Like other ampeg amps of this era, the jet 12 experienced some variation both in its enclosure style as well as in its electronic configuration. Ampeg pf350 sch service manual download, schematics. Ampeg has a strong legacy in the world of vintage amps. If we accept that the ampeg reverb circuit is a noteworthy stop on any tour of. But after over 15 years, the jet needs a little work. For greater savings check out our used ampeg jet ii j12t tube guitar combo amp and get a great deal today. The schematic looks like an exact print of the ampeg j12b jet schematic, except, as shown in figure 3, the lower corners were neatly cut out. I was content with the original speaker labeled ampeg, but it blew and i want to replace it with something in the 50 watt range amp techs recommendation. 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. The preamp uses one tube for 1 gain stage,and two triodes for the driver. One of the worlds great amplification brands, ampegs history goes back to the end of wwii and everett hulls patent for a device to amplify violintype instruments, called an. View and download ampeg vt120 owner reference manual online. Ampeg jet model j12 20watt 1x12 guitar combo 1960s reverb.
Its the pure sound of a jet ii from the 1990s, captured with an ev dynamic microphone. For more ampeg v4 information see the ampeg v4 pages. Ampeg j12b jet schematic redrawn by steve luckey on october 10, 2012 6 4 5 47k 1m 100uf 2. Free ampeg schematic diagrams ampeg schematics free. I replaced the 2 triple triodes with 2 12ax7a double triodes. Ampeg heaven amp schematics schematic amplifier echotwin. Discussion in amps and cabs bg started by sethplaysbass, oct 29, 2009.
The software model was so accurate that it even replicated this design flaw. Ampeg went through some easilyrecognized periods in its history, and was a very successful company in its time. Ampeg jet ii super jet 50 watt amp in great working condition with a road case and manual for a jt21. It does not make it easier that i can not find the right schematic. I found that of the 6 power tubes only 1 was working at full strength.
Tremolo can get very bumpy when turned up past about 6 to the point where you just cant bare it. Although specializing in the production of bass amplifiers, ampeg has previously manufactured guitar amplifiers and pickups and instruments including double basses. I have just restored a 1966 ampeg jet guitar amplifier. B12nb schematic b12nc schematics b12nf schematics b12nfjp schematics b12njp schematics b12x schematics. During world war ii, data gleaned from their intensive research on the detectors used in radar. Thank you for selecting the ampeg classic jet guitar amplifier. I like 60sbritishsurfrock n rollrockabilly sounds and play an 89 usa strat and 97 gibson sg. Ampeg is a manufacturer best known for its bass amplifiers.
We have a huge schematics inventory, projects section and forum. Complete tube set for your ampeg gemini i g12 and gemini ii g15 includes. Skip to main content skip to footer site5112829003 used 112829003 ampeg jet ii j12t tube guitar combo amp. Chrome front facing w white screen labels numbered 1 through 10 knobs. Turns out, it is based closely on the fender brownface era deluxe amp. J12t jet 15w r12r reverb rocket 50w r212r reverb rocket 50w r50h head reverb rocket 50w. Oct 21, 2016 its the pure sound of a jet ii from the 1990s, captured with an ev dynamic microphone. The amp is point to point wired which gives it a great basis for mods or repairs, however it had a few weak points. This unusual amp which we might want to call the jetreverb is owned by vg reader. Discussion in amps and cabs bg started by vitamin j, may 3, 2015.
Although specializing in the production of bass amplifiers, ampeg has previously manufactured guitar amplifiers. The year of manufacture was identified using info from ampeg archives and the cts pot date codes as follows. 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. Get the guaranteed best price on hybrid combo guitar amplifiers like the ampeg j12t tremolo amp at musicians friend. Ampeg diagrams, schematics and service manuals download for free. Tube set for ampeg g12 gemini i, g15 gemini ii product. The super jet is a smooth ride with 50 class ab watts, a single 12 ampeg vintage speaker, alltube design 2 6l6s and 2 12ax7s, reverb, and tremolo. I discovered one of the reverb springs floating in my trunk after a gig. Dec 29, 2017 ampeg jet ii model j12t reverb and tremolo range on clean sound.
The ampeg jet ii reissue or j12 t was a shortlived 15 watt tube combo featuring a single 12inch speaker. Inherited this along with a marshall jcm2000 tsl 122, a fender super reverb, and an ampeg v4, and the two ampegs are the only ones i kept. G15 gemini ii schematics g20 schematics g100 schematics g110 schematics g212 schematics g410 schematics. If you want to join us and get repairing help please sign in or sign up by completing a simple electrical test or write your question to the message board without registration. Ampegs jet reverb prototype vintage guitar magazine. Tubes free delivery possible on eligible purchases. You can write in english language into the forum not only in hungarian. J20 schematics j20 jet owner manual m12 with 6v6 schematics m12 with 7591a schematics m12a schematics. Line 6 is a music instruments manufacturing company that specializes in guitar amp and effects modeling, and makes guitars, amps, effects pedals, multi effects processors, guitar wireless, vocal wireless, music software, recording interfaces, digital mixers, and personal amplification speakers.
Ampeg jet ii model j12t reverb and tremolo range on clean sound. The pi is a splitphase type with a driver stage before it, feeding a pair of. Ampeg pf350 sch service manual download, schematics, eeprom. Ampeg a120 schematic 120 watt rms rack mount power amp. Originally established in 1946 in linden, new jersey by everitt hull and stanley michaels as michaelshull electronic labs, today ampeg is part of the yamaha guitar group. The stock speaker sucked period, i replaced it with a weber 12a125a 30 watt alnico, light dope and it sounds great. G15 gemini ii gs15r gemini iv gv22 gemini 22 j series j12a jet j12b jet j12d jet m series m12 6v6 mercury m12a 7591 mercury m15 mercury. Normal in, bright in, volume, tone, red dome pilot, speed, intensity, standby switch, power switch rear. The lower left hand corner would ordinarily be where the ampeg model number would be, whereas the lower right is. Ampeg j12t jet ii guitar amplifier, played clean youtube. Vintage ampeg jet j12 questions discussion in amps and cabs started by fiercepromotions, jun 24, 20. Well, after being very impressed by an overpriced ampeg superjet reissue today, i pulled the bin trigger on a jet j12r ii. With new 6550s installed at idle it seemed fine but when driven some tubes would exceed 200ma while others were only drawing around 80ma.
Vt120 musical instrument amplifier pdf manual download. Hi all, just wondering if anyone out there has an ampeg svt ii non pro version schematic. Ampeg amp schematics to assist you with your amplifier repairs and modifications. Based on the ampeg ba500, a high quality solidstate bass amp with a sonic. Ampeg is almost as well known for its b15 and svt bass amps as gibson is for the les paul. Theyre permanent fixtures on pro stages all over the world, and have featured on countless gold and platinum recordings. I found a schematic of an earlier ampeg jet with two double triodes,and used that schematic for the conversion. Prowess amplifiers offers resources for the guitar tube amplifier builder. Hi guys, i just want to see first of all if anyone has the full schematics for the ampeg svt3pro head. J20 jet current production clone of fender 6g3 brown deluxe hand wired. Ampeg amp schematics to assist you with your amplifier repairs and. Ampeg guitar tube amps are very gentle on tubes so i guess thats why they last so long and thats a good thing. Ampeg b12n schematic 25 watt 112 guitar piggyback portaflex design. The superjet was lush and impossibly clean and lovely, so im hoping the j12 will be similar.
Get a low price and free shipping on thousands of items. In this era, the model was also designated as the j12d jet and used a solidstate rectifier. I was told that if this was indeed a vintage ampeg it should have the number stamped on the chassis. Free download ampeg jet amplifier model j12d schematic diagram electronic schematic circuit diagram, download ampeg jet amplifier model j12d schematic diagram electronics wiring diagram, free schematic, free schematics. The lower left hand corner would ordinarily be where the ampeg model number would be, whereas the lower right is where the ampeg logo would reside. I also purchased a new ampeg j 20 reissue pretty darn cheap about 6 months ago. 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. Mar 09, 2017 ampeg guitar tube amps are very gentle on tubes so i guess thats why they last so long and thats a good thing. Normal in, bright in, volume, tone, red dome pilot, speed, intensity, standby switch, power switch. I havent used a tube amp as my main squeeze in 6 years back then it was a fender bassman and an ampeg gemini.
Ampeg b12x schematic 25 watt 112 guitar piggyback portaflex design. Schematic the removable back panel has a schematic on the reverse side labeled model no. Based on the original from 1971, the ampeg v4b 100w alltube head embodies the legendary tone of the classic v4b in a toughasnails package, ready to take the stage with the flexible output control and pure vintage ampeg grind you crave at volume levels ideal for modern venues and applications. Does anyone have a suggestion for a replacement speaker for a 90s usamade ampeg jet j12t.