20 Most Recent Crate Blackheart BH15 112 Handsome Devil Guitar Amp Combo, 15W All Tube with Attitude - Page 2 Questions & Answers

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Looks like Q24 changes the gain at IC4-A from low with no input jack to normal gain with a jack inserted. Since this appears to be a guitar amp that expects a floating input plug any connection at the input to say, a mixer etc may cause a re-grounding via that equipment's circuits, thus negating the auto mute...... eggs & suck :-) If using a moving coil meter it could upset things.... an interesting fault! Sorry I can't be more help - Good luck!

make sure it's unpluged! then take out the chassis, and look for it on the circuit board. I don't think that one has one.

You trying to fix it or sell it ?

in some models there are relays that are slower to respond than others. Contact Crate to see if there is a fix for your model. http://www.crateamps.com/support/index.php

Here is the link to Crate customer service- http://www.crateamps.com/support/index.php

Contact Crate customer service http://www.crateamps.com/support/index.php

http://www.crateamps.com/support/index.php You should call Crate for the best answer

What is your question about the footswitch?

They look to be 1/4" stereo male to male jacks (known also as TRS). I don't know where you are but they are easily available. You need a pair of them at the length you need. e.g. SHORT 1m 6 35mm Stereo TRS Jack Plug to Guitar 1 4 Jack Male Musical...

The easiest way would be to contact Crate customer service, or Guitar Center, or Musician's Friend, or Ebay.Here are the links- http://www.crateamps.com/support/index.php Guitar Center Music Instruments Accessories and Equipment Musician Friend Musical Instruments Store eBayeBay

Perhaps these loinks will help- 25 000 terabytes of music videos and posts http://www.crateamps.com/support