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Replacement tubes The overdrive channel is lacking my clean channel is louder at half the volume even when overdriven

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My Fender Hot Rod deluxe makes a popping noise when switching back to the clean channel.


This is because your clean channel only runs through the pre-amp section, requiring an increased volume level to match that of the volume of the drive section which is overdriven by the pre-amp circuit. my suggestion is to use lower volume level on the clean channel of the amp. To get any volume boost you may need to match the two channels you could use a signal/volume booster or overdrive pedal between your guitar and amp input, switching it off and back on when you switch back and forth between channels.

Jul 15, 2012 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Extreme differences on overdrive channel


Please, take it to a tech in your area, or look for a good one to ship it to. An 2007 amp is not old at all.

Jul 24, 2017 | Marshall Mg100dfx 100-Watt Combo Guitar...

1 Answer

I have a RH50 T amplifier, it had a bit of a bumpy car ride to band practise the other day and now when i play through it, it will make a permanent buzzing noise on the clean channel that gets 70% worse on...


You may have damaged the variable resistors (the volume controls), you can purchase replacements from a local Electronics store (if UK based try Tandy). Otherwise have you checked the speaker itself for damage? You may have split the speaker which will need to be replaced.

May 04, 2011 | Randall RH50T Tube Series 50-Watt Guitar...

1 Answer

Wires to main speaker are, Yellow & Blue witch one is the positive ?. Also I am getting distortion from the clean channel even at low volume, the speaker is Peavey 1230 model 8 ohms.


Yellow should be the positive. Try plugging in and reversing. The louder of the two is the one in phase and the correct wiring. If the speaker is pushing out when playing , it is in phase and correct also.
The distortion problem could be a speaker going out. It may not be totally blown, but may be verging.
Holding your hand out as wide as you can push against the speaker lightly. If there is a rubbing or scratching sound, the speaker could be damaged.If it moves freely, and there is no scratching its okay.
Another possibility is the clean channel may have a channel volume set to high. Make sure the clean channel volume is set lower than the master volume otherwise you can get distortion on that channel too.
Good Luck.

Feb 21, 2011 | Peavey Bandit 112 Guitar Amplifier With...

1 Answer

My Epi valve jr v3 burns up jj el84 tubes, but the solvteks work fine...is it the amp or the tubes?


Check the bias on the tubes! Some brands can run with bias set wrong. Also some amps have 4 output tubes and people don't know that MATCHED pairs have to be seperated to each side of center of the group of four tubes.
You probably only have a single EL84 tube in your unit.
I could not find the schematic for this unit... IF the plates of the EL84 are coloring, the bias is set wrong. The plates should remain BLACK and not coloring to dull red or orange. Telling if the tubes are "burned up" can only be done with a tube checker or electronic test equipment or by seeing a bright purple glow between the elements.
Now this is supposedly only a 5 Watt unit so that means it is for LOW volume practice only... If you overdrive this small amp you can PROBABLY burn almost any tubes you put in it. The sound you can expect out of this will not be louder than most of the consumer boom boxes at full volume.
If you overdrive and "flattop" the unit the power tube will overheat and fail... this amp runs the tube in "Class A" which makes failure under overdrive more likely than in Class AB or B. I can't go into the engineering details other than to say at volumes above the design the output transformer will saturate and the tube will have to dissipate way above its ratings.

Feb 12, 2011 | Epiphone Valve Junior Tube Amplifier Head

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

I have a crate fxt 120. I 'll be playing in the #2 overdrive channel and it will automatically fail and go to a clean sound. Although it is not entirely clean. It sounds like 2 sounds combined. A loud...


A possible problem MIGHT be marginal switch contacts on the external foot controller cable. If you are not using the foot pedal, these contacts must maintain contact to keep the same channel selected.

Sep 15, 2010 | Crate Music

1 Answer

Deville 212 overdrive channel making Loud humming noise


It sounds like a filter capacitor(s) has failed. The electrolytic caps dry out and cease to perform allowing unfiltered power to reach the preamp sections and get amplified.

Being this is tube with high voltages, an experienced person should work on it due to shock danger.

I assume you checked the tubes for shorts as well as emission since a heater to cathode short could cause this as well.

Sep 30, 2009 | Fender Hot Rod Deluxe Guitar Combo...

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