Question about Fender Hot Rod Deluxe Guitar Combo Amplifier

1 Answer

No clean tone

The clean channel is not clean. it sounds like the drive channel is spilling over. All tubes are new, and all channels are strong. I have done various test and it shows that the speaker is fine. the amp is clean. only the preamp is running dirty. I took it to a so called electronic guy but he is not a amp tech, and does not know much about tone. I live in the boonies down in Costa Rica please help. what should be looking for.

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  • Fender Master
  • 5,603 Answers

Look for bad electrolytic caps in the bypass caps for the power to the preamp stages.

Posted on Jul 26, 2009

Testimonial: "Thanks, we dont have the means to check them but after swopping them out it sounds a lot cleaner Brian"

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1 Answer

Well, my Ibanez TBX150R Tone Blaster Xtreme Guitar Combo Amp worked fine for the longest time, and suddenly after a show, every time I turned it on the "hot" channel it popped and banged every...


Sounds like a problem with the channel itself, if the clean channel works then its not the lead, input, guitar or the drivers. You have to be careful when opening up amps as some can hold a residual charge and there can be danger of electrocution.

I would recommend getting it looked at by a pro, it doesn't sound like an expensive fix.

Jun 30, 2011 | Ibanez Tbx150h Tone Blaster Xtreme Guitar...

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I have a Peavey ValveKing 112. It seems like it just takes forever for the tubes to warm up. For like the first hour that it's turned on the clean channel seems fine, but the second channel doesn't work....


Buy ONE new 12AX7 and try it in location V1 and if it doesn't help, try it in V2. This tube has TWO heaters in it and if one is intermittent that could cause your problem. The vibration MIGHT be "fixing" a briken heater after some time.
There are MANY components that could cause this, so you might have to take it in for repair if it isn't a simple tube problem. Since it works on the clean channel, V3 should be OK.

Feb 11, 2011 | Peavey Valveking 112 - Tube Guitar...

2 Answers

I have a Fender 2x12 Hot Rod Deville. The clean channel seems to be working fine but the overdrive channel is not. I have to turn it up all the way in oder to get just a little bit of sound. So that...


For the Drive channel you need to use the Drive control AND the MASTER volume control. When the Drive channel is active, the Channel Indicator lamp should be RED indicating the Drive Channel is active. The Drive control knob is used to adjust the preamp volume and distortion level of the Drive Channel. This gives you a clue as to what to check if adjusting the controls doesn't work -- the preamp tubes. Having said that, ONLY try to check these tubes with the amp OFF! Never stick your hand up into the chassis of a live amp. It could be lethal. Your preamp tubes are the ones farthest from where the power cord enters the chassis. They have a rubber like stabilizer on them. They have a tendency to wiggle loose, which is part of the reason for the stabilizer. Again, if you're not familiar with the insides...stay out and get an amp tech to help you.

The Normal Channel only uses the Volume Control to adjust volume.

Feb 01, 2011 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

My Peavey vk100 head is running through a Carvin Legacy 2x12 cab. On the clean channel there is an inconsistent popping sound. It will happen loudly for a few seconds, and then not at all for a while, and...


You may simply be overdriving the clean channel and causing it to "flat top" . See if it occurs when you back the gain down a bit. New tubes PROBABLY will not help and be a waste of money. You may be unconciously playing harder during the popping episodes. You cannot hear level variations smaller than about 3 Db BUT the electronics will sense much smaller variations. You could gently tap the tubes with a lead pencil to listen for any pops... NOTE: tubes can be slightly microphonic so some sound from tapping is normal.


Yes, a cable can be noisy and not show itself when using intentio0nal distoprtion... try another to verify it is not the problem.

Jan 02, 2011 | Peavey Valveking Vk100 Guitar Head

1 Answer

My 410 deville's channel switching doent work and is stuck on the clean channel. This really isn't a problem as I always use the clean channel and I only mention this in the event it helps diagnose the...


You may have a switch that may be bad. For the sound level high and low may need new tubes or possibly may not be seated fully into position. These tubes due get quite hot and do get loose over a period of time.Hope this helps.

Nov 13, 2010 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Sound comes and goes on the drive channel, and there is a strange crackling on the clean channel. i dont know if its the tubes, the speaker, or electronics.


Using a common lead pencil, gently tap on the smaller tubes in the unit, listening for noises and crackling to change and the drive channel changes.

It is normal to get a slight twang when doing this from the microphonics of the tubes, however, the crackling and up and down volume points to a bad tube.

Sep 03, 2010 | Fender Hot Rod Deluxe Guitar Combo...

2 Answers

Loud humm when the drive channel is on


I suspect the power supply has an issue. Most likely bad filter capacitors. This could cause "motorboating" where power is drawn and supply voltage collapses and then recovers repeatedly.

Time for the repair shop. The parts cost should be nominal... labor... well...

Mar 15, 2010 | Fender Hot Rod Deluxe Guitar Combo...

2 Answers

Fender Deluxe. The volume knob has no effect whatsoever. Volume only changes with the drive knob.


Your amp has two channels - "normal" and "drive." When you are on the normal channel, the "volume" knob controls your gain. In the "drive" channel, the drive knob controls your gain. In both channels, the "master" knob limits how loud the amp will get.

Most likely, you are on the drive channel, so the volume knob will have no effect. Try pushing the "channel select" switch. You should notice the channel indicator lamp (next to the drive knob) turn off. When it is off, you are in the normal mode. Yellow = drive, and red = "more drive."

Experiment with different settings to get a variety of tones.

To get the most out of this amp, try reading the manual, available online here:
http://www.fender.com/support/manuals/pdfs/manuals_elec/guitarpdf/Hot_Rod_Deluxe.pdf

Have fun - it's a great amp.

Oct 28, 2009 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Channel one doesn't work


The 12AT7 is usually the driver tube for the tubes before it ( the input channels ). It can also be the driver for the reverb or tremelo channel. I'm not sure what model of amp you have or the manufacturer but there are plenty of places to look on the internet for info. http://duncanamps.com/index.htm is a good place to start. If you can't find the schematic for your amp try and find one that is similar to give you some ideas. If you don't have the basic tools like a volt/ohm meter and a capacitance tester. You might have to consider a pro to look at it. You will be looking for resistors and capacitors in the same circuit as the tubes that you originally mixed up. If its a hybrid solid state/ tube amp you will also need a transistor tester. Of course good soldering abilities are necessary and ABSOLUTELY do not work on the amp while it is plugged in and make sure you properly discharge the filter capacitors in a safe and proper manner before touching the circuit. All the info you need to sucessfully do it yourself is available at the library or on the net as long as you are confident in your abilities and first and foremost work in an absolutely informed and safe manner. Hope this helps.

Jul 15, 2009 | Music

1 Answer

No clean tone - no volume


First thing I'd check is if the valves / tubes are plugged in properly (it doesn't take much to loosen them) Unplug the amp then take out all of the valves and put them back in again.

If that doesn't work, try swapping the preamp valves (the little ones) around (let them cool down first) that'll tell you if one of them is worn.

Failing that I'd try cleaning the gain and volume pots with some switch cleaner, and if that didn't work I'd bite the bullet and buy a new set of valves.

Hope that helps

May 27, 2009 | Fender Hot Rod Deluxe Guitar Combo...

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