Just remember, the lower this control is, the more it’s sucking mids OUT! The “Low-Res” control boosts everything below about 100Hz and is superb at making small cabs at low volumes sound huge … but … be careful, with 100 tube-watts all that bottom end can easily over-excurt and blow speakers at higher volumes! Sleeper Amp Alert: The B-52 AT-100. B-52 100-Watt All-Tube Amplifier Instruction manual. It's a decent sounding amplifier but has given me a lot of trouble. Given it’s VERY reasonable price, that officially qualifies it as a “sleeper amp” in my book! Also, PLEASE refrain from making stupid \"omg stfu noob you suck mesa boogies are the best!! © Copyright 2020 Warehouse Guitar Speakers | Terms & Conditions | Legal Disclaimer. Its basically a piece of junk. Special thanks to B-52 for providing this tube socket layout and schematic for the B-52 AT-212 combo guitar amplifier. Signing up for our newsletter will keep you informed of promos and speaker giveaways! Im in school for electrical engineering and as sad as it is, we did VERY little with tubes. Login with username, password and session length. An AT-100 that had had its treble and contour knobs busted off. I've played hundreds of amps, you don't need to own one do determine if it sounds good or not. 6 min and by that point, the power tubes are too hott to touch. The problem is, when i bought it from a friend, he said he blew a power tube, 6L6 GC, and it played for 5 min or so and then shut down. I spent a little time under the hood replacing the two pots and then played through her for a while. AT-100 amplifier pdf manual download. I’ll highlight several things to know about the controls. its a triple rectifier and sounded awesome. The problem is, when i bought it from a friend, he said he blew a power tube, 6L6 GC, and it played for 5 min or so and then shut down. It was not made to show off the \"skills\" of the doofus who's playing through it, or the poorly made pieces of wood that he plugs into it. Noah Fink Reviews the B-52 AT-100 Amp. Yeah, that's normal operation huh? Andrew McSweeny's B52 AT212 (AT-212) Information page. View and Download B-52 AT-100 instruction manual online. Hey, Im new to this site but i need help with my B52 AT100. Any amp-tech that says these are tough amps to work on needs to stop telling folks he is a tech! I spent a little time under the hood replacing the two pots and then played through her for a while. Now it can use any 6L6 tube, KT66 6550 or even the KT77 giving you a whole lot more amp for the money. The “contour” knob is exceptionally effective at sucking out a big swath of midrange for a classic scooped metal tone. I wound up with two overriding impressions: 1) that this is a well thought-out and easy to work on amp, and 2) that it sounds damn good. If you would have read my post before bashing it you would realize that they are too hot to touch after six minutes of blazing blue. Evolution of Guitar Amps (Back to the Future Part 2), Evolution of Guitar Pickups (Back To The Future), Best Replacement Speaker Upgrade for Fender Blues Junior, Best Repalcement Speaker Upgrade for Fender Hot Rod Deluxe. I wouldn't believe you if you'd say you've never called something junk out of anger. Hey gang, I had somthin’ cool pass through my shop that I thought y’all might just want to know about. Its been looked at and "repaired" by a few guys. So, for starters, you could pull off the tubes and check that the power supply is providing correct voltages and doesn't have any failed parts. (Note: This video is meant to showcase the B-52 AT-100 amp. (At full-on, the control does nothing.). I'm fully aware by now that Mesa Boogies are great amps, I just feel like this one deserves more recognition, and that it's a better deal for the price. The clean channel can do a great fender-like spanky clean tone, and the two overdrive channels can be set-up for anything from mild JTM-45 crunch to full-on mesa scooped metal tone. Solid State Guitar Amp Forum | DIY Guitar Amplifiers, Re: B52 AT100 worst amp ever - I need help. The work done to it included 4 new Bugera (i know, JUNK) 6L6s, and 6 new capacitors including the big ass filter caps. la7508 b-52 Overall, a great design-project getting the max performance and versatility from the B-52 amp. The bright switch on the clean channel is an ENORMOUS boost, and it shifts the treble control from about 3.5K up to about 5K. Also, after dealing with 20 or so Bugera heads at my Best friends shop, I've made my conclusion about them. I'm looking for a schematic of the B-52 AT-100 head. There ya go! They light up fine when its on standby but as soon as I take it off, they light up blue and there is a clicking noise, every time, coming from the side of the biggest transformer. Hey gang, I had somthin’ cool pass through my shop that I thought y’all might just want to know about. Noah Fink Reviews the B-52 AT-100 Amp.\r\r(Note: This video is meant to showcase the B-52 AT-100 amp. An AT-100 that had had its treble and contour knobs busted off. This is one super-versatile 100-watt head! It was 800 new. Warehouse Guitar SpeakersPO Box 352Paducah, KY 42002. Its basically a piece of junk. This page provided for B-52 AT-212 amplifier enthusiasts. Hey, Im new to this site but i need help with my B52 AT100. The two tone-stacks have very different frequency-ranges, especially the mid control which is centered around 800Hz on the overdrive channel, and apx. She IS a Chinese made PC-board amp … as are most under a grand tube amps these days, but … she is well laid-out and very tech-friendly inside. Use caution with this switch if you value the upper portion of your hearing! Its been looked at and "repaired" by a few guys. Well, if you are just going to take every expression of frustration and turn it around to make me look like I know nothing, i'll just be moving on. !\" comments. B-52, made in china, designed by bruce egnater, specs: • All-Tube Signal Path • Tri-Mode Rectifier: Tube - Class A or AB, • Solid-State - Class AB • Overdrive Channel: Gain 1 and Gain 2 • Each with Independent Master Volumes, • 3-Band EQ, Assignable Contour Control • Clean Channel: Master Volume, 3-Band • EQ and Bright Switch 1.5K on the clean channel. its a triple rectifier and sounded awesome. There ain’t nothing but good old-fashoned Marshall style layout and a bunch of caps, resistors, and diodes inside her … easy-peasy! It was 800 new. See below for my full-length video review of this cool “sleeper” … one caveat:  at 53-pounds, she ain’t for folks with weak backs! The reverb is a true tube-driven long-spring tank and is perfectly useable, but it will not keep with a blackface Fender on full-tilt surf! How do. But feel free to send me a free Mesa Boogie Rectifier anyway if you feel like you need to prove something). I made this video over a year ago. NOW FREE SHIPPING TO 48 CONTIGUOUS UNITED STATES ON ALL ORDERS!!! The amp will turn on and play for approx. If anyone knows where I can find one, give me a shout.