This vintage amp sounds sweet and clear it starts to break up very fast not at the end of the curve, but well before you hit 50 % on the volume knob. A quick resolder after finding the schematic and this old girl was ready to rip again, with tremolo. These guitar amps come in tube or solidstate configurations. Hey all, i was curious as to how many of you are familiar with the univox amps. Univox u1220 dual 6l6gc reverb tremelo tube amplifier guitar amp w cabinet.
On this page you can find and free download service and repair manuals for samsung tv. Univox u320apb hunt amplification guitar amp repair. I would like to draw some circuits, no simulation, but drawing inkl. Added 3prong power cord, rebuilt power supply, new coupling caps the old paperinoil caps all leaked dc. U 42 cabinet resembles supro style black sparkle vinyl with two piping. Videos pertaining to the philadelphia pop music group univox.
Univox u320apb this amp is very similar to the u305r, but with 7591 output tubes. We have 3 univox dls 50 manuals available for free pdf download. We have a huge schematics inventory, projects section and forum. I just picked up this vintage univox amp and there are a lot of cut wires. Ive got a 59 orpheum that was made by univox in japan that is also a dual 6aq5, single 12 amp. Univox u48b made in 1967, also marketed by lafayette in baltimore. Univoxaudio is the exclusive distributor in the uk and ireland of the world leading univox brand of hearing induction loop amplifiers. Up for bid a circa 19611965 univox u 42 guitar amplifier. The nut on the tremolo knob had become loose so the knobpot would just spin around forever, eventually ripping the leads from the potentiometer to the pcb out. The professional induction loop series is capable of driving perimeter, figure 8 and multi loop systems for area coverage up to 1800m these products are used in a wide range of applications such as small, medium and large meeting rooms, conference suites and places of worship, theatres, etc.
So, youve got, in the u45b, a fine jensen 12 speaker that fits tightly and without rattle against some nice solid wood. Dls 50 is developed for maximum power, versatility and ease of use and is equipped with univox automatic volume control dual action agc for a smooth. Samsung tv repair manual schematics smart tv service. Amp sounds really healthyexcellent, but the tremolo is not working at all. I installed the univox dls 50 in my fatherinlaws tv room by going into the crawl space under the floor and attaching the loop wire to the bottom of the floor joists. Univox also distributed guitars by matsumoku, effects units by shinei companion, and synthesizers by crumar and korg. That schematic shows a duet of 6967 outputtubes, and diodes used as a hardwired, internal solidstate rectifier. Loop amplifiers univoxaudio is the exclusive distributor in the uk and ireland of the world leading univox brand of hearing induction loop amplifiers. Vintage univox 1960s u50 tube pa tube guitar amp head. There is also a huge library of effects and solid state schematics. Rightclick to save the file or leftclick to open from your browser. It doesnt have the u305rs great tremolo circuit but the reverb is a little nicer due to its larger tank. Years ago i got a univox u65rn amplifier thrown in along with a guitar i bought.
All the 50 year old dried up oil in paper caps replaced. Via the online forum, members can participate in group discussions. Tube amp theater univox lafayette guitar amplifier u320. This is the real schematic for how the westbury custom and super custom were wired with the 6.
Univox is a name that i havent heard from since the 70s. The product range is extensive covering applications from in home and personal use to professional large area systems, counter systems and system for transport. Univox sls1 is intended for small rooms with no or moderate metal attenuation. U 20152005 cabinet 2 univox 15 speakers with 6 horns. Another is a u 305r, which has trem and verb but power trans have higher voltages. Make offer vintage 1968 univox u 320 pb 60 watt tube half stack guitar amplifier mint.
The one next to it is 50 microfarad 150 volt capacitor, the third one is a 20 microfarad 350 volt capacitor and the last is a 10 microfarad 350 volt capacitor. Free schematic diagrams free electronics schematic diagrams downloads, electronics cad software, electronic pcb software, guitar wiring diagrams, tube amplifier schematics, electronics repair manuals, amplifier layout diagrams,pcb software for making printed circuit boards, amplifier design software cad for drawing circuit diagrams. Easyeda easyeda is a free, zeroinstall, web and cloudbased eda tool suite, integrating powerful schematic capture, mixedmode circuit simulation and pcb layout in a seamless crossplatform browser. U 50 lead 1, 2 50w, 4 inputs, 2 channels, reverb and tremolo.
I just picked up a lafayette la100r guitar amp, clearly made by univox. Its incredibly good sounding, and produces a fantastically rich overdrive with harmonic overtones. Ac15 reissue pre amp schematic, ac156002 iss 1 vox, 1996. Anyone work on one of these or other similar japanesemade amps. Volume, tone and tremolo are the knobs and thats it. The late univibes single rubber version had c17s polarity orientation the same way like the early univibes had it too, but most clone builders follow the 915 factory schematic, the rg schematic or the turretboard layout which they got it wrong for c17s polarity orientation. Unicord univox introduces a group lineup of amps including u50par pa. You can buy accessories making it possible to use your univox dls50 in even more ways. Regular wear and scratches on the face from use but still a solid amp. You wont be able to find out much about this amp, i fear, unless you run across some univox fansite on the internet. We created several and we have redrawn some schematics that were already available on the internet for readability or ease of use these needed an easiertoread format, corrections or part identifiers. Univox super fuzz readyfortransfer to printed circuit board for use only if you are a complete diy person who wants to etch and drill your own pcb.
Supro supro 6420 supro 6625 supro 6651 supro 6688 supro 6698. Anyhow, thats pretty close, though i imagine some tuning with a trimmer would help. The batterypowered circuit is the first reference to a completely. So, im trading my 1970s lab series l3 solid state for this rare and unique tube amp. Also here are more than 500 samsung tv schematics diagrams. I had a bag of 50 2n2222a, so i just tested them one at a time until i found two that matched exactly for q4q5 and didnt bother worrying about how close the others were though i purposefully mismatched q1q2 based on other posts in this thread. I wonder just what that tube rectifier is showing in that pic. Univox 335 semi hollowbody cherry burst nice made in japan w new gator hard case. Sls5 are substantially smaller and lighter than its predecessors. Univox dls 50 manuals manuals and user guides for univox dls 50.
For example you can connect univox dls50 to the 12vcigarette lighter output in your. Since the univox model u320apb is fairly rare you might consider tracking down a old ham radio guy or guitar tube tech in your area to work out the fine circuit details. I like to think that my lp copy is a univox, as well, but its completely unbranded and univox usually branded their goods. I will have to recap it, but it looks to be an interesting project. It was the funky blue head with the stacked 2x12 matching cab. The original unidrive was in a wahstyle enclosure, with the foot pedal controlling the overall volume and a rotary switch setting the input attenuation which corresponds to the amount of transistor clipping that occurs. Among the rarest of the rare, the unidrive pedal was famously used by both hendrix and page. From online research i found there are different variations. If youre looking for the real deal in guitar amps from the sixties this is it. Hear clear tv sound thats sent directly to your ears no receiver, no headset. Free schematic diagram download, electronic schematics, amplifier circuit diagrams, amp schematics, wiring electronics diagram, guitar wiring diagrams, tube amp wiring, amplifier schematics download. Likely the first allsolidstate univox amplifier, bt505 bass, appears. Univox dls 50 user manual 4 pages compact and powerful induction loop amplifier for tvmusicmicrophone.
Ive been looking for a good sounding clean amp to run aby with my sibly, and this one delivers in spades. Tube amplifiers home schematics univox schematics univox u45 univox u45. I recently checked out a univox b series amp that was just killer. The unit uses 50 watts of power into a 3 ohm load according to the. Tube amp schematics index page there are over 3500 tube amp schematics and other types of schematics in the el34world schematic library. From a quick overview there appears to be circuit several areas that would benefit from some tweeking. Transformers are not usually designed for amps, amps are designed to use existing transformers. It was rated at 50w but sounded more like about 30w at best. Univox equipment has been used by many reknowned performing artists, such as jeff beck, kurt cobain and the band led zeppelin. There are hundreds of pages of tube amp information on my library page. I can take files of any kind via email, and if you. The univox cls1 wireless personal loop amplifier system transforms your hearing aids with tcoils, cochlear implants or earpiece into personal loudspeakers. User guide for example you can connect the dls 50 to the cigarette lighter in your car with a 12v adapter and use the dls 50 to hear on the phone with a phone adapter.
Univox u75 2x10 tube combo 1966 blackblue jensen c10s. Unfollow univox guitars to stop getting updates on your ebay feed. Otherwise, we recommend you ignore this pcb mask and buy the readytosolder printed circuit board or complete kit. Hoping to find a univox rickenbacker bass clonecopy to play through the bass head. Univox a group 1971 these transistor amps had black tolexcovered cabinets with vinyl handles, black grillcloths surrounded by white beading, and some had corner protectors. The site also features an online forum which features community news, regular contest announcements, and more. Univox u302 all tube amp with tremolo and 1 15 speaker. Vintage univox u 3022 6string steel acoustic guitar made in japan right vintage univox sr 55 analog drum rhythm machine korg mini pops mint. Circuit design is point to point wiring, schematic most similar to u255, about 2030w.
This vintage amp sounds sweet and clear it starts to bre. Its a combo amp with a single 12 speaker, described as a soft 50watt amp i. Unicord had a stock of suitable power transformers that just happened to have a 6. These products are used in a wide range of applications such as small, medium and large meeting rooms, conference suites and places of worship, theatres, etc. Hard to come by any real info on it but i have found a couple similar schemati. The tone control reduces the gain as you turn it to treble, which keeps it from getting fizzy or harsh. Click the link above for tube amp info, schematics, board building information, projects.
The univox loop amplifier is a wireless loop system transforms your hearing aids with tcoils, cochlear implants or earpiece into personal loudspeakers. In instances where sls3 works well but with unnecessary headroom, we can now offer a better fit at a very attractive price. Univox 1969 lectra model 1970f violin bass reduced for sale online ebay. Univox ud50 unidrive volume harmonic booster effects. Forums and discussion of recording, guitar, bass, keyboard. The closest is a univox u 152 though it has neither tremolo or reverb. For sale is this 1970 univox unicord ud 50 unidrive overdrive pedal. This amp is very similar to the u305r, but with 7591 output tubes. This is a unique beautiful vintage time capsule that has been completely restored to like new condition. The monad vintage boost is an adaptation of the univox unidrive ud50. So far all of my web searches have been for naught.
The univox dls50 box contains loop amplifier and switched power supply as well as the chosen loop solution see pictures at first page. Dls50 is developed for maximum power, versatility and ease of use and is equipped with univox automatic volume control dual action agc for a smooth sound experience. This project is from the geofex site, with a link to a schematic file there. User guide for example you can connect the dls 50 to the cigarette lighter in your car with a 12v adapter and use the dls 50. Click the link above for tube amp info, schematics, board building information, projects, mods, transformer diagrams, photos, sound clips. May 29, 2016 they even put the isolating washers on the 14. At the core of this unique approach is a powerful software engine that enables you to capture schematics, design pcb boards and layouts. If the tone is all the way down and the volume is cranked, it has a good crunch but does not distort very heavily. The univox dls50 loop amplifier is a wireless loop that transforms your hearing aids with tcoils, cochlear implants or earpiece into personal loudspeakers.
Monad univox unidrive guitar pedal pcb aion electronics. There is a digital cable connecting the tv audio to the stereo amplifier and there was no line level analog audio signal available from the tv or the stereo. This is a hybrid amp with transistor input stages and tube output. Univox dls50 is a compact yet powerful loop amplifier for wireless listening through your hearing aid. These are typically the hardest to find schematics on the web and in personal collections. There are examples of univox model u320apb being converted from 7591 power tubes to 6v6 during the period where 7591 not in production. Test equipment schematics and software 8 univox schematic diagrams 24 urei schematic diagrams 12 video game schematic diagrams 2. If you see a problem with any of the schematics, please email me so i can fix the problem. The amp was 100% original, untouched tubes replaced. I have no experience with this particular amp, however, i suspect that its point to point or pcb wired discrete components in other words, not to hard to test, or repair. Vintage 1968 univox u 320 pb 60 watt tube half stack guitar amplifier mint. Univox was a musical instrument brand of unicord corporation from the early 1960s, when they purchased the amplifier corporation of america of westbury, new york and began to market a line of guitar amplifiers.
Bargain bin heaven amp schematics airline garnet gretsch. Musicians appreciate univox amplifiers for their distinct, vintage sounds. Its a brilliantly simple schematic which produces highly natural overdriven tone. Univox community currently has over 3 million members, and is growing every day. Used univox limited edition double cutaway single pickup electric made in japan. In this video we will discuss and demonstrate the tone on a 1970s univox pa head. Thats why we have pulled together 46 of the top pcb design software tools for electronics engineers to save you time while you are designing your projects. These limits are designed to provide reasonable protection. In the univox u 1236 i have there are 4 electrolytics. I dont know about any equivalents, but i think that you can buy new production 6967s, as well as n. Prowess amplifiers offers resources for the guitar tube amplifier builder. Univox diagrams, schematics and service manuals download for free.
Also in 69 through 71 the entire model run, univox rated those amps, even with the same circuit as yours, at 100 watts. Most early univibes double rubber version had r37 for 47k but also some early ones from the same year had r37 for 100k. But most clone builders follow the 915 factory schematic, the rg schematic or the turretboard layout which they got it wrong for c17s polarity orientation. Here is a list of the schematics that are exclusive to this site. Only about 10 watts, but it stays clean at least what i call clean up to about 34 on the volume. Enjoy the lowest prices and best selection of univox guitar amplifiers at guitar center. Westbury custom pickups 12kb this is the real schematic for how the westbury custom and super custom were wired with the 6position varitone. Free univox diagrams, schematics, service manuals schematics. Includes the univox amplifier and loop pad that goes on the seat or under a seat cushion. Its simple to set up and use without compromising its crystal clear and powerful sound to the hearing aid user.
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