Please check the fields highlighted in red. His passing is a great loss to this research team and the Fender amp aficionado community in general. The amps that received the stamped suffix must also be added to this sub-total. The letter B was skipped, as were the letters I, O and Q since they might be confused for numbers. Here is a list of the first letter showing the year of manufacture.
- This is probably the biggest area of confusion when dating Marshall amps.
- This tube need not be low-noise or low-hum, nor does it need to be tested for microphony.
- The progress of this type of work is slow, hence the long hiatus, however, a lot of new data have been collected regarding Fender amplifiers, including production numbers.
This is no different with published dating tables for vintage Fender guitars and basses. The following charts are the revised dating tables for Fender tube amps. The serial number is one part of the puzzle when dating an amp, but cross-checking the originality of the different parts, including tubes, wiring, transformers, knobs, etc. The best estimate is that about of these were made before the circuit was revised. The machine that stamped the serial number into the back of the chassis got stuck on number A and a lot of pieces were stamped with this number.
Second tube is a driver stage for both channels of preamp, specified. This model uses solid-state rectifiers rather than tube rectifiers. Paul Linden has volunteered to fill in for Greg. This tube need not be especially quiet, dating but its heater-cathode insulation must be very good.
Advances have been made with regards to the production of tolex amps and it appears that much of this information can be applied to late s tweed amps as well. Fender had tremolo or vibrato on some amps. Marshall has always used Celestion speakers standard from the factory, and thankfully, Celestion has been very consistent in coding their speakers. The last two digits would refer to the week of the year i. Look for original black levant covering, a gray grille and the old block-style Marshall logo.
If the speakers in your Marshall cabinet or combo are original, they can provide another piece of evidence when determining the date of manufacture. Third tube is the Normal channel preamp. So how many of these chasses were made? The revisions were made based on data collected since the tables were initially published. Using the month and year codes below, and knowing what order they are in for different eras, you can easily decode a Celestion speaker's age.
How To Date A Marshall Amp
The additional date codes for this era are below. So long as one tube from each pair is on one side of the transformer, and the other is on the other side, the amp will balance. Fourth tube is the driver. For some reason, folks are willing to poke their head into tweed, blonde, brown and blackface amps, but not into silverface amps.
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- Good luck reading some of the hand written ones.
- These have not been observed or reported so the answer remains unknown.
- If the heater shorts to a cathode in this tube, the amp will not work properly.
- During this four year stretch, Celestion speaker codes followed a day-month-year format.
With all this information in mind, can you identify the following manufacturer and date of these source-date codes? Instead, there were approximately of these chasses produced, which then ended up as one of the three models in question. If three digits are present, lagu daftar the first digit would refer to the year i.
How to Identify the Date and Value of a Fender Amplifier
Amps from this era still have the block-style Marshall logo and a centered chassis. As a result, there are a lot of amps out there that may look original, but are not. Production has continued there uninterrupted through today, though some lower-priced models are now made in China, India or Korea, depending on the series. The Code on the tube chart of your Fender Amp is made up of two letters.
My Guitar Buddies
If you're about to put down a hefty sum on a vintage Marshall, we strongly encourage you to consult multiple sources to determine the exact age and originality of the amp. For better or worse, this concept is common to this endeavor. Marshall amplifiers made hard rock possible. See an experienced technician. This tube tends to wear out faster than the other preamp tubes.
This is the driver stage and gain makeup stage. Reissue amps also use stamped Date Codes. Getting the correct year is one thing, but getting the story behind an amp is the fun part.
Product Dating Fender
In addition to A, it appears the stamping machine stuck on serial number A as four distinct amps with this number has been reported. Sixth tube is the phase inverter and vibrato tube. Some things are very obvious such as non-original or reconed speakers, non-original transformers, replaced pots, re-tweed, re-tolex, re-grill, etc. These were almost always at the extreme left of the chassis, when looking at the rear of the amp.
Dating Your Fender Amp
All Fender amplifiers, manufactured after include a date code on the amplifier. The First letter equates to the Year and the Second letter to the Month. Currently, Celestion speaker codes follow a day-month-year format. Paul worked with Greg on their small box brown Twin myth busting research and is extremely knowledgeable about Fender amps in general with a specialization in the brown and blonde amps. Remember, matchmaking by your amp is newer than the newest component.
Andrew works in parallel with this research, but is specializing in the Rivera era blackface amps. Fourth tube is the phase inverter. The bottom line is to do your homework or enlist the aid of an expert. Bias should be adjusted when tubes are replaced.
Interest in vintage Fender amps really took hold about years ago. If it's a one-digit number you need to determine the correct decade of the amp some other way. Unfortunately, there is some sad news to report as well.
Here is another caveat about reading these tables. We understand that some technicians recommend Ei or Preferred Series for this duty. If you have absolutely no idea whether your Marshall is old or new, coventry dating a good place to start is the model name or series.