JohnFender
TDPRI Member
does anyone know who they are or if they're still alive?
What name is stamped on your amp?
What name is stamped on your amp?
J. Castillo and D. Ledferd are all over the early to mid 70s amps. I did some looking in to this a few months ago, and found a forum thread from a few years ago that said that D. Ledferd was still alive and that he found it interesting that people who saw his names on the old amps had been looking him up.
Interestingly enough, the pre-CBS amps 63-64, often had initials like "W.N" and "AD" stamped on them inside.
Iirc, D. Ledford was a quality control inspector. I personally have never seen a BF amp with a signature or a stamp of an assembler. It was common in the tweed years…name on a piece of masking tape, but those are the only amps I can recall having seen with an assembler’s name.
Also, this is the first time I have heard or read of anyone wondering about those stamped names in BF/SF amps…probably because everyone knows that those were inspection stamps…..
The 71 twin I had a lighthearted dig at yesterday in another thread here specifically says:
chassis wiring
m torres
Oct 11 1971
Not sure if I am referring to the correct Duane Ledford, but Duane who was American and lived in Sydney, and built amps never ever stamped his amplifiers, he always signed them.Iirc, D. Ledford was a quality control inspector. I personally have never seen a BF amp with a signature or a stamp of an assembler. It was common in the tweed years…name on a piece of masking tape, but those are the only amps I can recall having seen with an assembler’s name.
Also, this is the first time I have heard or read of anyone wondering about those stamped names in BF/SF amps…probably because everyone knows that those were inspection stamps…..
That tube chart has a two letter date code stamp…’OJ’. That amp was built in October, 1965.1969 Super Reverb: nope
Also, I got this from a very good source: The little tube chart thing? Just disregard it. It has about as much chance of being correct as being incorrect. If yours is right - it's practically a coincidence. Sometimes they would use the wrong stickers just to use up the stickers they had on hand.
View attachment 1375977
That tube chart has a two letter date code stamp…’OJ’. That amp was built in October, 1965.
I learned to date amps by component EIA codes. These dates will date the amp as well as confirm or disprove originality of major components. It is very rare to have a date stamp of a tube chart chart conflict with EIA codes ime. One time period will exhibit problems. They would be the first month of 1966 when someone failed to roll the first letter on the stamp forward from the ‘O’ to the ‘P’. This is noted in the ‘Dating Fender Amps’ articles, and I have witnessed such a tube chart in a January, 1966 pro Reverb. It was stamped ‘OA’ and had the ‘P’ correction made at the factory in just the manner that the article shows the correction.This is exactly where they are extremely inaccurate. For dating the amp, but feel free to go by it, a LOT of people don't know any better.