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Post subject: Help Dating Dual Showman Reverb
Posted: Tue Dec 30, 2014 4:46 pm
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Hello, I have a Dualshowman Reverb TFL 5000d

The serial number is 0472 without a letter in front. I need help dating the amp. Thanks Avery


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Post subject: Re: Help Dating Dual Showman Reverb
Posted: Tue Dec 30, 2014 5:02 pm
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Need more number . transformer numbers ;

http://vintagefenderamprepair.com/schem ... -your-amp/

_________________________________________
http://www.ggjaguar.com/fendamp6.htm

Do you have a silverface Twin Reverb Amp or Dual Showman Reverb Amp with the serial number A23373? A lot of people do and here’s a plausible explanation based on the evidence. Sometime in 1970, Fender ordered a bunch of Twin Reverb/Dual Showman Reverb chasses from their supplier. The machine that stamped the serial number into the back of the chassis got stuck on number A23373 and a lot of pieces were stamped with this number. It would have been very costly to destroy these units so two remedies were implemented. First, a foil sticker containing a 4-digit serial number was affixed to the chassis over the A23373. Unfortunately, these often peeled off or were removed by the amp’s owner thus revealing the A23373 number. The second thing that was done was the addition of another number stamped into the chassis as a suffix to the A23373 serial number, e.g. A23373-155.

So how many of these chasses were made? Well, for the 4-digit serials affixed on a foil sticker, numbers as low as 0127 and has high as 3765 have been observed. Assuming they were all used sequentially and starting at 0100, there would be around 3700 non-master volume silverface Twin Reverbs and Dual Showman Reverbs out there. The amps that received the stamped suffix must also be added to this sub-total. The lowest suffix observed to date is A23373-39 and the highest is A23379-2916. Assuming the suffixes started with -01 and went to -3000, there would be around 3000 of these floating around. Of course, this is all hypothetical, but still plausible.

In addition to A23373, it appears the stamping machine stuck on serial number A23378 as four distinct amps with this number has been reported. Could it be the machine also got stuck on A23374, -75, -76, and -77? These have not been observed or reported so the answer remains unknown.


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Post subject: Re: Help Dating Dual Showman Reverb
Posted: Tue Dec 30, 2014 5:08 pm
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Where is the transformer number located at?


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Post subject: Re: Help Dating Dual Showman Reverb
Posted: Tue Dec 30, 2014 5:26 pm
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J 022756
606013


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Post subject: Re: Help Dating Dual Showman Reverb
Posted: Tue Dec 30, 2014 10:49 pm
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J022756 = power transformer, Fender part number (Dual Showman Reverb). Circuit AA270. Not sure what "J" means.



606013 = Schumacher (606). Made 1970, 13th week.


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Post subject: Re: Help Dating Dual Showman Reverb
Posted: Wed Dec 31, 2014 2:40 am
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All the Fender Dual Showman Reverb Amp serial numbers begin with a letter, either A ('68 - '75) or B ('75 - '76) followed by 5 digits. The serial number you gave - 0472 lacks the letter and one digit.

This could be caused by a bad stamping on the chassis.

But, if we look at the range of serial #s for this amp, the only year that could accommodate a serial # XX0472 (assuming the missing characters the 1st & 2nd) is:

A16500 to A22400 - 1969

Source: Fender Amp Serial Numbers

Hope this helps.

cheers!

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Post subject: Re: Help Dating Dual Showman Reverb
Posted: Wed Dec 31, 2014 2:43 am
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BMW2002Tii wrote:
J022756 = power transformer, Fender part number (Dual Showman Reverb). Circuit AA270. Not sure what "J" means.



606013 = Schumacher (606). Made 1970, 13th week.


+1

avmeyer , some other amp's part could be one year earlier or later or more, we see that often.

Chassis number 0472
could be B0 0472 = 1975
There is no A0

http://www.ggjaguar.com/fendamp6.htm


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Post subject: Re: Help Dating Dual Showman Reverb
Posted: Wed Dec 31, 2014 10:37 am
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stratele52 wrote:
avmeyer , some other amp's part could be one year earlier or later or more, we see that often.

Chassis number 0472
could be B0 0472 = 1975
There is no A0

http://www.ggjaguar.com/fendamp6.htm


Sorry, but it couldn't be a 1975.

The serial #s for 1975 are:

B01000 to B15000 - 1975
B15000 to B68000 - 1976

There is no 1975 serial # sequence for the Dual Showman Reverb - B00.

Looking through the full spectrum of serial #s for all model years, there is only one year that would allow a sequence X (in this case 'A') X (in this case a '2') 0472, and that's 1969 - A20472.

cheers!

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'11 FSR Am. Vtg. Ltd. Ed. CAR '57 Stratocaster (SN# LE02639)
'14 American Deluxe Ash Stratocaster
'12 Telebration Empress Telecaster
'99 Deluxe Nashville Telecaster
'12 FSR Telecaster HH
'10 Heritage H-535
'99 Martin DC-1E
'13 Lanikai Tenor Ukulele


Last edited by Lightnin MN on Sat Jan 03, 2015 12:07 pm, edited 1 time in total.

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Post subject: Re: Help Dating Dual Showman Reverb
Posted: Wed Dec 31, 2014 11:43 am
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You are right lightnin Mn.

Sorry ,


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