Feb 20, 2010 published on feb 20, 2010 playing around with my new ampeg jet j 20. May 18, 2017 im really tempted to buy a v4b reissue, because the svt cl was the best amp i have ever played through, and i heard they are very similar in tone. Tremolo can get very bumpy when turned up past about 6 to the point where you just cant bare it. Get a low price and free shipping on thousands of items. It was always wellmannered, never speaking in harsh tones and at the flip of a switch, it really brightened up. The 12 heavymagnet ampeg vintage driver follows through on that genuine vintage feel with big volume thats forever true to the signal. The ampeg jet ii reissue or j 12 t was a shortlived 15 watt tube combo featuring a single 12inch speaker. Like all ampeg products, your j 20 jet amplifier is designed by musicians and built using only the best components. Backline instruments and studio rentals in ventura county. Then came the genius idea but also a commercial suicide of choosing electronic circuitry. Still, in the golden age of rocknroll, fender and ampeg shared most of the guitar amp market one on the east coast, the other on the west coast.
You get the vintage rocker switches, the integrated chassis suspension system and the ampeg svt crank of the those old amps. Well, after being very impressed by an overpriced ampeg superjet reissue today, i pulled the bin trigger on a jet j12r ii. The model j20 jet is not an actual reissue of any early ampeg model and is said to be based on a fender amp was this fire risk amp a new handwired j20 or the earlier reissue jet the new j20 is made in korea or somesuch while there was a smaller 15 watt american made jet that had reverb and a pcb that was less expensivewas it. Ampeg comes to the rescue with the j20, a 1960sthemed 20watt, class ab, allvalve, pointtopoint wired 1x12 combo in its diamond blue lead series. The superjet was lush and impossibly clean and lovely, so im hoping the j 12 will be similar. Its the pure sound of a jet ii from the 1990s, captured with an ev dynamic microphone. Leave it to the toneobsessed engineering staff at ampeg to come up with the nocompromise, 20 watt, alltube, pointtopoint wired j 20 combo. Buy the ampeg j20 guitar combo and get free delivery. Hasse mods for the ampeg j20 guitar amp the following is adapted from a post i put up on the gear page, in the amp techincal forum.
Ampeg has a strong legacy in the world of vintage amps. Ampeg 8651508 hf driver for b410hlf, pr410hlf, svt610. Get the guaranteed best price on tube combo guitar amplifiers like the ampeg j20 jet 20w 1x12 tube guitar combo amp at musicians friend. Ampeg j20 jet blue diamond amp handwired fender brown face deluxe 6g3 circuit.
Ampeg jet j20 blue diamond opinions wanted discussion in amps and cabs started by handyman11, jul 28, 2017. Get the guaranteed best price on hybrid combo guitar amplifiers like the ampeg j12t tremolo amp at musicians friend. The ampeg jet 20 is nothing but a handwired clone of a fender brown face 6g3. Ampeg jet ii reissue tube guitar combo amp j12r with two jjs el84s and two tungsol 12ax7. Ampeg jet ii reissue tube guitar combo amp j 12r with two jjs el84s and two tungsol 12ax7. Ampeg j12t jet ii guitar amplifier, played clean youtube. The ampeg jet 20 j20 combo amplifier is a remake of the original jet. J20s preamp section utilizes three 12ax7 tubes and twin 6v6 power amp tubes provide sweet clean or overdriven tone. Used on modern ampeg speaker cabinets, this 3 inch x 4 inch plastic logo is affordably priced.
He said he thought the 4 ohm driver sounded better, as well as being louder. All pointtopoint handwired goodness, the ampeg jet 20 j20 c. The j 20 jet features a volume and tone control, a speed and intensity control for the tremolo section, and a footswitch for turning the tremolo on and off. Skip to main content skip to footer site5112957095 used 112957095 ampeg j20 tube guitar combo amp. J 20 s preamp section boasts not one, but three 12ax7 tubes, and its dual 6v6 output stage operates in fixedbiased mode. The stock speaker sucked period, i replaced it with a weber 12a125a 30 watt alnico, light dope and it sounds great. The endresult of all this inner tubing is a guitar combo with controllable vintage crunch along with ampegs hallmark easeofoperation. Jun 10, 2009 ampeg comes to the rescue with the j20, a 1960sthemed 20watt, class ab, allvalve, pointtopoint wired 1x12 combo in its diamond blue lead series. Normal in, bright in, volume, tone, red dome pilot, speed, intensity, standby switch, power switch rear. The j20 jet features a volume and tone control, a speed and intensity control for the tremolo section, and a footswitch for turning the tremolo on and off. Within a couple of weeks later i bought a silvertone 1482 amp and 1420 guitar that i didnt hev money to pay for and returned the ampeg. J series j12a jet j12b jet j12d jet m series m12 6v6 mercury m12a 7591 mercury m15 mercury.
These abominations of god are call clutch drive screws. The original goes back to 1971 and this looks like a baby bro to the ampeg svt head at about the power and less than half the weight 41 lbs. This amp was made in the mid 90s as some kind of plexiesque clone or what have you, it sounds like a love child of a low gain marshall and a fender. The skinny the 100watt v4b debuted in 1971 as a lowerwattage alternative to the 300watt svt. The tone king presents ampeg j20 point2point all tube amp. All pointtopoint handwired goodness, the ampeg jet 20 j 20 c. Replacement jack nut as found on the j502, j503, j504, j505, j503l and j504l jacks. If forced to name an industry standard for bass amplification, many players would cite ampeg. Like all ampeg products, your j20 jet amplifier is designed by musicians and built using only the best components. Ampeg jet j20 j 20 j20 combo amp vinyl amplifier cover ampe076.
Each amplifier is tested to confirm that it meets our specifications, and. The ampeg classic series v4b reissue head is a faithful recreation of the v4b 100watt, alltube bass amp head. Ampeg j12b jet schematic redrawn by steve luckey on october 10, 2012 6 4 5 47k 1m 100uf 2. The companys b15 is a studio mainstay, and their mighty svt has jarred fillings loose for decades. The nocompromise 20 watt, alltube j 20 s retrostyling is reminiscent of the 60s in attitude, as well as tone. Leave it to the toneobsessed engineering staff at ampeg to come up with the nocompromise, 20watt, alltube, pointtopoint wired j20 combo. Jan 16, 2014 if forced to name an industry standard for bass amplification, many players would cite ampeg. Reverb is a marketplace bringing together a widespanning community to buy, sell, and discuss all things music gear. The endresult of all this inner tubing is a guitar combo with controllable vintage crunch along with ampeg s hallmark easeofoperation. Guitar is a fender 57 reissue strat, into a line 6 m for some reverb only, then into the amp. Ampeg j 12t i would suspect that the 6v6s would sound better and more correct in the ampeg circuit and iirc the reverberocket used some kind of 70xx tubes in them but it seems that everything smaller than 20 watts is being built around a pair of el84s probably because theyre cheaper to get. J20s preamp section boasts not one, but three 12ax7 tubes, and its dual 6v6 output stage operates in fixedbiased mode. The guitar is also stock, it is one of the newer reissues which have 1 single coil.
There are twin output jacks for hooking the j20 up to external speaker cabinets if the included 12 inch alnicoloaded. Ampeg heaven amp schematics schematic amplifier echotwin. The sole exception is their last gasp, the j20 jet, which is allegedly handwired, albeit in vietnam with low quality components, and has rattling issues. Anyone got a driver recommendation thatll get me the definition and top end sparkle i desire or am i s.
I also purchased a new ampeg j 20 reissue pretty darn cheap about 6 months ago. Rocket series reverb rocket 2 reverb rocket 3 reverb rocket 12r reverb rocket 12rb reverb rocket 12rt rocket no reverb 12a super reverb 15r sb series sb12p portaflex sb12 7868 portaflex svt series svt preamp svt 6146b poweramp svt. Transformer set could be better and the stock noname alnico speaker will not. Turns out, it is based closely on the fender brownface era deluxe amp. Part of the diamond blue lead series, the j 20 jets retrostyling is highly evocative of the 60s in attitude, as well as tone. My only concern is all the negativity ive seen on the v4b reissue. Ampeg j12t i would suspect that the 6v6s would sound better and more correct in the ampeg circuit and iirc the reverberocket used some kind of 70xx tubes in them but it seems that everything smaller than 20 watts is being built around a pair of el84s. Buy the ampeg j 20 guitar combo and get free delivery. Used ampeg j20 tube guitar combo amp guitar center. Ampegs gvt112ew guitar cabinet delivers rich, full tone that only ampeg can provide, featuring ampegs legendary doublebaffle design for more low end. The stock alnico speaker in j20 is okay when played clean but falls apart when the volume gets urgent. The new ampeg svtvr is a vintage reissue of an early 1970sblueline. This amplifier is the ampeg j12a combo tube amplifier circa 1964 with one rola 12 speaker, tube tremolo circuitry, two 6sl7 preamp tubes and two 7591a power tubes providing around 15 undistorted watts. The nocompromise 20watt, alltube j20s retrostyling is reminiscent of the 60s in attitude, as well as tone.
Im really tempted to buy a v4b reissue, because the svt cl was the best amp i have ever played through, and i heard they are very similar in tone. Do yourself a favor and buy this harbor frieght security bit set, lest you be tempted to use an incorrect bit and fatally strip the screw. Changed some resistors and coupling caps without any result. The ampeg j20 is a very cool amp from ampeg that is very closely modeled after the old brown fender deluxe, the 6g3 circuit. Ampeg jet j20 blue diamond opinions wanted the gear page. Just using a cable going right from the gibson melody maker to the amp. Customs services and international tracking provided. Ampeg j20 jet 20watt 1x12 guitar combo amplifier j20jet. The year of manufacture was identified using info from ampeg archives and the cts pot date codes as follows. It is a single channel amp with tremolo and a grand total of 4 knobs. The ampeg diamond blue series j 20 jet was a pleasure to have in gearwire studio.
Ampeg gvt series gvt112ew 1x12 guitar amplifier cabinet. Ampeg jet j 20 j 20 j20 combo amp vinyl amplifier cover ampe076. More than 30 years in business, worldclass customer service, fast. Seems im always thinking of other things to do, and this is no different. I regretted returning that amp and have been looking for another to replace it. The superjet was lush and impossibly clean and lovely, so im hoping the j12 will be similar. So, half and below of that is a real good price for what it is. The circuit surprise also has nothing in common with vintage ampegs, but is actually very close, circuitwise to a 6g3 brown deluxe. The j20s preamp has three 12ax7 tubes, while the power stage is built off dual 6v6s in fixedbias mode. See who uses ampeg j20 jet 20w 1x12 tube guitar combo amp, including. Well, after being very impressed by an overpriced ampeg superjet reissue today, i pulled the bin trigger on a jet j 12r ii. Harmonix 12at7 ecc81 vacuum tube large plate format, superior dissipation over the originals.
Chrome front facing w white screen labels numbered 1 through 10 knobs. I finally found one on cl a few weeks ago but the seller wanted too much for it some. Ampeg j20 jet 20w 1x12 tube guitar combo amp musicians. Published on feb 20, 2010 playing around with my new ampeg jet j20. Free shipping, free 2year warranty on nearly every product, free tech support from audio experts, tubes. Sep 27, 2007 j 20 s preamp section boasts not one, but three 12ax7 tubes, and its dual 6v6 output stage operates in fixedbiased mode. The 12 celestion vintage 30 speaker beautifully handles up to 60 watts of power at 16 ohms. Retube your ampeg j20 diamond blue jet amp with our preselected audio tube kits. Vt22v4 amp schematic 1970 ampeg vt22v4 amp schematic 1974 magnavox vt40 amp schematic 1971 ampeg vt40 pre amp schematic 1971 joe piazza vt40 power amp schematic 1971 joe piazza also worth checking out is the blue muse unofficial ampeg page. In the image above, youll see the schematic for the amp.
Premium jj tubes provide unmatched tone and classic ampeg eq offers flexibility and control. It is not a clone, there are some differences, but it is remarkably close, and it does have the great bias vary tremelo, as used in the 6g3 deluxe and also in amps like the princeton reverb. The ampeg jet 20 j 20 combo amplifier is a remake of the original jet. The amp is point to point wired which gives it a great basis for mods or repairs, however it had a few weak points.
Some of you might remember that i bought a used ampeg j12t about a year and a half ago. Our tube replacement kits are designed for your amp and come in. The manual from ampeg includes a nifty section on tubes worth having the whole thing just for that section, and the section on the amp, its self is good, too. Driver jj 1 x 12ax7, 2 x 12au7 power amp jj 6 x 6550. Some of you might remember that i bought a used ampeg j 12t about a year and a half ago. The simple volumetone control setup makes it easy to quickly dial in just the. I just fnished a one hour jam session with this baby and it is one fat guitar amp. I finally found one on cl a few weeks ago but the seller wanted too much for it. Now ampeg has dipped back into the vault to revive another of their classic bass amps.