Re-capped a radio.....hissing sound

10/28/2008 3:26:22 AMG.Berg

Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS

10/28/2008 6:31:20 PMAnton

:Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS

Are you sure you don't have any dry joints in your decoupling capacitors?

10/28/2008 7:06:15 PMG. Berg

::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
:
:Are you sure you don't have any dry joints in your decoupling capacitors?

10/28/2008 7:07:06 PMG. Berg

Dry joints?? decoupling capacitors?? Sorry fairly new to this not sure what u mean....

:::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
::
::Are you sure you don't have any dry joints in your decoupling capacitors?

10/28/2008 7:42:10 PMSanta

For Christmas I'll be bringing you a nice shiny book by Marcus & Levy called "Elements of Radio Servicing". After you read it you will hopefully understand how a radio works and then you won't have to do "shotgun" repairs where you replace every capacitor and twiddle every adjustment hoping it will make the radio work.

:Dry joints?? decoupling capacitors?? Sorry fairly new to this not sure what u mean....
:
:
::::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
:::
:::Are you sure you don't have any dry joints in your decoupling capacitors?

10/28/2008 8:12:17 PMGrinch

Let's play nice fellas

:For Christmas I'll be bringing you a nice shiny book by Marcus & Levy called "Elements of Radio Servicing". After you read it you will hopefully understand how a radio works and then you won't have to do "shotgun" repairs where you replace every capacitor and twiddle every adjustment hoping it will make the radio work.
:
::Dry joints?? decoupling capacitors?? Sorry fairly new to this not sure what u mean....
::
::
:::::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
::::
::::Are you sure you don't have any dry joints in your decoupling capacitors?

10/28/2008 8:15:48 PMPeter G. Balazsy

Mr. Berg:
I agree that a beginner's Basic Radio manual is a good idea, ....especially for you.... since you seem to really need it.
For a nice short-cut..You can go here:
http://www.angelfire.com/electronic/funwithtubes/
... and scroll to the lower part of the page and READ the 5 chapters on the All American Five.
It's a quick read you will never regret!

As far as your "hiss" problem and the suggestions given:
.. I'm sure he's referring to "cold" solder joints at C-7 or C-5 which are RF bypass caps. They are supposed to remove and residual RF from the (IF) carrier prior to audio amplification.
If you haven't replaced them you might want to. They are usually Mica caps and don't typically fail.. but they can fail and are cheap to replace.

:For Christmas I'll be bringing you a nice shiny book by Marcus & Levy called "Elements of Radio Servicing". After you read it you will hopefully understand how a radio works and then you won't have to do "shotgun" repairs where you replace every capacitor and twiddle every adjustment hoping it will make the radio work.
:
::Dry joints?? decoupling capacitors?? Sorry fairly new to this not sure what u mean....
::
::
:::::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
::::
::::Are you sure you don't have any dry joints in your decoupling capacitors?

10/28/2008 9:27:59 PMMike

:For Christmas I'll be bringing you a nice shiny book by Marcus & Levy called "Elements of Radio Servicing". After you read it you will hopefully understand how a radio works and then you won't have to do "shotgun" repairs where you replace every capacitor and twiddle every adjustment hoping it will make the radio work.
:
::Dry joints?? decoupling capacitors?? Sorry fairly new to this not sure what u mean....
::
::
:::::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
::::
::::Are you sure you don't have any dry joints in your decoupling capacitors?

No justification whatsoever for such a response. If we were all pros instead of hobbyists there would be a lot fewer of us that come to this site for wisdom. I don't think anyone expects sarcasm as a response. There have been a couple of postings and responses lately that do not do this site the respect that it rightly deserves. Enough said!

10/29/2008 1:24:39 AMG. Berg..Thanks for the help

FOR THOSE WHO GIVE, and have given HELPFUL INFORMATION AND WANT TO SHARE KNOWLEDGE...I thank you. I do not believe that everyone here is an expert. I am one person who is learning and am VERY thankful for those who prefer to help rather than knock people down. Through this site, I have gained much and am very grateful to those who are interested in sharing knowledge...I believe I am not alone when I say...If you prefer to be sarcastic or other..kepp it to yourself...

::For Christmas I'll be bringing you a nice shiny book by Marcus & Levy called "Elements of Radio Servicing". After you read it you will hopefully understand how a radio works and then you won't have to do "shotgun" repairs where you replace every capacitor and twiddle every adjustment hoping it will make the radio work.
::
:::Dry joints?? decoupling capacitors?? Sorry fairly new to this not sure what u mean....
:::
:::
::::::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
:::::
:::::Are you sure you don't have any dry joints in your decoupling capacitors?
:
:
:No justification whatsoever for such a response. If we were all pros instead of hobbyists there would be a lot fewer of us that come to this site for wisdom. I don't think anyone expects sarcasm as a response. There have been a couple of postings and responses lately that do not do this site the respect that it rightly deserves. Enough said!

10/29/2008 7:06:08 AMchange

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We need a change

10/29/2008 2:56:17 PMGET THIS SHIT OFF HERE

EXCUSE MY LANGUAGE IF IT OFFENDS THOSE WHO USE THIS SITE IN THE RIGHT MANNER.... THIS SITE IS NOT ...NOT...NOT A POLITICAL FORUM....

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10/29/2008 3:22:30 PMBill of Rights

Since this is a public forum, isn't the poster guaranteed to be able to express themselves based on the First Amendment?

:EXCUSE MY LANGUAGE IF IT OFFENDS THOSE WHO USE THIS SITE IN THE RIGHT MANNER.... THIS SITE IS NOT ...NOT...NOT A POLITICAL FORUM....
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10/30/2008 4:09:32 PMboo!

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10/30/2008 4:13:38 PMyou meant

10/30/2008 2:13:11 PMShane Franz

:For Christmas I'll be bringing you a nice shiny book by Marcus & Levy called "Elements of Radio Servicing". After you read it you will hopefully understand how a radio works and then you won't have to do "shotgun" repairs where you replace every capacitor and twiddle every adjustment hoping it will make the radio work.
:
::Dry joints?? decoupling capacitors?? Sorry fairly new to this not sure what u mean....
::
::
:::::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
::::
::::Are you sure you don't have any dry joints in your decoupling capacitors?

I always appreciate a good book ref. I have ordered the book from Amazon.com. Thanks for the tip. -Shane.

10/29/2008 11:12:39 AMBill VA

:Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS

You most probably have an open...cap or resistor? The hissing sound is associated with open "old" carbon resistors. Reading good is not the test, it's a guide. Operation is. Too an open at bad joint at electroytics and other caps are causes. How long do you let it hiss, a electroytic could be cooking. Even an open back at antenna area. My bet is you have an open in one of the old resistors. Voltage readings are very helpful. But you can try this. I would turn set on and use an insulated something to hook around each old resistor and pull on it. Hopefully one will break apart.

Bill

10/29/2008 2:54:00 PMG. Berg THANKS BILL

Thanks Bill..I think that is my problem ..I will give that a try...On this model they have a tone control that has its own on/off switch (separate from power on/off) and hissing sound ONLY is present when tone is switched off...Sooooo I will check resitors...THANKS

::Hi all..I faithfully recapped a Wells Gardner 6-A chassie and get a hissing/high pitched sound. I tried to adjust all trimers...but no luck....In Wells Gardner lit..it mentions to have antenna lead coated with braided wire..tryed that ..no luck.....Also I replaced .25 caps with .22 could that be it? ...Also tested all resistors..they check out good...Or is it something else.....THANKS FOR ANY SUGGESTIONS
:
:You most probably have an open...cap or resistor? The hissing sound is associated with open "old" carbon resistors. Reading good is not the test, it's a guide. Operation is. Too an open at bad joint at electroytics and other caps are causes. How long do you let it hiss, a electroytic could be cooking. Even an open back at antenna area. My bet is you have an open in one of the old resistors. Voltage readings are very helpful. But you can try this. I would turn set on and use an insulated something to hook around each old resistor and pull on it. Hopefully one will break apart.
:
:Bill