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Offline Ken BosakTopic starter
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« on: April 29, 2019, 07:12:32 pm »
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Howdy,

I was given a non-working 70's metal detector. The problem? No sound via either the speaker or headphones. I know a bit about electronics and have done what I can without a schematic (cleaned pots, replaced all electrolytic caps, cleaned connectors) but no joy.

There is a chance I can fix it if I could find a schematic. No luck finding one online so far. Anyone here have one?

Questions:

1. I read that this is a rebranded White's. I might have better luck finding a schematic if I knew which White's it was for the search. Does anyone know?

2. This was a pretty pricey model back in the day. Around $300 in 1975. Is this thing even worth me spending time on repairing? Are today's $300 metal detectors light years ahead of this thing?

Appreciate any advice.

Ken



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Offline GoldDigger1950
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« Reply #1 on: April 30, 2019, 12:14:12 am »
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How about you take a few minutes to introduce yourself to the membership here? I sympathize with your needs, having repaired my fair share of detectors. Even if we could help you right now, you need a minimum of 5 posts to use the download section.

For what it's worth, I don't believe that is a Whites detector. You could actually CALL them and ask. They're most helpful.

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It's all about that moment when metal that hasn't seen the light of day for generations frees itself from the soil and presents itself to me.
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« Reply #2 on: April 30, 2019, 11:13:31 am »
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   Whites did in fact make detectors for Sears for a while. 

What is the Model number ?

Say a Howdy in the New Comers thread, Eaaaaa? 

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Offline ArfieBoy
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« Reply #3 on: April 30, 2019, 11:36:28 am »
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Yep, they were made for Sears by White's.  That model used to have the White's manufacturing tag on them for a while.  I believe they were manufactured in the 1970's.  White's would be the place to find out about them.   By the way, welcome to the forum from Oregon.   Welcome

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« Reply #4 on: April 30, 2019, 06:11:16 pm »
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It looks a bit like a 4DB. Here is a link to the manual:   

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« Reply #5 on: May 01, 2019, 08:48:27 am »
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For some reasons that link goes no place for me.  I did find this one.
Out of the Piles and Piles of Whites Schematic I don't seem to have this one.
I do have the Basic Whites TR that may be of some us ?  Not much to it.

Don't work ?   Does it fire up ?  Not Tune ?  Just Dead Bug ?

I would start with the Basics like Battery connections and contacts.

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https://www.whiteselectronics.com/manual/coinmaster-4-db-tr-d/


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