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16th November 2008, 10:47 AM
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#1 |
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diyAudio Member
Join Date: Sep 2005
Location: the leafy west of Brisbane
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Identity of two vintage drivers?
On one small speaker it reads : 3D-2Aa
************************************************** ********* Cr-77 ************************************************** ********* Super Tweeter ************************************************** ********* IMP*** Japan * And on the mid/tweeter speaker it reads:* 0704Da ************************************************** ********* CR-90. 88 ************************************************** ********* Tweeter ************************************************** ********* IMP** Japan They are both alnico, with dark paper cones. They are part of a 3-way system. The woofer appears to not be alnico ... annular magnet Can anyone enlighten me? Who made them? Are they worth anything? Ta Doug
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A speaker-builder's parable: "That burned down, fell over, then sank into the swamp. But the fourth one stayed up. And that's what you're going to get, Lad, the strongest castle of all." |
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16th November 2008, 12:49 PM
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#2 |
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Magneto the Gravity Man
diyAudio Member
Join Date: Mar 2005
Location: A life on the ocean waves when I'm not at home in N. Wales (but I'm not Welsh so no sheep jokes!)
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Technics made a CR77 supertweeter system
Size 28x15x11 ins
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If it ain't broke, break it !! Then fix it again. It's called DIY ! |
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18th November 2008, 01:30 AM
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#3 |
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diyAudio Member
Join Date: Sep 2005
Location: the leafy west of Brisbane
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more info
They come from a speaker called a "Criterion 88".
I read on another forum that they may have been Lafayette. But the question remains: who manufactured these drivers? ??? Doug
__________________
A speaker-builder's parable: "That burned down, fell over, then sank into the swamp. But the fourth one stayed up. And that's what you're going to get, Lad, the strongest castle of all." |
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18th November 2008, 03:42 AM
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#4 | |
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frugal-phile(tm)
diyAudio Moderator
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Re: more info
Quote:
Which 8" wowfes did you get... ceramic or alnico? Ovals between the basket legs or 2 (>) sizes of circles? It makes a killer wide range in an OB. I'll have at least impedance curbes on these, and i have a (dead) super tweeter with the friont removed. dave
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community sites t-linespeakers.org, frugal-horn.com ........ commercial site planet10-HiFi p10-hifi forum here at diyA |
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