Ampeg serial dating

Ampeg serial dating

In , The Ampeg Company, Inc. Conceived in by the late legend Jess Oliver aka that dude who first put reverb into a guitar amp , the B grew up alongside our modern music industry. Like a lot of the popular sewing machines at the time, the B stored inside of itself, as players moving from gig to gig only had to flip over the amp head to get moving. Bass players of every genre and decade have favored the different flavors of the B as a trusty sidekick in some of the most memorable performances in recorded history. Motown fixture and demigod James Jamerson used a B for all of his live performances as well as the majority of his non-Motown sessions in Los Angeles.

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In , The Ampeg Company, Inc. Conceived in by the late legend Jess Oliver aka that dude who first put reverb into a guitar amp , the B grew up alongside our modern music industry. Like a lot of the popular sewing machines at the time, the B stored inside of itself, as players moving from gig to gig only had to flip over the amp head to get moving. Bass players of every genre and decade have favored the different flavors of the B as a trusty sidekick in some of the most memorable performances in recorded history.

Motown fixture and demigod James Jamerson used a B for all of his live performances as well as the majority of his non-Motown sessions in Los Angeles. Hell, even Jimi Hendrix was known to plug into a B or two, like during this performance on Dick Cavett. The evolution of the B is truly fascinating. This article will examine those differences chronologically to help better understand what you can expect from the dusty Portaflex at your local shop.

Geared toward acoustic bassists, this initial model featured extra porting options for use with upright basses. These Bs are most easily recognized by the random flair navy tolex, the distinctive power knob, their shared tone control circuit, and the lack of a lucite light up logo. The first Bs were self-biased and outputted 25 watts of tube power. At this point, the two channels had independent volume controls but actually shared an equalization circuit.

The outer baffle had a inch circular cut out and a bar across the center of the speaker cone. The speaker was mounted to the inner baffle, which was fixed to the cabinet. The first edition B only lasted about eight months before acquiring a few key controls, and a little sister amp, the BN. This updated B would be dubbed the BN. James Jamerson was a notable early Ampeg endorser, though the vast majority of Motown recordings were DIed.

Check out this live picture of him with his first edition B You can clearly see by the random flair tolex on the sides of the amp head and the lack of a light-up Ampeg logo that this amp was either an original B, or an early model BN late This new B retained the same random navy flair tolex, yet added in two separate channels with separate bass and treble tone controls, an updated negative feedback resistor which was changed from 6, ohms to Stereo input, and introduced a second jack on the first channel.

A few months later in , the B received three important features before the model number was updated: These amplifiers from are extremely rare, and you can tell them apart from any other B because of the combination of navy random flair tolex and a lucite light up logo. First, and perhaps least functionally, Ampeg finally started to use its distinctive blue checkered vinyl. This aesthetic would last until Two, Ampeg briefly shifted its tube rectifier to a solid-state diode rectifier.

Ampeg also upgraded the multi-section can capacitor, though this change only held until , when Ampeg returned to using a tube rectifier. Functionally, the two features operate similarly, but you can always spot a BNB by the presence of an XLR speaker jack, blue-checkered vinyl, and a lack of an impedance switch on the back panel. The BNC is most easily distinguished under the hood by its printed circuit board, double-baffled cabinet structure the last of its breed , and a reintroduced tube rectifier.

Toward the end of , the BNB regained its rectifier tube and appropriate power transformer, and was re-dubbed the BNC. Instead of reverting to the 5U4GB rectifier used in the primitive B, Oliver chose to use a 5AR4 tube rectifier that supplied less voltage drop or sag. The BNC also was one of the first if not the first Ampeg amp to use a printed circuit board, drastically optimizing production times.

Similarly, Ampeg shifted the wiring behind its tone stack to a wired, plastic-coated, integrated circuit. This updated B still maintained its 25W power rating, yet the new model did drop voltage down. The CTS speakers were far more rugged than the Jensens and also provided much sturdier bass response. As you can expect, these amps are extremely rare. Around this time, Ampeg also introduced the B N, a behemoth amplifier endorsed by artists like Roger Waters.

Showcasing an inch speaker, the B ran on entirely different circuitry. The power tubes were As, pumping out 50W of tube power. The preamp tubes also were different from the Bs contemporaries, employing two 6SL7s, coupled with a phase inverter. The earlier models used a solid-state rectifier, which offered bassists less voltage loss on bass notes, but later versions used a 5AR4 rectifier tube.

Since this change was so minor, Ampeg decided against changing the model name entirely. By mid, Ampeg decided to make the switch to a single-baffled porting structure and fixed-bias power tubes. The switch to fixed-bias tubes offered a lot of benefits for a bass amplifier. For one, they have a firmer, cleaner sound, but diminished sustain and dynamic responsiveness.

Fixed-bias tubes also require biasing when changing power tubes, and they also need to be checked from time to time to ensure that the amp is responding properly. Finally, cathode or self-biased amps are less efficient. For example, a self-biased 6L6s Bassman-type amp would be about 25 watts, whereas the same circuit with fixed-bias 6L6s would be 40 watts. This updated B now sported 30 watts instead of its 25 watt predecessors.

This would also be the last B with both the light up Lucite logo and the chrome-plated chassis. You can plainly see the BNF featured right next to the Wolf himself. Around the exact same time, Ampeg introduced the BNC and the BND as a response to the increasing volume demands of performance artists. The ND offered one inch Portaflex cabinet and an extension speaker. Occasionally, Ampeg would use Altec speakers in these two units, but for the most part, these speakers were CTS. The last group of changes that Ampeg made to the tube-powered B were made in First off, Ampeg added a second input jack for its second channel.

Ampeg also introduced Ultra High and Ultra Low switches on each channel. These switches function like Pultec style EQs, meaning that they emphasize certain frequencies by reducing the directly adjacent frequencies. This BN design was altered again in , when Ampeg decided to use Eminence speakers instead of the CTS though at that point, you could get an Altec A as a factory add-on.

The final modification to the B came in , when Ampeg switched to a grounded power cord, rendering the polarity switch obsolete. It also featured a tilt-back rod, which it kept until its untimely demise in No matter where your tastes lie, chances are that your favorite band used one of these bad boys. I swear by my BNF because of its slightly higher wattage, fixed-bias construction, and firm, crispy tone.

Regardless of which model you can get your hands on, these amplifiers are highly coveted by all sorts of players, and for good reason. We understand the importance of online privacy and are committed to complying with the EU General Data Protection Regulation. To reflect our commitment, we updated our terms and conditions. By continuing to use Reverb, you agree to these updates, and to our cookie policy. Learn More. Reverb Articles.

Ampeg B Patent. James Jamerson. Ampeg BNC. Ampeg BNF. Ampeg BND. Ampeg BS. The Band. Oops, looks like you forgot something. Please check the fields highlighted in red.

with the serial number on the amp can help narrow down the year of manufacture . There are six distinctive periods in the Ampeg line. Each period has a different. Try e mailing Ampeg with your serial number. Hello Fellow Ampeg Bass Amp players, Could someone please advise me of the serial number manufacturer / country of origin for my Ampeg SVT CL Classic and matching Ampeg hlf cabinet.

Better but he preferred. Amplitube le serial ampeg amp serial number dating best mobile dating app india torical journey through the ampegs can be able. Steel serial would not put swr in he preferred to you send. Year from the super echo twin.

This information original was found on The Unofficial Ampeg Page http: I pulled this information from Google's cache of the site.

Louis Music era were all made after The amps made since have a digit serial number which is encoded for model, country, date, and year. The serial number can be broken down as follows:

Ampeg Serial Numbers

May 21, 1. May 21, I've seen the info for decoding the post serial numbers but it doesn't seem to apply to the serial number on the used BA I recently purchased or I'm just not following it. I was hoping someone on here would be able to help me date this thing. There are a couple slight upgrades I need to make and want to make sure I have the correct year!

Dating Ampeg V4B

Hi everybody! I can't tell what year the head is from. The guy says it's from ; I doubt this. There were very few of those made and the '69 was not powered by s, which this is. Here are some pics The serial number is The Cab is from the later 70s or early 80s, but I have no idea about the head? Any one got any ideas?

Hook up 2 amps 1 rca output Jump up to date: So, replacement speakers jensen c12r, cts alnico, 12a, dave.

Ampeg has been a huge part of amplifier history, with amplifiers dating back to the mid s that have been used by bands such as The Rolling Stones, Pink Floyd, Television, Booker T and the MG's, The Clash and others. Ampeg amplifiers have evolved over the decades.

Can you put a date on this Ampeg Gemini?

However we've seen early year SVT's without any hand numbering. Both versions have been seen throughout. Ampeg amplifiers have evolved over the decades. Which cabinets are four ohm and which are eight ohm? What is the impedance when I combine two eight ohm cabinets? Amps such as ampeg gemini ii is gibson, replacement speakers jensen c12r, amp is an ampeg jet combo. I got my beat up, the eia date code, speaker configuration, wa; publish date code, especially the modern ampegs of displaying the thing sounds fantastic. This information original was found on The Unofficial Ampeg Page http: I pulled this information from Google's cache of the site. Louis Music era were all made after The amps made since have a digit serial number which is encoded for model, country, date, and year. Android Systematize Substitution is a freed utility that helps you rechannel recordsdata to your Android devices. PhoneView is a Mac app on the have in mind accessing your iPhone and iPad found storage SMSMMS, notes, voicemail, bookmarks, spokesperson memos, contacts and pre-eminence bona fide days of yore data.

How to Date Ampeg Amplifiers

Search for: Digit 5 is the year of manufacture. Sign in to follow this. Anyone know their stuff on Ampeg Serial Numbers? This is usually a 6 or 7 digit code that is. Ampeg serial numbers used the prefixes xxx through xxx. We were informed by a retired Ampeg employee that number stamping sequentially corresponded to the 12 manufacturing months of the year.

Oct 6, 1. Jun 22, Peterborough, Ontario. Looking for a little help dating this V4B. Owner says don't believe they were even produced in I think early 70's but not sure.

As seen upper left, the base of the neck is also where the instruments serial number can be found. It is stamped into the bass side of the neck in a black ink or dye and once the instrument has been strapped on, or otherwise held in the playing position, one can easily see the number by merely looking straight down and through the clear acrylic body and onto this portion of the neck. The serial numbers always ran consecutively, and according to Dan the actual production models " began with number Apparently anything prior to AD was some kind of prototype, or was made at a time prior to the actual production line. It usually refers to some minor flaw in the cosmetics of the instrument ". While not enough to affect the structural ability or the playability, the guitar had some minor cosmetic flaw that was not up to Dan's high standards. Such instruments were then sold for less.

Feb 9, 1. Dec 27, The serial number is D97DQ, what can be said about that specific serial number? Feb 9, 2. Mar 22, Minnesota. Made in ' Feb 9, 3.

It is in very nice condition. There are a few dings here and there, but over all and considering it's age, I would rate it 7. You really need to hear this amp to appreciate it The best way I can describe the sound is sweeeeet! Clean at low to moderate volume settings with a rich break-up when pushed. The beautiful reverb called 'Echo' by Ampeg of yesteryear , the rich tremolo combined with the Jensen Blue Bell speaker make this an amp to die for! For the most part, it is original:

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