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#421
02-19-2009, 03:12 PM
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hi guys,
just want to be sure that these cone codes look legit the chassis code is 01LA looks like the model is T1221   thanks! Edit: ok so search didn't help me,but reading past page two did :P So it looks like these are real Pulsonic cones then if my understanding is correct O1LA is january 1st 1966 right? any idea what the four of these from my basketweave are worth? Last edited by Mr Benn; 02-19-2009 at 03:30 PM. 
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#422
02-22-2009, 01:53 PM
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Post deleted
Last edited by paul525715; 04-05-2009 at 01:01 AM.
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#423
02-26-2009, 11:15 AM
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Hey guys... hoping to get some help figuring out what the specs are on my old Greenbacks:
Codes: 34 102 014 T1511 02MA (if I am correct this = 1968?) Also, any idea on what they're worth? Thanks in advance! Last edited by Trotter; 02-26-2009 at 03:01 PM.
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#424
03-09-2009, 06:24 AM
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Celestion Speaker ID
Hi guys
been reading this thread with interest especially after removing 4 speakers from my old 1970's Hiwatt 4x12 cab at the weekend. The speakers are Rola Cestion 30w 16ohm 75c/s made in Ipswich. I can't make out of they're T1212 or T1217. Just wondered what the age and value is of these. Are they guitar spkrs or PA? Is there any difference? They sounded great in my Hiwatt cab for 12 yrs :AOK I can't post pictures yet unfortunately. Cheers Rob
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#425
03-12-2009, 03:48 PM
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HI
I'm in Ireland and a mate told me about your expertise as I've just found what I think is a pre-rola greenback lying in a shed !! Here's some pics    I've tried wading through your wealth of information at the start of the thread but got lost quickly.. I tested the terminals with a multimeter but didn't get any reading, although both leads to the cone look OK. My mate Declan (you probably know him) said all may not be lost - cone looks fine apart from dust and cobwebs... Help!! I'd really like to get this going for my Blackstar Artisan 15 head so any help greatly appreciated. Thanks Kieran
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#426
03-12-2009, 05:13 PM
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That's a 55hz G12M with the Pulsonic 102 014 cone, made June 10th, 1970. It's worth a good chunk of money.
However, it's time to check the lead wires to make sure they're hooked up to the cone AND the hooks on the speaker tab. If it is and you still get no reading on the multimeter then you've probably got a shorted voice coil and it's time to recone it. Sorry.
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#427
03-13-2009, 07:37 AM
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Many thanks for that information & for taking the time out to reply- When you say it's worth a chunk of money could you give me a ball park figure?
Anyways I'll be checking the speaker out in detail next week so i'll let you know how I get on... I'd really like to salvage it (for usage not onward sale) but living in Ireland I'm guessing there aren't any specialists re-coning speakers based locally - could you recommend any Ireland/UK based companies? Or could I contact Celestion? Dyin to breathe some low(ish) wattage valves through this thing to see what it sounds like! Cheers Kieran
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#428
03-13-2009, 08:42 AM
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It's value is in the $300-400 USD range BUT ONLY WITH THE ORIGINAL CONE IF IT HAS NO ISSUES.
If you recone it, it's a $100-125 USD speaker, if that. The tone & the value is in the cone, not the magnet, label, frame or anything else.
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#430
03-13-2009, 08:46 PM
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Quote:
Check back with me in another 5 years, I'll probably know a bunch more. 
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#431
03-17-2009, 01:02 PM
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Why does this cab sound dark?
This is a local made 2x12 cab loaded with two old Celestions.
The cab sounds dark and therefore never gets much use. This thread sparked my interest to open up the cab and this is what I found: Two G12H 30, T1281 speakers with cones marked 4. Foam lining sides and back of cab. Cab is 10 1/2 inches thick. My question is: Which factors contribute to a dark sounding cab? I've read earlier in the thread that these speakers have bass cones.     BTW These speakers came to me 5 years ago when I purchased a $100 homemade 4x12 that weighed a ton. The speakers inside were a matched quad. I wish I still had the other two speakers!
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#432
03-17-2009, 07:04 PM
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They shouldn't sound that dark...those "4" cones are 55hz bass cones, but the G12H models had some treble to them. Sounds like they might have been hit with too much power and got hurt so they don't sound like they're supposed to.
Here are some clips of an old G12H30 55hz like yours. Maybe this will help you decide if they're still good. Do they sound like this with a Les Paul/Marshall setup? http://southbayampworks.com/stf/22scumclip.mp3 = 22-G12H30-55hz-PreRola-Marshall-LP.mp3 Strat/65 Amps London http://southbayampworks.com/stf/06scumclip.mp3 = 06-G12H30-55hz-PreRola-65Amp-Strat.mp3 Les Paul/65 Amps London http://southbayampworks.com/stf/19scumclip.mp3 = 19-G12H30-55hz-PreRola-65Amp-LP.mp3
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#433
03-17-2009, 07:21 PM
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Thanks a bunch for the clip. I'm going to pull the foam in the cab and compare it to my 4x12 (T1221, 25w, lead greenbacks) tonight.
I wonder if two G12H30 speakers can handle a 50w Marshall output. I think the Bluesbreaker combos in the late 60s contained two 20w or 25w speakers. I use a 50 watt Marshall and a UA attenuator. I'm never in a position to play it full volume, no attenuator. Maybe two 65 watt speakers would be better?
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#434
03-18-2009, 07:39 AM
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Gold Foil, check your email. I sent you some information there, rather than post on this thread.
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#435
04-13-2009, 07:38 AM
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Bump for a good thread.
I just discovered Vintage 30s came with different cones, 1777 with large dust caps and 444 cones with small dust caps ......  I wonder what the first year the Vintage 30 was, what they were modeled after and the tone they were after?
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... Last edited by Dr. Tweedbucket; 04-13-2009 at 07:59 AM.
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