Recent content by thickwood

Never had a problem on my 2011 Rebel 30 other than tubes or FX loop send return switching jacks needed exercising ! It started losing signal and slowly dropped the volume on channel 2 ? Switched channels I had more volume but sound was different with less highs and midrange was weak but...

Most colorful sounding tube first ! RCA long black plate 12ax7a tube - put in socket pushed into breakup and smooth wonderful and so colorful it blooms No. 1 must have Sylvania long black plate 12ax7- Gained up it Deep Purple and awesome colorful rock tones you must have on hand ! Tungsram...

I maxed out on some vintage preamp 12ax7 tubes and voiced much better ! V1- has a GE 5751 which is in fact the fattest sounding midrange and bass tube anywhere. V2- IEC labeled vintage mullard 12ax7 - awesome bell tones good perfect bottom end . V3-Tungsram 12ax7 which sounds harmonic and has...

Well it took me 30 minutes too find my stupid mistake . First reading using a bias probe showed 327 plate volts DC , ah that's too low for my Rebel 20 and my Rebel 30 amp ? The first thought was the probe was off a lot . Conclusion was wrong , I forgot too check the AC volts coming into the...

How can a amp like the R30 run 4 tubes rated at 12 watts each at max which is about 48 watts only get 30watts ? I do not have a oscilloscope too test , but I know the plate volts are 375-379 which is high as you want with these 6v6/el84 tubes. You would have too put the tube mix control at...

So many great sounding old 12ax7 tubes no particular tube is best in all amps except perhaps RCA long black plate 12ax7 tube ! In the amps that have preamp gain breakup that is what I call the overdrive tube socket. In short as I can describe them. The RCA ax7 Black plate or Bp tubes do not...

I was amazed the warm sounding DiGiTech Bad Monkey over-drive pedal had such a natural rock guitar sound ! I like highs but the R-20 amp is too bright for me ! I never liked the slap you in the face pick attack. Its a totally fun r&r Blues amp sound and its fun as heck. You can re-voice the...

The amp has plenty of over-drive and would rock but I did not bond with it ! Yeah I was bright as the speaker had to go , replaced with a Eminence Wizard and sounds better but ? I have many vintage 12ax7 tubes but the magic I found with a 5751 black plate tube replacing the 12ax7 in V2 was it...

My question is simply will a 8ohm amp going into 8 ohm speaker overdrive the power tubes earlier than amp 8 ohm going too 16 ohm speaker ? Some talk of mismatches as a option but what about the tubes , I have run a 8 ohm amp into a 16 ohm speaker with no worries. I could be defeating the ability...

: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...

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 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...

This may give some insight on what each tube does the effects the next tube ect: V1 is the vital initial gain and tone for both channels . V2 Is your cascade overdrive tube fed from v1 , this can be a challenge finding your crunch flavor . V3 is the Equalizer recovery , use your ears turning...

I have had the Rebel 20 head 3 years and all the 12ax7 tubes did not get the tone i wanted. Frankly the sound was shrill with highs and hateful and offended my senses . 3 years later i put a RCA 12ax7a long Black plate tube in the OD socket and what a great tone it has now ! I have been...