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webcor model 1138-1 Concerto
by fixinmyphono on Thu Sep 29, 2011 5:28 pm
Anyone have any info on a webcor model 1138-1? Thanks Doug
Last edited by fixinmyphono on Sat Oct 08, 2011 8:53 pm; edited 1 time in total
fixinmyphono- Senior Member
- Number of posts: 89
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Location: Levittown New york
Registration date: 2011-09-13
fixinmyphono- Senior Member
- Number of posts: 89
Age: 51
Location: Levittown New york
Registration date: 2011-09-13
Re: webcor model 1138-1 Concerto
by fixinmyphono on Sat Oct 08, 2011 8:59 pm
Looked at the amplifier on it today should be an ok fix with caps and resistors.Has 3 speakers so Im thinkin its stereo. I've never heard of the concerto model.Cant find anything on it no adds or photos at all.The wood is ok but has some flaws inside.Should be able to fix it up in time. More pics tomorrow....Doug
fixinmyphono- Senior Member
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Re: webcor model 1138-1 Concerto
by Resistance is Futile on Sat Oct 08, 2011 9:46 pm
Newspaper of 1955 says model is Hi Fi (so its not a stereo) the turntable tone arm is to heavy also. Two or three Speakers were a selling point for HI FI sets.
Last edited by Resistance is Futile on Sat Oct 08, 2011 10:10 pm; edited 1 time in total
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Re: webcor model 1138-1 Concerto
by fixinmyphono on Sat Oct 08, 2011 9:50 pm
Ah ok thanks for the info I cant even find a picture of it. Doug
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Re: webcor model 1138-1 Concerto
by Resistance is Futile on Sat Oct 08, 2011 10:13 pm
Sams schematic set 356 folder 17
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fixinmyphono- Senior Member
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Re: webcor model 1138-1 Concerto
by fixinmyphono on Sun Oct 09, 2011 1:44 pm
Ok question time this big capacitor reads.4mfd 25 wdc Is it paper or electro? Thanks Doug
fixinmyphono- Senior Member
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Re: webcor model 1138-1 Concerto
by fixinmyphono on Sun Oct 09, 2011 1:51 pm
Another question Im not sure what this one is the colors are silver yellow yellow red blue or the reverse? What olms is it and it is a resistor right? Forgive my not knowing ty Doug
Last edited by fixinmyphono on Sun Oct 09, 2011 1:58 pm; edited 1 time in total
fixinmyphono- Senior Member
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Re: webcor model 1138-1 Concerto
by fixinmyphono on Sun Oct 09, 2011 1:55 pm
Yet another question this one though hard to see I think is a .05 400 volt cap but im not sure just at the end of the blue wire and beneath it Ty Doug 
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Re: webcor model 1138-1 Concerto
by Resistance is Futile on Sun Oct 09, 2011 2:16 pm
Posting the schematic would help to reference things.
Setting that aside, Top Picture-usually low voltage caps are paper as they are used in the signal paths. If it is paper then the line around the cap indicates the outer foil side and usually is for shielding from noise, otherwise if its a electrolytic it indicates polarity. What does it connect to?
The bottom picture - looks like what is called a bumble bee cap, they are notorious for going bad and should be replaced.
The one in the second picture looks like a cap, but could be a dog-bone cap. Remove one lead from circuit and measure, if no reading on the ohms scales, its a cap, (or an open resistor.)
Usually Caps of that type are hollow while resistors are solid.
Setting that aside, Top Picture-usually low voltage caps are paper as they are used in the signal paths. If it is paper then the line around the cap indicates the outer foil side and usually is for shielding from noise, otherwise if its a electrolytic it indicates polarity. What does it connect to?
The bottom picture - looks like what is called a bumble bee cap, they are notorious for going bad and should be replaced.
The one in the second picture looks like a cap, but could be a dog-bone cap. Remove one lead from circuit and measure, if no reading on the ohms scales, its a cap, (or an open resistor.)
Usually Caps of that type are hollow while resistors are solid.
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Re: webcor model 1138-1 Concerto
by fixinmyphono on Sun Oct 09, 2011 3:20 pm
The one in the top photo goes between speakers and is hard to read could only make out .4 mfd 25 wdc
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Re: webcor model 1138-1 Concerto
by fixinmyphono on Sun Oct 09, 2011 6:25 pm
fixinmyphono wrote:Ok question time this big capacitor reads.4mfd 25 wdc Is it paper or electro?It also says outside capacitor and has a black band around the one end. Thanks Doug
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Re: webcor model 1138-1 Concerto
by Bill Cahill on Mon Oct 10, 2011 9:19 am
That's a paper tone cap on speakers. I'd replace it. .39, or, .47 at 200volts is fine for this use.
Bill Cahill
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Re: webcor model 1138-1 Concerto
by willy3486 on Mon Oct 10, 2011 9:57 am
There is a good article on the color codes of caps and resistors at
http://www.vcomp.co.uk/components/components.htm
I printed it off to have on my workbench. I can do the resistors but I forget how to do the caps.
http://www.vcomp.co.uk/components/components.htm
I printed it off to have on my workbench. I can do the resistors but I forget how to do the caps.
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