Annoying problem w/ egnater rebel 30 amp head
- Thread starter infrared72
- Start date
ehdwuld
A Ficus
Re: Annoying problem w/ egnater rebel 30 amp head
does direct equate to no effects loop?
if the amp has a loop it is not bypassed by going into the front of the amp without anything in the loop
the jacks of the effects loop have switches like the ones on stereo headphones
that open the normal path through to the power section and send it through the jack
if nothing is plugged in the switch is normally closed and allows the circuit to complete
to the power section
if a jack is in, it opens this switch sending the signal through the jack
^^
here on the left side of the image
this is the part that gets grimey and fails
heats stays open
causing the circuit to fail
inserting a cable from the send to return bypasses the switch
and proves the bad jack
thank you
does direct equate to no effects loop?
if the amp has a loop it is not bypassed by going into the front of the amp without anything in the loop
the jacks of the effects loop have switches like the ones on stereo headphones
that open the normal path through to the power section and send it through the jack
if nothing is plugged in the switch is normally closed and allows the circuit to complete
to the power section
if a jack is in, it opens this switch sending the signal through the jack
^^
here on the left side of the image
this is the part that gets grimey and fails
heats stays open
causing the circuit to fail
inserting a cable from the send to return bypasses the switch
and proves the bad jack
thank you
Re: Annoying problem w/ egnater rebel 30 amp head
Even while playing straight guitar into the amp without any effects or anything else plugged in the volume still cuts in and out. It really only happens when running long sets then around the 40ish minute mark it cuts out. Other then that it works completely normal which makes it difficult to diagnose..:banghead::banghead:
Emailed Egnater.
Will makesure to update with their resolution.
Thanks guys.
does direct equate to no effects loop?
if the amp has a loop it is not bypassed by going into the front of the amp without anything in the loop
the jacks of the effects loop have switches like the ones on stereo headphones
that open the normal path through to the power section and send it through the jack
if nothing is plugged in the switch is normally closed and allows the circuit to complete
to the power section
if a jack is in, it opens this switch sending the signal through the jack
^^
here on the left side of the image
this is the part that gets grimey and fails
heats stays open
causing the circuit to fail
inserting a cable from the send to return bypasses the switch
and proves the bad jack
thank you
Even while playing straight guitar into the amp without any effects or anything else plugged in the volume still cuts in and out. It really only happens when running long sets then around the 40ish minute mark it cuts out. Other then that it works completely normal which makes it difficult to diagnose..:banghead::banghead:
Emailed Egnater.
Will makesure to update with their resolution.
Thanks guys.
MojoMonster
Active member
Re: Annoying problem w/ egnater rebel 30 amp head
Not sure how it is now, but back then they were really upfront and forthright about their amps.
Good luck!
That sounds like a heat/expansion issue shorting somewhere. Try running a fan directly at it, from the top/back, while playing.
I actually emailed a bit with Bruce when I first purchase my Rebel 30 as I'd heard GC was having issues with the preamp tubes, IIRC.
Not sure how it is now, but back then they were really upfront and forthright about their amps.
Good luck!
Re: Annoying problem w/ egnater rebel 30 amp head
It suggests a thermal problem of Tube, Cold Solder, Radial Cracks from the wave, etc etc.
It COULD be a bad connection in the loop. bit these symptoms would not be indicative of that condition.
Sound that routinely cuts in and out after 20 minutes of play Is Not the typical symptom of an oxidized jack.
It suggests a thermal problem of Tube, Cold Solder, Radial Cracks from the wave, etc etc.
It COULD be a bad connection in the loop. bit these symptoms would not be indicative of that condition.
Re: Annoying problem w/ egnater rebel 30 amp head
Okay, so no real advise from Egnater but to get it serviced at their one certified repair shop here in SD. Otherwise I can drive 3hrs north and take it directly to them.. After reading some poor reviews for the audio repair shop on Yelp, I'm thinking of taking on this repair myself. I'm going to start with new power tubes and making sure they have good connections.
Found this writeup on line saying there were a couple bad tube connections.
http://www.aaronbrownsound.com/replacing-and-biasing-tubes-used-egnater-rebel-30-tube-combo-amp/
Wish me luck!
Okay, so no real advise from Egnater but to get it serviced at their one certified repair shop here in SD. Otherwise I can drive 3hrs north and take it directly to them.. After reading some poor reviews for the audio repair shop on Yelp, I'm thinking of taking on this repair myself. I'm going to start with new power tubes and making sure they have good connections.
Found this writeup on line saying there were a couple bad tube connections.
http://www.aaronbrownsound.com/replacing-and-biasing-tubes-used-egnater-rebel-30-tube-combo-amp/
Wish me luck!
Last edited:
Danglin' Fury
New member
Re: Annoying problem w/ egnater rebel 30 amp head
Hey guys. I just repaired one of these a couple of weeks ago. Same issue. Only this guy's amp was spitting fire. It happened only when he added el84 to the mix and only at loud volumes. Turned out to be a couple of wires on the output transformer. The board where the wires are connected are silk screened with the color of wire that slips onto a spade lug. Well, somebody switched a green and orange wire and it threw the output impedance out. So if he had it on 4 ohms it was probably really 16 or something. That also sounds like what has already been mentioned, cracked/cold solder joints or a bad cap.
Hey guys. I just repaired one of these a couple of weeks ago. Same issue. Only this guy's amp was spitting fire. It happened only when he added el84 to the mix and only at loud volumes. Turned out to be a couple of wires on the output transformer. The board where the wires are connected are silk screened with the color of wire that slips onto a spade lug. Well, somebody switched a green and orange wire and it threw the output impedance out. So if he had it on 4 ohms it was probably really 16 or something. That also sounds like what has already been mentioned, cracked/cold solder joints or a bad cap.
Re: Annoying problem w/ egnater rebel 30 amp head
Not being argumentative, however, much of the recent egnator line has suffered from reliability questions. Look on tgp and other sources.
Not being argumentative, however, much of the recent egnator line has suffered from reliability questions. Look on tgp and other sources.
Re: Annoying problem w/ egnater rebel 30 amp head
I too had intermittent problems with my Egnater Rebel 30 combo. There was the sound of radio-like interference and the sound cutting out. Mostly when warming up the amp but sometimes in the middle of nowhere.
It appeared to be related to the tone knobs, a little wiggle of the treble or bass on Ch 1 and it might reconnect.
After reading this thread, I tried plugging in a cable, effects loop out back to loop in. Presto. All is well. I sprayed some contact cleaner up inside the two jacks and so far the symptoms have not returned, even without the cable jumping the effects loop.
In all my years I've never heard an intermittent problem due to tubes. Thanks to all.
I too had intermittent problems with my Egnater Rebel 30 combo. There was the sound of radio-like interference and the sound cutting out. Mostly when warming up the amp but sometimes in the middle of nowhere.
It appeared to be related to the tone knobs, a little wiggle of the treble or bass on Ch 1 and it might reconnect.
After reading this thread, I tried plugging in a cable, effects loop out back to loop in. Presto. All is well. I sprayed some contact cleaner up inside the two jacks and so far the symptoms have not returned, even without the cable jumping the effects loop.
In all my years I've never heard an intermittent problem due to tubes. Thanks to all.
ThisDyingSoul76
New member
Re: Annoying problem w/ egnater rebel 30 amp head
I had a similar issue with mine.
First thing I did was change the tubes. But it didn't help although when the amp worked properly it sounded really good.
One day it just stopped working all together. I took a look on the inside and found the power tubes weren't getting power. Turned out one of the push on connectors from the transformer came unseated. I put it back on and never had a problem since.
I had a similar issue with mine.
First thing I did was change the tubes. But it didn't help although when the amp worked properly it sounded really good.
One day it just stopped working all together. I took a look on the inside and found the power tubes weren't getting power. Turned out one of the push on connectors from the transformer came unseated. I put it back on and never had a problem since.
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