Question about Audio & Video Receivers

1 Answer

Have a Fender Twin 57 custom shop reissue, 18 months old, keeps blowing the mains fuse after approx 30/40 into a gig. Amp not overdriven, no external FX used

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,512 Answers

Hi debdenplace

Blowing fuses at gigs is not a very nice habit. I suspect that you need to retube the output stage. It is the most common cause of fuse blowing. Even though not being overdriven, the life you get out of output tubes relates to volume and time. The higher the levels, the more often they may need to be replaced. Go for the Groove Tube replacements if you can afford them GT6L6GE , but I use a gain matched pair of Sovtek Russian made Electro Harmonix ELH6L6EH in this type of amp. They cost about half as much, are designed with Fender style output stages in mind and do a great job.
I am more than happy to answer any other questions you may have about it, please get back to me here, or use the ASK function to go straight to me :) If you are still unsure, have problems, or we need to look at the situation more deeply, then before you give a rating for this advice, hit the ASK button Thanks for using FixYa, If you consider the advice I have given you as sound, a FixYa rating is a great reward for my efforts to help you. Cheers.

regards robotek

Posted on Jul 05, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

All the lights are not working found 2 blown fuses / replaced still not working the power lite flashes red then turns to green


When a fuse blow suspect an overload. In an amp this old it will certainly be one (or more) of the main output transistors that has shorted.

Sep 25, 2013 | Sansui 1976 9090 Receiver Amp Vintage

1 Answer

My sansui 1000 receiver keeps blowing fuses


Fuses blow when there's an overload. This is often caused by the main power amp devices located on the heat sink. If they are transistors you can test them with an ohm meter. It will be just like you have put the two test probes together on the separate pins of the device.

Mar 24, 2013 | Audio & Video Receivers

1 Answer

Does not come on at all have chec:ked fuse in plug ,was working perfect just stop playing 18 mnths old joyce-colathotmail.com


There will be additional fuses inside the unit.
Check to see if there is voltage coming out of the transformer. If there's none, look for fuses going into the transformer from the power input.
If there's voltage coming out of the transformer, check the fuses between it and the main board.
If you replace the fuse, and it blows again, don't try this a second time, the unit needs to be serviced by a qualified technician as there is something seriously wrong.

Feb 24, 2011 | Audio & Video Receivers

2 Answers

Replace fuses No power on no standbyby power LED Just nothing


Are you trying to say it's blowing fuses? Stop wasting fuses and risking a fire.

Disconnect the speakers, see what happens. If it keeps blowing fuses it needs a real pro to look at it. Internet doesn't help.

Feb 25, 2010 | Teac AG-V8060 Receiver

1 Answer

Keeps blowing a main fuse


The receiver will need to be diagnosed by aprofessional. It could be many things. Most likely shorted output amp.

Apr 24, 2009 | Audio & Video Receivers

1 Answer

My laney aor series amp has completely stoped working, the valves are still glowing but no sound is coming out


Hi.

Have you checked the HT fuse. the amp has 2 power supplies, one for the tube heaters, and another for the actual operation of the amp. Check that fuse, and replace with exactly the same type if blown. If it keeps blowing fuses, then you may well need to change your output tubes. They don't last forever, and you will get about 6 months out of them in normal gigging/rehearsal use, longer if you don't use the rig at high levels. Be sure also to use a proper speaker lead, not just an instrument patch lead, poor connectivity from anything that is not heavy duty can cause your amp to blow fuses, AND pop valves. I am happy to talk more to you about it, I have had a long love affair with valve amplifiers, both building and repairing them.

regards
robotek

Nov 08, 2008 | Audio & Video Receivers

1 Answer

Hafler power amp has one side out. Would like local repair.Series 9300.Approx.10-15 years old.Not used much.Second time to blow.Runs 4, 8om speakers including 2 bose 802,s (no bose controller or eq in...


just discovered same problem with my Hafler DH-200...right channel out but no obvious problems inside (no loose/burned wires, components, etc). Driven by Hafler pre-amp, but definitely power amp problem.

Sep 03, 2008 | Audio & Video Receivers

1 Answer

Fender deluxe reverb amp keeps blowing tubes


If it's blowing fuses. It probably has a bad output tube.
If it's blowing tubes. It may have a cracked tube socket.  Also may need to be biased by a tech.

Aug 20, 2008 | Audio & Video Receivers

1 Answer

I have a Holden Wasp XL base amp. 100 watt?? Quite old, 70's ish. CAn you tell me how many and what size speakers it will run. Thanks, Lance


hell yer, built in New Zealand... or Aussie, cant remember. Best sort of speaker box for bass is 4 x 10inch quad box. Next. a single 15 inch, or use both together. The head you have I think was more of a PA system than a bass amp, but will certainly do the job. So long as you are not trying to keep up with a Fender twin, or a Marshall stack. 100 watts don't go far for bass. I would go for the single 15 inch driver to more the most air.

regards
robotek

Jul 06, 2008 | Audio & Video Receivers

1 Answer

Nad 218 thx power amp keeps blowing ac plug fuse


Hi there. From memory they had bridge rectifier problems with them going short circuit. Check them first. Sometimes the toroidal transformer can go a shorted turn, in turn blowing primary fuses. try to soft start it whilst it is blowing fuses, Best bet is to make up a special lead that has a 60w light bulb wired in series with the mains power supply(or across the fuse holdwer that is blowing:). Limits the power in the circuit to ... well you guessed it 60 watts.

check em out and let me know.

regards
Graeme

Apr 27, 2008 | Audio & Video Receivers

Not finding what you are looking for?
Audio & Video Receivers Logo

Related Topics:

85 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio & Video Receivers Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

The Knight
The Knight

Level 3 Expert

68197 Answers

yadayada
yadayada

Level 3 Expert

60769 Answers

Are you an Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...