm (thats HALF mm not 1 or 2) deep and VERY carefully soldered a lead from a resistor or diode (diode leads tend to be a lot bigger).  Worked fine.

 

[CJ]

if you get ot hot you might be able to save it by carefully digging it out fter you pop the lid,

is it a pin that has a connection?

sometimes you luck out and break an NC pin, sometimes not,

 

[Cosmonaut]

Bad luck...

The transformer pin is one from the primary winding, I have tried drilling manually with a 0.8mm but was impossible to make connection with anything...

Then I drilled manually with bigger drills trying to find the connection...but nothing.

Any other way?opening the can?

 

[CJ]

jst se a heat gun or a blow drye or  a camp fire to heat it up and pop it loose,

you have nothing to lose unless yo want to se the good half for a bass inductor

 

[sr1200]

wow that must have been REALLY broken off... the times i did the drill thing, there was still a little "nub" if you will that i was able to drill into that still had connectivity.

 

[gemini86]

It sounds like it was pulled out completely. I've had this happen to old iron that was being salvaged from dead telecom gear.

 

[pucho812]

since it's dead anyway send it to CJ for a transformer hack.

I miss those days.

 

[CJ]

i have a crimson audio helix coil right here if you wanna see it,

or would you rather have the Beyer?  :-*

 

[pucho812]

Ohh ahh. Surprise us : 8)