Orange Crush 15R & 30R Guitar Amp Repair

Here’s some photos from a pair of Orange Crush guitar amps I’ve had in for repair: a 15R and a 30R.

Both had a very loud hum when the amp was at idle.

In a solid state amp this is almost always due to poor power supply filtering. and further inspection showed that this was caused by the same fault in both amps, namely one of the electrolytic filter caps had failed catastrophically. Below are photos of the offending items (almost!) in situ.

 

OrangeCrush

 Orange 30R filter cap failure

 

 

OrangeCap1

 Orange 15R filter cap failure

 

And here’s the rest of the filter cap from the 15R, which I found in the bottom of the amp.

OrangeCap2

 

 

I replaced both filter caps in each amp with better quality units rated for 105degC  and this sorted the problem (as expected!).

This entry was posted in Amp repair, Guitar Amps, JPF Amps, London. Bookmark the permalink. Post a comment or leave a trackback: Trackback URL.

One Comment

  1. Posted December 8, 2014 at 04:56 | Permalink

    Very cool. Keep up the good work.

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