June 10, So recently was able to secure a very nice set of AR-2ax off the ‘bay. Local guy and he delivered to my door in their original boxes. The grills had never been removed. Very nice cabinets with hardly a flaw. These were made in June, ‘ While doing this work I began to contemplate how this crossover worked – and in fact it is surprisingly crude or sophisticated depending on your perspective. Both the mid and the tweeter are simply hi-passed – which means they receive ALL frequencies above their crossover point Hz for the mid and 5k Hz for the tweeter. The woofer is low-passed with a coil. Simplicity – not even a first order crossover – just two high-passes and a low pass in parallel. This means the designer was relying on the natural electrical and mechanical roll-off of the mid range unit to cut off its response above 5 kHz.
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This information original was found on The Unofficial Ampeg Page http: I pulled this information from Google’s cache of the site. It has a note at the top of the page that they were reprinting with permission from the authors of Ampeg: If anyone feels this page should be taken down, please feel free to contact me. Ampegs can be divided into six distinct groups for dating purposes: Each group uses a unique serialization scheme that can be used to assist in dating the amps, but in many cases, it is the features and characteristics of the amps that determine the year of manufacture.
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For an overview, see Magnatone Custom Series , or for a history of the Magnatone amps from , see The history of the Magnatone brand. Serial Numbers Serial Numbers are located on the back panel and are listed with the Model. I haven’t have been able to find any concrete information regarding serial numbers for these amps Though its not critical a critical aspect of the history of these amplifiers, the more we know about serial numbers, the more we can make guesses on production numbers.
Early Custom Nuances Early Custom’s were build without the interlock switches, although the interlock was on the schematic inside the amp. The metal part of the handle had a bare metal finish on early models, and soon there after they started to paint them black. Also, the badge plates were different on the very early Customs, eventually they were produced with the large “M” below right.
It is possible that the first models had yet a different plate than the style of the early M7 plate below. Magnatone Badges This rather cheesey acrylic badge was used on some Customs. Besides this very early M4, I’ve seen it used on other early Customs as well as some Silver Customs.
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The company has been steadily increasing its U. In January , the company announced plans to expand its U. The DoL investigation revealed that Cognizant had achieved No fines or visa restrictions were imposed, since DoL did not discover any willful violations.
Another interesting question is the speakers. The “Orange Book” has no pics of the interior of any speaker cabinets. Rumor has it that the American amps were delivered empty for shipping reasons and then loaded with the same aluminum dome CTS speakers that .
History[ edit ] The Fender Twin has gone through a number of changes over the years, both cosmetically and electronically. October Twin-Amp, model 5E8. Dual rectifiers and 6L6 power tubes, twin 12″ speakers. The early models of the larger “narrow-panel” tweeds are also remarkable for their refined electronics whose circuit design incorporated dual 5U4 rectifiers in the Twin and Bassman models, another improvement given Fender’s quest for a louder, cleaner amplifier.
The entire line of Fender amplifiers from to later for smaller models and Bassman was uniform in this look—tweed or “airline linen” covering with a maroon with gold stripe woven saran grill cloth. By the end of the decade, a JBL 15″ speaker was available on special order for the Pro model. This “hi-powered,” tweed-covered design continued into early , after the other Professional Series of Fender amplifiers had made the transition to the modern brownface design.
The exact plight of the Twin-Amp during the months between January and May however, remains open to considerable speculation, debate and study. The prevailing explanation is that production was temporarily interrupted during these months as they coincide with the debut of Fender’s new “flagship” or top of the line amplifier, the Fender Vibrasonic -Amp.
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This list is circa , and some codes have been reassigned or added since that time. Code formats were not completely standardized, but a little deciphering will generally yield the info of interest. Note that many makers also stamped OEM Original Eqipment Manufacturer part numbers above or below the EIA code, in some cases parts makers or the customer elected not to include the EIA codes, so not all parts have them.
They generally follow the following format: One alternate scheme is:
Heres a quick way to date Fender amps (’). View the underside of the chassis (flashlight helps alot)look for the reverb driver trans. Its in the middle of the 6 preamp tubes with the removable shields. You’ll find 2 rows of numbers, top set is the Fender part #, always starts with a .
Musicians are always looking for the right tone; many may spend a lifetime trying to find and perfect it. You can greatly improve or modify your tone simply by changing your speakers — and it’s easy! These numbers always begin with ” ” , and are followed by three or four digits in various combinations. If three digits are present, the first digit would refer the units of the year i.
If four digits are present, the first two digits refer to the year i. The last two digits would refer to the week of the year i. The format may look like this: Fender has used only a handful of different speaker types over the years. There are other methods used to date “Silverface” amps, you will need to get the date codes from your speaker frame, tube chart or pots. Check out our helpful wiring diagram information or recommended replacements for your amp You may find it so easy that you will even want to do it based on the type of music, gig, or venue you are playing.
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Paltalk The 1 Chat Community, according to their own saying. Questions start to flood your mind: Do I offer to pay? If you want to see if he is long-term material, you have to inject some of yourself into each date, too. Maybe you let him pick the restaurant to begin the second date, and maybe you base the date on his love of basketball. Use your power well, and you will be able to prolong the tingles, quivers, shivers and magic of that first date through several more encounters before you decide if he is worthy of the ultimate reward.
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Tweet Welcome to our first review. We will strive to make each review rich with information and content, including inside gut shots, electrical schematics, audio, video, manufacturer specs and more. Since this is our very first review, please excuse any rough spots. We welcome your comments and feedback. Five watts of hand-wired boutique tube heaven for a fraction of the cost. Lots of midrange growl and creamy overdrive. Use as a practice amp or at small venues.
Lots of tube overdrive. Cheap cabinet materials and shoddy construction. Polypropylene caps Orange Drops! How It All Began…. It was dirty, dusty inside, and a little beat-up. Later, we discovered that someone must have upgraded the capacitors with new Orange drops more on that later.
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Gibson Electric Guitar anbd Bass Serial Number Date Code Information. Serial numbers show approximate date of manufacture. For all dates, you will need to look at the construction technique and components used to get a more precise date of manufacture.
Judy 0 I bought them used in a Fender cabinet without the amp! The early amps woodie and tweed had serial numbers handwritten on the tube chart. At many points in Fender’s history, large caps. It used to be possible to date Fender amps by the numbers. General specifications, scroll, near the box with the serial number which is K , speaker. With all this information in mind, Speaker Configuration.
At some point in , the serial numbers are date encoded much the same way as Fender dating fender amp serial number identification from the late. LE, if for no other reason, but there’s also a serial number on the plate on the back side of the amp, Bandmaster, Fender produced approximately model 5B6 Bassman amplifiers serial numbers Link to Rickenbacker serial numbers and info?