Question about Amplifiers & Preamps

1 Answer

My Crate blue voodo amp head

Im not an expert on amps but im guessing that the tubes in the amp are broken. I know its not the fuse because the lights will turn on but no sound will come out. This is an old amp and I saw the advice you gave the guy on the fender amo, so i thought maybe you could help.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,175 Answers

Hi...

1st off , check the connections from the head output jack to the speaker cab. If you can get hold of a meter , check the continuity on the cable (center wire to center wire , ground wire to ground wire) both should be about 0 ohms.
Do you have another speaker cab you can try>?

You might have a speaker fuse internal on the amp too OR a secondary fuse on one of the power supply lines

Posted on Dec 29, 2008

  • Scott Frye
    Scott Frye Dec 29, 2008

    also...

    see if the tubes are "lit" . There should be some glow action in the tubes when it's fully on.


×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 800W Sony Xplod amp and two Jensen 10 inch speakers, when i turn my car on no music comes from the two speakers. Every couple of seconds the sub clicks with the beat of the music, nut it still has...


I think' its preamp problem inside your power amp, maybe its an IC,transistor. also try your radio to other amp' if ok,, the problem is your amp... bring to the nearest qualified technicians..

Aug 10, 2011 | Amplifiers & Preamps

1 Answer

Crate amp hums when it is turned but can work at times


has th amp got a valve if so the valve may need replacing or might need reseating..

Jul 31, 2009 | Amplifiers & Preamps

1 Answer

I have an old crate blue voodoo amp head that wont work


Good day sir, changing the tubes won't solve the problem, sad to say it but you may need to bring it to a veteran technician, that knows tube amps. there are simply lots of things to check for. hope this helps, thanks

Jul 19, 2009 | Amplifiers & Preamps

1 Answer

Solid State amplifier problems


I would look for crossed wires or shorts on the board itself as a result of overheating. They will look like toasted circles around the pins of the board. You may not have been the first to open the amp and make a repair.

Apr 30, 2009 | HHB Radius 50 Tube Amplifier

2 Answers

How to connect the amp,too many inputs and outputs


I'll try to help you step by step from your question. My answers will be in all caps. Here we go.

I really hope u can help me,i have 2 basic speakers with connections in the back for the amp leads to go into,but i am really struggling with what wires i put into the amp and in which connections and then really, really struggling with which connections i need to come out of the amp to go to my speakers.
I have a Carlsbro 150w power module

(THIS SOUNDS LIKE A PA AMP AND NOT A CONSUMER STYLE AMP, IS THAT TRUE?)

and it has an Output hole of which im guessing is where the speaker connection goes

(IF IT IS LABELED OUTPUT THEN IT IS INDEED A SPEAKER OUTPUT CONNECTION)

,but on the front of the amp i have 6 channels,each with a hole which is black that says HIGH Z,and also a red hole that says BALANCED LOW Z,

( THESES ARE MICROPHONE AND OR GUITAR INPUT JACKS AND MOST OFTEN YOU WOULD USE THE HIGH Z (meaning impedence) INPUT FOR A MICROPHONE

and next to it i have two buttons with REV and FX

THESE ARE FOR REVERB AND EFFECTS CONTROLS OR INPUTS. YOU DON'T NEED THESE FOR JUST A VERY BASIC SETUP.

.At the other end of the amp ,ive got another red hole that says REMOTE SWITCH

DISREGARD REMOTE CONTROL SWITCH JACK

and 2 black holes that say EFFECTS ,SEND and RETURN.Do i need these?

DISREGARD THESE TOO

I just dont know where to put my output line from my mixer to the amp.

IT WILL GO INTO THE BALANCED LOW Z INPUT, BUT IT MAY ACTUALLY BE TOO HOT A SIGNAL(signal strength too high), LOOK FOR SOMETHING LIKE A TAPE INPUT OR SOMETHING LIKE THAT ON YOUR FRONT PANEL. IF YOU DON'T HAVE ANYTHING LIKE THAT THEN YOU MAY NEED TO USE AN ADAPTER DEVICE THAT WILL KNOCK DOWN YOUR SIGNAL STRENGTH TO THE RIGHT LEVEL FOR A MICROPHONE INPUT AND THEN PLUG IT INTO THE BALANCED LOW Z INPUT.

PLLLLLLLEEEEEEAAAAASSSSSSEEEE HELP.Im tearing my hair out.

HOPE THIS HELPS. GOOD LUCK

Jul 30, 2008 | Amplifiers & Preamps

1 Answer

Crate G60XL


Hey madmedia63

Good old amps these. Fixed a few over the years. I would expect dry solder joints in and about the channel switching. If you got a mate with soldering experience, he da man to help you sort it. Hard to help you anymore without actually looking inside the amp to see what's going on. But that's were I would start at least. Way round it I guess is to use a distortion pedal. Go for a metalzone to get similar sort of distortion. \m/ riff out ;)

robotek

Jul 17, 2008 | HHB Radius 50 Tube Amplifier

2 Answers

Problems with the Operation circuit on Technics SU-A900 MKII aplifier.


Hi There Cushy,

The Amp needs Power.....and if the power switch is turned on and the light doesnt come on then there is no power....

Have a good look around the back of the amp and see if you can find a fuse please...

Its a small circular plastic item labelled "FUSE" with a screwdriver slot in it..

Turn the power off at the wall socket then unscrew this fuse holder, the glass / ceramic fuse will come out,,, replace it with one of the same physical size and of the same rating probably 1.5Amp.

Turn the amp back on and it should go if not then there is a major failure inside the case.....Needs a serice call Im afraid....

Cheers From YUBEUT

Nov 17, 2007 | Amplifiers & Preamps

1 Answer

Volume problem with BV120 tube head


hi.i suspect it is not faulty just built with different gain characteristics.only a power check with an oscilloscope will tell and any electronic repairer should do this for you very cheaply.it will also tell you how well and balanced the valves are.if you are near leeds.uk.i will do it for you nigel

Oct 25, 2007 | HHB Radius 50 Tube Amplifier

4 Answers

Crate BV120 too quiet


Have the tubes checked when good and warm.
Check for any leacking capacitors.
Check all solder joints are shiny any that are dull try to reheat and apply solder.
Good Luck
BIGRED

Oct 23, 2007 | HHB Radius 50 Tube Amplifier

Not finding what you are looking for?
Amplifiers & Preamps Logo

Related Topics:

84 people viewed this question

Ask a Question

Usually answered in minutes!

Top Amplifiers & Preamps Experts

 Grubhead
Grubhead

Level 3 Expert

4567 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

The Knight
The Knight

Level 3 Expert

68153 Answers

Are you an Amplifier and Preamp Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...