{"product_id":"fender-vibrolux-model-5f11-tube-amplifier-1959-10250","title":"Fender Vibrolux Model 5F11 Tube Amplifier (1959)","description":"Fender Vibrolux Model 5F11 Model Tube Amplifier (1959), made in Fullerton, California, serial # F-01885, tweed fabric covering finish. \u003cbr\u003e\u003cbr\u003eThe 1950s tweed Fender Vibrolux marks a special debut in Fender history: the built in tremolo effect, introduced first in this model along with the larger Tremolux. Not to be confused with the later Tolex-clad 60's era descendant, the tweed Vibrolux 5F11 is a relatively compact combo amp with one 10\" Jensen speaker and a dual-6V6 power section putting out around 10 watts of power. The circuit is basically the same as its little brother, the 5F10 Harvard, with a tremolo feature added; on introduction in 1956 this was smallest Fender amp with built-in tremolo. Unlike the 6AT6\/6AV6 first stage found in the Harvard, the Vibrolux uses the dual-triode 12AX7, with the added half powering the tremolo. The rest of the circuit is virtually identical. \u003cbr\u003e\u003cbr\u003eAlso like the Harvard (and unlike many other contemporary Tweed models like the Deluxe) the Vibrolux is a fixed-bias amp, allowing it to have surprisingly high headroom and output volume for a dual 6V6 layout. This original Vibrolux was on the edge of the student\/professional grade amp dividing line in the 1950s but offers plenty of volume for most small gigging and recording situations today, with a tone that's hard to beat.\u003cbr\u003e \u003cbr\u003eHeight is 16 in. (40.6 cm.), 20 in. (50.8 cm.) width, and 9 1\/2 in. (24.1 cm.) in depth at deepest point. \u003cbr\u003e\u003cbr\u003eThis Vibrolux is a very nicely preserved original example. It has a tube chart stamp reading IC, indicating it was assembled in March 1959. Externally, the rather fragile tweed covering has some light general wear, including some minor amber staining on the top and sides. The faceplate is quite clean with virtually no loss to the screen printed graphics and only a few minor spots showing signs of corrosion. The original leather handle has been replaced with a high-grade reproduction made by Bob Brookwood of Brookwood Leather. \u003cbr\u003e\u003cbr\u003eElectrically, the amp is nicely original. The original 10\" Jensen P10R speaker has a stamped code 220-846, dating it to the 46th week of 1958. The baffle has historically had an offset speaker cutout in both the Vibrolux and Harvard models. This baffle is centered, however the baffle and grille cloth stapling look correct and to our best knowledge they're both original. Both the power and output transformers are the original Schumachers. The visible pot codes indicate manufacture in early 1959; there is one neatly replaced pot dated to late 1980. The amp chassis was lovingly wired up by Lily and bears her signature on a piece of masking tape; We think she made the best sounding of all Fender amps, but that may just be our superstition! The amp has received our routine maintenance, including replacement of all electrolytics, cleaning of all sockets, pots and jacks, a 3-prong power cord and biased to spec. \u003cbr\u003e\u003cbr\u003eThis is a great-sounding combo, newly re-invigorated with a real singing crunch to the tone when pushed. Another fine example of one of our favorite 1950s amps, ready to gig and\/or sing in the studio. Excellent - Condition.","brand":"Fender","offers":[{"title":"Default Title","offer_id":46853399183500,"sku":"10250","price":5650.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/8702\/3756\/files\/01_249787b6-70dd-4937-a155-142d2bb14b1e.jpg?v=1774337418","url":"https:\/\/retrofret.com\/products\/fender-vibrolux-model-5f11-tube-amplifier-1959-10250","provider":"RetroFret","version":"1.0","type":"link"}