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Tojo Bass Evolution 1

In the present paper is shown in Figure 1. Figure 2 shows the generalized stratigraphy of the basin. Previous authors (Baillie and Pickering, 1991; Gunn et al., 1997) have interpreted variously the tectonic and structural evolution of the Bass Basin. Baillie and Pickering (1991) suggested two separate basins. Look no further than GR for the latest PS4, Xbox One, Switch and PC gaming news, guides, reviews, previews, event coverage, playthroughs, and gaming culture. Descargar MP3 Tojo Bass Evolution Intro Bass Operator 1 Gratis. Acabas de hallar Tojo Bass Evolution Intro Bass Operator 1.Pero por si fuera poco, te hallas a un paso de descargar mp3 gratis en alta calidad como no existen en otras plataformas. A SWR Workingman's Fifteen Bass Combo 1x15 in Good condition! At Evolution Music of Logan Square, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get so please check out the.

Payment Terms - Orders Internet orders may be paid for using the following methods: VISA, MasterCard, American Express, Discover, and PayPal. For phone or mail orders you may pay money orders and cashier's checks by mail. Just call us at 773-525-7773 to place your order. All non-credit-card orders are subject to a 10-business-day hold. We do not accept international credit card or PayPal payments from international accounts. For international security reasons, please call the store to arrange a Bank Wire: +01-773-525-7773.

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Shipping Charges - Taxes and Title Separate charges for shipping and handling will be shown on your order form. As a security precaution, initial orders and orders shipping to alternate addresses may be held for extended verification. We reserve the right to make partial shipments, which will not relieve you of your obligation to pay for the remaining deliveries. All items purchased from Chicago Music Exchange are made pursuant to a shipment contract. This means that the risk of loss and title for such items passes to you upon our delivery to the carrier. The published rates are for US domestic shipping only. Contact us directly if you wish to place an international order. For more information on our shipping policies, including rates, delivery times, and delays, please visit our website at chicagomusicexchange or call us at: 773-525-7773. If applicable, a separate charge for taxes will be shown on the invoice. We are required to collect sales tax on all orders shipped to Illinois.

Tojo Bass Evolution 1

3-Day / 15-day Return Policy If you are not completely satisfied with any product, return it for a full refund of the product purchase price, full credit, or exchange of your choice. We give you 3 days from the shipping date on Vintage instruments, and 15 days on New instruments. Credit card returns are issued a credit for purchase price. Refunds are made for product value only, excluding shipping and handling charges. New, Unopened items: You may return most NEW, untouched, unopened items within 15 days of delivery for a full refund. if the return is a result of our error (you received an incorrect or defective item, etc.) we'll also pay the return shipping costs. AmEx credit cards: Note that if your order was paid using an AmEx card we may pass on a 3.5% fee of the purchase price to process your refund. Vintage, Used items: We have to evaluate vintage and used guitars, amps, and other items on a case by case basis. We spend a lot of time with you and the item before your purchase to try to avoid any surprises after your purchase. AmEx credit cards: Note that if your order was paid using an AmEx card we may pass on a 3.5% fee of the purchase price to process your refund. You should expect to receive your refund within four weeks of giving your package to the return shipper, however, we strive to issue your refund sooner. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days). Send your return to: Chicago Music Exchange 3316 N Lincoln Ave Chicago, IL 60657 The following items are returnable only if defective OR unopened or unused: strings, harmonicas, microphones, cleaners, polishes, and polishing cloths. Software/soundware, cassettes, CDs, DVDs, and videos may be returned for credit only if they are in their original, sealed packaging. If defective, these items will only be exchanged for the same product. For complete details on our guarantees, shipping, and return policies, please contact our Customer Service Department at 773-525-7773; fax us at 773-525-2775; visit our website at, or write us at Chicago Music Exchange, 3316 N. Lincoln Ave, Chicago, IL 60657.

Fender Silverface Bassman amp AB165 amplifier, with a 2×15' speaker cabinet

The Fender Bassman is a bassamplifier series introduced by Fender during 1952.[citation needed] Initially intended to amplify bass guitars, the 5B6 Bassman was used by musicians for other instrument amplification, including the electric guitar, harmonica, and pedal steel guitars. Besides being a popular and important amplifier in its own right, the Bassman also became the foundation on which Marshall and other companies built their high-gain tube amplifiers.[citation needed]


The 5B6 Bassman[edit]

During 1952, the Fender 5B6 Bassman amplifier was introduced as a combo amplifier cabinet that included the amplifier chassis combined with one 15' speaker. The 1952–1954[1] 5B6 Bassman amplifiers had two 6SC7 or 6SL7GT pre-amp tubes, two 5881 power tubes and a single 5U4G rectifier tube. It was designed to generate 26 watts at an 8 ohm impedance load, and offered a cathode-based bias.[citation needed]

From 1952 through the spring of 1954, Fender produced approximately 660 model 5B6 Bassman amplifiers (serial numbers #0001–0660).[citation needed] The earlier cabinets have been called 'TV Front' designs,[1] with a front panel that had a rectangular grill cloth with rounded corners and looked much like a television of that era. In 1953 the cabinet designs were changed to the so-called 'Wide Panel' design, with a 5 inch wide tweed covered panel above and below a wider swath of grill cloth. Nvidia windows kernel mode driver download full. Fender ceased production of 5B6 Bassman amplifiers during the spring of 1954.[citation needed]

The 5D6 Bassman with dual rectifiers[edit]

During November 1954, Fender introduced the newly designed 5D6 Bassman amplifier offering four ten inch speakers and was designed utilizing two rectifier tubes. The 5D6 was a major departure from the earlier 5B6 Fender Bassman model. Designed by Freddie Tavares, longtime R&D man at Fender,[2] the new circuit included two rectifier tubes and became known as the Dual Rectifier Bassman.[3][4] Instead of the single 15' speaker, four 10' Jensen Alnico P10R speakers were used. The circuit had two innovations: a fixed bias for the power tubes, which increased power in comparison to the earlier cathode bias design, and a cathodyne phase inverter, using half of the 12AX7 tube and allowing a third gain stage on the other half.[5]

The first 4x10 Bassman amplifiers started with a batch of prototypes in November and December 1954, model 5D6. No schematic for the 5D6 circuit has ever been found, but Ken Fox and Frank Roy have created a few from originals, and copies are freely available online. Only 11 of these early 5D6 Bassman examples are known to have survived. The lowest serial number known to still exist is 0013 (Frank Roy), 0035 (Albert Talley), 0075 (Jim Cornett), 0077 (Perry Tate), 0089 (Mark Grandfield), 0701, 0745 (Walter Horton), 0769 (Hayes Kolb), 0780 (sold on eBay Nov 2006), 0783, and 0785 (Hayes Kolb) are among those still known to exist.

Narrow panel models, 1954 to 1960[edit]

Fender began making other models with tweed covering, a similar open backed cabinet with a rectangular grill cloth and a narrow (just over an inch wide) tweed covered panel at the top and bottom. Produced from 1954 until 1960, these models are called the 'narrow panel' tweed amps .[5]

Fender introduced the model 5D6 'DK' in November 1954 followed by the 5E6 Bassman Amp during early 1955. The 5E6-A Bassman model was introduced later that year and included some evolutionary improvements.[citation needed] Demand for the tweed Bassman amp grew, so Fender increased production. By the middle of 1957 more than 1,500 examples of the 5E6 series had been sold.[6]

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In July 1957, Fender introduced the model 5F6 Bassman. This model also had four Jensen P10R speakers, but the power supply was redesigned around a single 83 mercury vapor rectifier tube, and a new preamp circuit was introduced that included a three knob tone stack, with separate controls for Treble, Mid and Bass. The power amp included a 'long tailed pair' phase inverter, an innovation that noticeably increased the 'headroom' or clean power output capability of the amplifier. Similar preamp changes were also incorporated in the 5F8 Twin Amp at about the same time, but not on other large size Fender amps.

During 1958, Fender introduced the model 5F6-A Bassman model. This final 1950s Tweed Bassman model product line included a change from the 83 mercury vapor rectifier tube to the GZ34 rectifier tube, as well as a modification within the Presence control circuit.[7] During early 1960, Fender began producing the 5F6-A Bassman with Jensen P10Q speakers. The P10Q Jensen speakers are more able to manage stronger electrical input power and generate better 'clean' output sounds than previous installed P10R Jensen speakers. The P10R Jensen speakers were shipped within all Fender Bassmen from late 1954 until early 1960. Many professional music industry analysts have heralded the 1950s Fender 4×10 Bassman amps as the greatest guitar amp ever. The first 1954 Fender Tweed 5D6 4×10 circuit generated further Tweed Bassman amplifier development through 1960. Several Bassman models were progressively influenced by the 5D6 through the last Fender Tweed 5F6-A Bassman's circuit design. The 5F6-A Bassman's design was directly copied by Marshall Amplifiers within their JTM-45 amplifier during the early 1960s.[8]

In 1990, Fender began reissuing the 5F6-A Bassman. The first series of the reissue were made at the Corona, California facility, and came equipped with four Eminence-made 10' blue frame AlNiCo speakers, and a solid state rectifier unit. Later on, production was moved to Ensenada, Baja California, and the model name was altered to '59 Bassman LTD'. The LTD came equipped with the original 5AR4 rectifier tube, and four Jensen P10R reissue alnico speakers, which was period correct for the original amp.

Piggyback model[edit]

In late 1960, Fender introduced a completely redesigned model 6G6 Bassman Amp, using the 'piggy-back' design, in which the amplifier chassis is housed in a small cabinet, attached by metal clips to a larger separate speaker enclosure.

The early models were called 'Brownface' because of the dark brown color used on the control panel. The 6G6 model was covered in rough Blonde colored Tolex material with Oxblood colored grill cloth. It had a single GZ34 rectifier, two 5881/6L6GC power tubes and four 12AX7 preamp tubes. The output was 50 watts at 8 ohm into a single 12 inch speaker, with a 'Tone Ring' baffle in the speaker cabinet. In early 1961, model 6G6-A was introduced with a solid state rectifier replacing the GZ34, and two 12 inch speakers with a conventional baffle in a slightly larger cabinet (wired in parallel) with a 4 ohm output. In 1962, model 6G6-B was introduced, which incorporated circuit changes but used the same speaker configuration. In 1963 smooth Blonde Tolex covering was used instead of the early rough texture cover, and a light tan grill cloth. In late, 1963, Fender changed the cosmetics to what is commonly known as the 'blackface' scheme. This amp still had the presence knob and same circuit (designated 6G6-B) as the smooth Blonde Tolex Bassman, but the faceplace was now black, the Tolex was black, and the grillcloth had moved to a silver cloth with black thread. The logo had also transitioned from the flat cast tin Fender with the brown paint in the tail, to a plastic logo with faux chrome and more 3-D shape.

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In 1964 Fender introduced the AA864 circuit, and changed the appearance to the 'Blackface' design, with black tolex covering and a black painted control panel. Fender was sold to CBS in 1965, and the AA165 circuit was briefly introduced, before being replaced by the AB165 circuit. The 'Blackface' design continued until the 'Silverface' model was introduced in mid 1967.[9] Early 'Drip-Edge' Silverface Bassmans made in mid 1967 used the same AB165 circuitry as the previous Blackface versions. The Brownface, Blackface, and Silverface 'piggyback head' (except the Bassman 10 and 20, which were also combo amplifiers) versions of the 1960s, 1970s, and early 1980s generally followed a trend toward cleaner sound and more headroom.

Solid state Fender Bassman[edit]

In 2000, Fender introduced a range of solid-state Fender Bassman combos, the Bassman 25, 60, and 200.[10] These were joined by the Bassman 100 combo and the tube powered Bassman 300 head in 2002.[10] In 2005 all the solid state combos were replaced with much smaller and lighter, and more powerful models, the Bassman 100, 150, and 250. The Bassman 250 was available with two speaker combinations or as a head only.[10] These solid state Bassman amps were discontinued in 2010, however the tube Bassman 300 continued on until 2013.[10]

Hybrid Bassman TV[edit]

In 2009,[10] Fender introduced the hybrid Fender Bassman TV series with a tube pre-amp and solid state power amp.[11] These were available as the Ten (150W 10' combo), Twelve (150W 12' combo), Fifteen (350W 15' combo), and the Duo Ten (350W 2 x 10' combo).[11]

Other models[edit]

  • Super Bassman (1969–1971) – one speaker cabinet
  • Super Bassman II (1969–1972) – two speaker cabinets
  • Bassman 10 (1972–1982) – Silverface combo – four 10' speakers, 50 Watts/RMS (models produced after 1977 came with a three-band EQ on the Bass channel and 75 Watts/RMS with ultra-linear output section).
  • Bassman 50 (1972–1977) – Silverface piggyback head – two 15' speakers, 50 Watts/RMS – Same specs as the original silverface Bassman heads produced between 1968 and 1972, except for the addition of a tailless amp decal and an AC568 circuit.
  • Bassman 100 (1972–1977) – Silverface piggyback head – four 12' speakers, 100 Watts/RMS.
  • Bassman 135 (1978–1983) – Silverface piggyback head – Same as the Bassman 100, with 135 Watts/RMS, ultra-linear output section and a three band EQ on the Bass channel.
  • Bassman 70 (1977–1983) – Silverface piggyback head – Same as the Bassman 50, with 70 Watts/RMS, ultra-linear output section and a master volume control.
  • Bassman 20 (1982–1983)[10] – Blackface combo – one 15' speaker
  • '59 Bassman (1990–2003) – 5F6-A reissue[12]
  • '59 Bassman LTD (Vintage Reissue Series) (2004–present) – 5F6-A reissue
  • Bassman 25 (2000–2005)[10] – one 10' speaker, 25 Watts/RMS solid state.[10]
  • Bassman 60 (2000–2005)[10] – one 12' speaker, one horn, 60 Watts/RMS solid state.[10]
  • Bassman 200 (2000–2005)[10] – one 15' speaker, one compression driver, 200 Watts/RMS solid state.[10]
  • Bassman 100 (2002–2005)[10] – one 15' speaker, one piezo horn, 100 Watts/RMS solid-state.[10]
  • Bassman 100 (2005–2010)[10] – one 10' speaker, one piezo horn, 100 Watts/RMS solid-state.[10]
  • Bassman 150 (2005–2010)[10] – one 12' speaker, one piezo horn, 150 Watts/RMS solid-state.[10]
  • Bassman 250 (2005–2010)[10] – one 15' speaker, or two 10' speakers, or head only, 250Watts/RMS solid state.[10]
  • Bassman 300 (2002–2013)[10] – head only, 300W tube, for use with Bassman 410 or 215 cabinets.[10]
  • Bassman 400 (200?–) – two 10' and one horn, or head only(400H), 350 Watts/RMS at 4 Ohms, solid state.[10]
  • Bassman 1200 (200?–) – head only, 1200 Watts at 2 Ohms, 800 Watts at 4 Ohms, solid state.[10]


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  1. ^ ab'Fender Wide Panel Tweed Bassman'. Ampwares.
  2. ^Wheeler 2007, p. 164.
  3. ^
  4. ^
  5. ^ abWare, Mark. 'Fender Amp Field Guide'.
  6. ^Gagliano, Greg (April 2010). 'Dating Fender Amps by Serial Number, Part VI'. Vintage Guitar Magazine: 38–39, 100–101.
  7. ^
  8. ^Kuehnel, Richard (2009). Circuit Analysis of a Legendary Tube Amplifier The Fender Bassman 5F6-A. Pentode Press. pp. 12–15. ISBN0976982250.
  9. ^
  10. ^ abcdefghijklmnopqrstuvwxFender. 'Fender® Bass Amplifiers and Speaker Enclosure Owner's Manuals (Archive)', Fender Website. Retrieved on 31 July 2019.
  11. ^ abFender. 'Fender Bassman TV Panel Manual'. Retrieved on 31 July 2019.
  12. ^


  • Kelly, Martin; Foster, Terry; Kelly, Paul (2010). Fender: The Golden Age 1946–1970. London & New York: Cassell. ISBN1-84403-666-9.CS1 maint: ref=harv (link)
  • Wheeler, Tom (2007). The Soul of Tone. Milwaukee: Hal Leonard. ISBN978-0-634-05613-0.CS1 maint: ref=harv (link)
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