Home › Forums › Vintage EHX › How to date an Electro Harmonix Pedal.
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February 18, 2009 at 4:14 pm #77761PabloMember
Good Evenin’ from Ireland.
It’s a terrible thing when a great local band split;
but it is a brilliant thing when the guitarist of said band has a clearout of his equipment.
Let’s call said guitarist Dave from herein.Yesterday morning:
Dave calls to my house with a suitcase and a pedal board,
“I’m moving to Spain man,” says Dave,
“Cool” says me,
“Do you still have my copy of Fun House?” Asks Dave.
While I’m upstairs looking for his CD’s
he opens the pedal board on my coffee table,
I get back downstairs with a tonne of Dave’s CD’s only for him to say:
“I don’t need these anymore, they’re your’s.”A Big Muff Pi, A Holy Grail, A Small Clone and one Russian Small Stone.
What a gent.I’m just wondering how to go about finding out when they were made.
The Big Muff & Holy Grail came in original cardboard boxes,
The Small Clone came in a wooden one and the Small Clone was unboxed if this helps?P.S. In town this evening and got a nano metal muff for very next to nothing,
it ain’t my cup of tea but I just couldn’t say no, the EH bug is truly upon me.February 18, 2009 at 5:01 pm #93508tubezipperModeratorYou lucky lucky man.
February 18, 2009 at 5:08 pm #93509PabloMemberQuote:You lucky lucky man.Cheers
Just been on your myspace, top tunes :thumb:
we’re on myspace.com/theq42February 18, 2009 at 6:54 pm #93515electro-melxModeratorcan you post some pictures of the pedals?
February 18, 2009 at 9:33 pm #93531Ned FlandersModeratorIf they are made before and including the 80’s, before EHX went out of business then you just need to tell me the codes on the back of the pots, they will begin with 137. If they are modern re issues you can t date them. I know some of them are re issues but the big muff and small clone might be 80’s.
February 18, 2009 at 10:10 pm #93535nightravenMemberuh be nice around them but watch you don’t act to much like a friend around them otherwise they won’t be interested in you!
lol…
check the pots, and maybe there’s info on the PCBs?
February 18, 2009 at 11:03 pm #93537JordanLikesToRockMemberEvery time anyone has ever asked how to date a pedal someone always has to use that joke… :facepalm:
February 18, 2009 at 11:09 pm #93538nightravenMemberpeople should start to phrase it properly!
:p
February 19, 2009 at 3:20 am #93560PabloMemberCheers Guys, really appreciate it,
I’m gonna check the pots and such tomorrow,Haha! Yeah I was gonna say take them out to dinner or the movies,
it’s an odd thing to phrase ain’t it?Talk soon,
Pablo.February 19, 2009 at 3:50 pm #93594tubezipperModeratorQuote:Quote:You lucky lucky man.Cheers
Just been on your myspace, top tunes :thumb:
we’re on myspace.com/theq42thanks alot
February 21, 2009 at 5:23 pm #93768KitraeMemberThe vintage USA Big Muffs, and other EH pedals, all have codes stamped on the underside of the CTS (Chicago Telephone Supply) brand potentiometer cans, or “pots”. The pots are what the knobs are mounted to. The first three numbers are a code identifying the manufacturer as CTS (each electronics manufacturer was assigned a code), the next two numbers are the year, and the last two numbers are the week of the year they were made. So a pot stamped 1377833 was made in the 33rd week of 1978. Note that this does not mean a pedal with a 1978 pot was actually made in 1978, it just means it was not made any earlier than 1978. The pedal could have been made months or even a year or more after the pots were purchased as it is rumored that Electro-Harmonix bought the pots in bulk. CTS may have stamped the pots in large runs also, so they could have shipped pots dated earlier than the year Electro-Harmonix ordered them. That’s why you see some Triangle Muffs with pots dated 1966. E-H did not exist until 1968. The pots on the newer USA made pedals from around 1999 and on do not have date codes. The Russian made pedals I own also lack date codes on the pots.
February 26, 2009 at 11:33 am #93972WatsonWoodMemberQuote:If they are made before and including the 80’s, before EHX went out of business then you just need to tell me the codes on the back of the pots, they will begin with 137. If they are modern re issues you can t date them. I know some of them are re issues but the big muff and small clone might be 80’s.I have a number of ’70s and ’80s EHX pedals. Is there a sequence to the 137… pot code which makes it possible to date the pedals?
Thanks
February 26, 2009 at 1:18 pm #93974KitraeMemberUmmm…I just gave it, above.
February 26, 2009 at 1:50 pm #93976WatsonWoodMemberOoops! Sorry Kit. But I did learn to read at school! Appreciated!!
May 28, 2009 at 10:38 am #97082sekovaMemberI just bought a Deluxe Memory Man from a guy, who told me this is a 70’s pedal. However when I got it I was disapointed at first, because the colored field on the pedal was black, and I thougt all the old ones had blue color. The one I bought looks just like the modern dmm’s. I checked the pots, and the codes start with 1377 (can’t see the rest without taking out the circuit board). So apparently it is an old one, but I’m wondering when they began making the “black” chassis, and if there is any difference in sound quality between the blue and the black colored pedals.
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