Dating vintage jensen speakers

22-Mar-2016 11:36

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Properly identifying Carvin guitar amplifiers can be much trickier than identifying Carvin guitars and basses.

For starters, there is no serial number information currently available, from this site, or from Carvin directly.

Ampegs can be divided into six distinct groups for dating purposes: pre-1953, 1953 to mid-1965, early 1965 to 1969, 1969 to 1979, 1981 to 1984, and post-1984.

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.

So, unfortunately, having a serial number is of no benefit in identifying the year of a particular amp.

The best one can hope for is to narrow down a particular model to a range of years - but finding a specific year of a particular amp is just about impossible to do.

I pulled this information from Google's cache of the site.

From 1961-1965, this logo appeared on some amps and speaker cabinets, in addition to a plain block logo found on the control panel of the amp.

Starting in 1966, the "Curved C" logo (below right, top logo) began appearing on amps and speaker cabinets, in the form of a metal badge.

All-original except grounded plug (original gray cord included). Big brother of the tweed Harvard model, one of the most recorded amps in history. Here we have a vintage 1964 Ampeg M-15 "Big M" combo amp.

In excellent condition with the original footswitch, loaded with the original Jensen C15N, dating to the 36th week of 1963. Fender's top of the line piggyback amp, blackface AB763 circuit, 85 watts, 4x6L6, solid-state rectifier, 2 channels, tremolo, matching cabinet with JBL 1x15" loudspeaker, clean and original including tilt-back legs, sliding...

I pulled this information from Google's cache of the site.From 1961-1965, this logo appeared on some amps and speaker cabinets, in addition to a plain block logo found on the control panel of the amp.Starting in 1966, the "Curved C" logo (below right, top logo) began appearing on amps and speaker cabinets, in the form of a metal badge.All-original except grounded plug (original gray cord included). Big brother of the tweed Harvard model, one of the most recorded amps in history. Here we have a vintage 1964 Ampeg M-15 "Big M" combo amp.In excellent condition with the original footswitch, loaded with the original Jensen C15N, dating to the 36th week of 1963. Fender's top of the line piggyback amp, blackface AB763 circuit, 85 watts, 4x6L6, solid-state rectifier, 2 channels, tremolo, matching cabinet with JBL 1x15" loudspeaker, clean and original including tilt-back legs, sliding...With settings at 5-6 its tone is rich and sweet like a hi-fi tube... Speakers are recent Jensens, but the originals are boxed up and included, and will be shipped separately. Early '60s, JMI (Jennings Musical Industries) production, small student combo, 4 watts from a single EL84, ECC83/EF86 preamp, EZ80 tube rectifier, black vinyl, lovely brown Vox grille cloth, hinged handle, has added footswitch jack...