Quick question re: cap value and amps

[tfarny]

OK, so the input jack on my BH little giant got scratchy a while ago, and contact cleaner wouldn't do the trick, so I replaced it with a switchcraft jack. Of course, now it doesn't work at all. So I did what any normal guy would do who has another amp he can play: I put the BH in the closet for a couple months. :icon_thumright: Dug it out last week while the wife was away, and it seems that the jack is properly soldered in, so I tested nearby components to see if I fried something in the process - one capacitor, C19 in the attached pic, has no continuity as far as I can tell. It is supposed to go from the input jack sleeve to ground, if I'm reading the schematic right.

If I had fried this component, would it cause me to get zero output from the amp - no sound whatsoever? The tubes light up and the fuses are fine.
The value is listed at .01 1kv - is that .01uf, 1 kilovolt? If so, I'm assuming I can head to radioshack and pick up another one.
If anyone has other suggestions I'm very open - I'm pretty clueless around amps. Yes the caps are self-draining and I don't intend to kill myself.  :toothy11:

Thanks!

 

[-CB-]

Thats not the problem....C19 only works when there's no plug in the input jack - or so I'm seeing in the schemo

 

[mayfly]

well,

the cap should have infinite resistance measured with an ohm meter - if that's what you mean by continuity.  So that sounds fine.

In any case, a defective cap would not have any effect on the input voltage reaching the grid of that first tube unless it was completely shorted.

What I think is going on is either:
1 - you've got an open between the tip of the new jack and the grid of the tube.
2 - you've got a short between the tip of the new jack and ground.  My money is on this one.

To test, put a 1/4 plug in there and measure the resistance between tip and ring.  It should be about 1M.

If it's ~zero (and 51ohms counts as zero around those parts) - there's your problem.

 

[tfarny]

Thank you gentlemen! If I'm ever in your neck of the woods I def. owe you a beer or a drambuie! Love this board.
Will check further tonight and report.

 

[Schlieren]

tfarny, do you think it would be possible - via some form of cap values in a Varitone circuit - for one of the settings to mimic what would be essentially a "normal" tone knob rolled off completely?  I'm finding a lot of uses for that sort of almost Johnny Greenwood-like tone, mostly because it kills all the nasal qualities inherent in a guitar's sound...

 

[Super Turbo Deluxe Custom]

Mayfly covered it, but a capacitor by definition shouldn't have continuity.  "Two conductive plates separated by a dielectric."