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progressoid

(49,992 posts) Mon Apr 4, 2016, 09:09 AM Apr 2016

Any electronics tinkerers out there? Need some help.

I have a pair of oldish Technics speakers - SB CR77. One of the tweeters is going out.

Since I can't afford new at this point, I'm thinking about just replacing the tweeters.

Here are the specs for the speakers

So I was thinking of getting something like this: http://www.parts-express.com/tymphany-h25tg05-08-1-titanium-dome-tweeter-with-waveguide-8-ohm--264-1381

????? Is this doable ?????

6 replies

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Any electronics tinkerers out there? Need some help. (Original Post) progressoid Apr 2016 OP

It's been a LOOOOONG timse since I dicked around with electronics OriginalGeek Apr 2016 #1

Yeah, I meant to say that I'll do both at once. progressoid Apr 2016 #2

you stand a good chance of ending up better than you started OriginalGeek Apr 2016 #3

Is there a crossover in there? hunter Apr 2016 #4

Excellent point mahatmakanejeeves Apr 2016 #5

You might be on to something. progressoid Apr 2016 #6

OriginalGeek

(12,132 posts)

1. It's been a LOOOOONG timse since I dicked around with electronics

Reply to progressoid (Original post)

Mon Apr 4, 2016, 10:50 AM

Apr 2016

and I mean decades..but I don't see why that wouldn't work HOWEVER, if it were me, I'd replace the tweeters in both speakers so they matched.

progressoid

(49,992 posts)

2. Yeah, I meant to say that I'll do both at once.

Reply to OriginalGeek (Reply #1)

Mon Apr 4, 2016, 11:22 AM

Apr 2016

Think I'll pull one out and snoop around in there during lunch. Also make sure the replacements would physically fit the opening. Might have to modify it. That's no big deal though.

OriginalGeek

(12,132 posts)

3. you stand a good chance of ending up better than you started

Reply to progressoid (Reply #2)

Mon Apr 4, 2016, 11:27 AM

Apr 2016

have fun!

hunter

(38,322 posts)

4. Is there a crossover in there?

Reply to progressoid (Original post)

Mon Apr 4, 2016, 01:15 PM

Apr 2016

The problem could be in that, not the tweeter itself, possibly a bad capacitor.

http://www.diyaudioandvideo.com/Tutorial/DesignBuildCrossover

mahatmakanejeeves

(57,567 posts)

5. Excellent point

Reply to hunter (Reply #4)

Mon Apr 4, 2016, 04:21 PM

Apr 2016

That happens a lot to '60s-vintage ARs and KLHs.

progressoid

(49,992 posts)

6. You might be on to something.

Reply to hunter (Reply #4)

Wed Apr 6, 2016, 05:14 PM

Apr 2016

I unplugged the tweeter and there is still a sort of distorted fuzzy sound. This might be out of my skill level.

At the very least it will have to wait until after tax time.

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