I think I screwed up

[Plinio Barraza]

Hi all,

OK, 

I know I deserve it for doing wierd shit with good gear.  Most of you will rightly think
I'm an 
idiot but anywhay....  I think I blew a good amp and I wan't to know   A) how it actually 
happened, and   B) if there is any hope. 

 Here is what hapened:

I was driving the yolkes on an old monocrome computer monitor with this amp.  Nothing 
seemed out of the ordinary (and I have done this before without breaking the amp).  
Trouble is, as I was doing that, I thought... wow!  I can simultaneously controll the 
intensity of the ray with one of my oscillators, (as I had also done before without 
destroying the oscillators or the monitor) AND continue to drive the yolkes with the amp 
whose imput was one of my oscillators (maybe the same one I wanted to use to  
controll intensity, can't remember). 

 Anyway, as soon as I made all the apropriate conections things went wrong.  I think I 
blew about four fuses all together.  God, I thought to myself, "you could't wait till you
knew 
a little more about this stuff...now you messed up your power source, your scope, your 
monitor, your   amp...."


Fortunately, most fuses did their job and Everything got fixed when I replaced the fuses 
..exept the amp.  Each time I tried to replace the fuse on the amp it would blow again as

soon as I turned it on....  Here are the details:  

The original fuse (acording to the woman at the component store) is a thermal fuse. It's 
definitely diferent from a normal one because it has a spring inside).  Anyway this was a 
2.5 A thermal fuse and I looked for this value fuse everywhere and could only get 2A 
thermal fuses.  

So... is it possible that this .5 A difference makes the fuse blow, or is there more
serious 
damage inside making this happen.     I opened the amp and didn't notice anything 
obviously burnt.  Although there were parts of the amp I could not even get to, due to 
really tight screws (I even busted a screwdriver trying some of those screws).

 What do you guys think.  Should I try to order the right value fuse or should I send the 
piece in for repair (or bury it outside).  :(

Also, what kind of wierd thing happened, I mean everything that was plugged blew its fuse,

and all I did was touch the videoIN pin to the output of a breadboarded oscillator.   

Any
thoughts?

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