Cheers guys for the help!  I managed to source a shop in Japan and they sent the part you suggested at a very cheap price (5 dollars).   My friend soldered the jack and the amp now plays very nicely.  The problem has been fixed.

So, thanks again J M Fahey, and Enzo, I really appreciate the help! 

Best regards,
Michael

Thanks JM, all valid points.  Yeah I'll definitely have a hunt in Japan.  I'm sure there are some parts dealers I can speak to.  I'll keep this updated.

Cheers

Excellent.  Thanks for getting back to me so quickly!  I'll give it a measure.

You're right,  seems like a tad bit pricey to have the jack sent from US.  I'll try to figure something out. 

I really do appreciate the help and advice.  I'll be sure to take heed.

Sorry Enzo, you posted that link*  What do you think of the likely hood of it being the same as the jack I have?

M

Sorry for getting back so late.  Here are some pictures of the inside.  It does seem to be a  Jack - Input, Original Fender® ¼", 4 Pin, Mono as you posted J M.    Don't you think?

It is made in Japan J M Fahey.   I live there, I should've said.  Right, so that could change the jack needed. 

Let me get a picture as soon as I can.  Cheers

Thanks for your reply Enzo, I appreciate your help!
The jack is a black plastic box, however you can't see inside it from the top;  can slightly peek in through the back.  I'll have to check with the circuit board to see if the jack is the same as your link.  I'm not sure how many pins there are.

I've never soldered before, however I think I may give it a go!  I'll open it up again today and send a picture. 

Perhaps not too difficult a job right? 

Hi, this is my first time posting and I'm new here.  Thanks in advance for any help/ advice you can give me.

I have a Fender Reverb amp head- used- and the jack needs replaced.  I first thought this as the guitar lead doesn't click into place. It seems from opening the head up that the jack is missing one or two grips to keep the lead in place.  If you push the lead to the side, the amp makes a hideous sharp piercing noise and crackles (not feedback),

The jack is connected to the circuit board not by a wire; sort of small  metal dots poking through the circuit board. 

Would this be a pain to do myself? 

Any advice on what to do would be welcomed.  I've attached a picture. 

Cheers guys.