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You must cut it up with some volume then try it, the louder it is the better you can hear the difference ! Not a true 1-30 watt control but cuts the dynamics down abit so it can be volume friendly in the house some what ! My 50 watt attenuator I bought sucks as the true tone is destroyed too...

I luv my Rebel 30 , its one rocking amp head so I would have called incessantly if that's what it takes !

Ask for address for repair and short without details, put your problems on paper with the shipped amp is my opinion.

I am blessed with the ability to hear the difference in each tube change and what is good or not ! I am also obsessed with getting the best sound with what I have . No positive things happen for you doing Cocaine or alcohol so my addiction is Guitars making music & sound . No top 40 BS here...

:D Well I run 11 tubes in it instead of 9 so this calls for 2 double tube socket adapters ! lol I received 2-6av6 adapters made for me that are pinned to a 9 pin adapter that plugs into where my 12ax7 tubes go. Therefor 2-6av6 tubes actually were put in one glass tube to create the 12ax7 tube...

The Glaring highs of the new production 12ax7 tubes are very lacking in tone ! I have 30+ so I looked elsewhere for tone ! Sino tubes go into mush early in a OD channel , higher gain channels some folks like them ? Vintage 12ax7 -5751-12ay7 is where I did my bidding . Some good types for me...

Glad to know the reverb is the fix, I can do without it as I use the FX loop without the verb ! I put a 12ay7 tube in the R-30 FX socket and found a better sweet spot when turned up ! That FX socket can temper the sound nicely or add glaring highs that's not good to my ears ! A strong 12ax7...

The send and return jacks can do some weirdness so plug in and out to get the jacks working correctly or clean properly can help. My R30 head was amplifying my touching at the front panel , I lightly tapped the control panel and I knew something was crazy. One of my send or return plugs were...

I solved the mystery, the tester meter light suddenly brightened up when I bumped the unit while moving it and a cold solder joint is it. The light is in the circuit so at least I am not wondering anymore.

I found the Conar 220 tester was at fault , for some reason the power supply was acting up !

Sep. 29 2013 was the date I posted above on the el-844 jj tube pair. Those tubes tested new at 75%-75% on each now test 90%-89% and I use a variac at 119vac ? I do not no how tubes can get better but other used tube I have and using are doing it also but the older tubes seem much improved by...

The 6v6GTA pair used tested good and matched by seller did not test well . The Conar 220 tester coming from a variac at 119vac is working fine. However yesterday the 6v6gta pair tested 58% and 70% After running awhile I was disappointed but today they came alive at 65% and 82% da ! So I took...

I wonder if the primary transformer comes from the Egnater fan kit too. Yeah it comes from Egnater all together I would think . Only Egnater has the specs. for the Tranny any way .

A made in Japan 12ax7 made on the blackburn mullard equipment in the 1970s resist breakup and compression so i use it in my overdrive and it holds defination excelent and not to fat sounding and great sounding highs . There are different flavors of 12ax7 tubes , RCA gray plate and RFT and...

Do not beat on it like some folks when there is a problem. I have a 1950s stromberg/carlson AU-33 that made that loud noise and my room mate was beating on it to stop that loud 60 cycle blast, it must be a filter cap entermittant failure or bad solder joint but that thing is hand soldered with...

I wonder what changes they made in current production , if they are selling updated tranformer tweaker 40 amps i would like to know ? The windings appear to be coated with a non conductor that fails and shorts out ! But if the amperage available is to low for the draw, heat will kill any...

I ment to add the 7025 tube is a New design with no shiney little clip on the plates , its a grey short plate with space between the plates like USA designs. Gain is good , though not a metal players tube im sure as it resist breakup but gets a fat midrange like the RCA and smooth !

I take responsibility for red plating 3 tubes in the course of 3 years so the bias should be checked if moved around bumped ect: The RI mullard el84 did not fair well at 370 plate volts at 42ma per pair , heat could be warping the grid support post i suspect and resulting runaway voltage hence...

Ok i see , good luck on the repair and hope for the fan to be included.

What is the date code on that amp . Good to have a cooling fan, the heat breaks down the insulated wire coating in the windings. I take it that the output tranny went or is it the big primary transformer that shorted?