Crosley 124 silent

9/15/2005 7:32:43 PMDrew

Hi,
I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
Also all tubes test good , I would appreciate any suggestions.

thanks

Drew

9/15/2005 8:07:08 PMNorm Leal

Hi Drew

Measure voltages. What voltage do you have on a large pin of your #80 tube? What voltage on pin #2 of each #47 tubes? Voltages should be around 250 on your 47 tubes.

Norm

:Hi,
: I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
: Also all tubes test good , I would appreciate any suggestions.
:
:thanks
:
:Drew
:

9/15/2005 8:43:37 PMDrew

Hi Norm,

Thanks for looking at my post.
Voltages on the 80 are pin 1 =336v, pin 2= 340v ac, pin 3= 340v ac, pin 4 = 338v.
Voltages on the 47's pin are 280v each.
I belive they are good , what do you think ?:

thanks
Drew

Hi Drew
:
: Measure voltages. What voltage do you have on a large pin of your #80 tube? What voltage on pin #2 of each #47 tubes? Voltages should be around 250 on your 47 tubes.
:
:Norm
:
::Hi,
:: I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
:: Also all tubes test good , I would appreciate any suggestions.
::
::thanks
::
::Drew
::

9/15/2005 9:09:14 PMDrew

:Hi Norm,
:
:
: Thanks for looking at my post.
: Voltages on the 80 are pin 1 =336v, pin 2= 340v ac, pin 3= -.3v ac, pin 4 = -.3v.
: Voltages on the 47's pin are 280v each.
: I belive they are not good , what do you think ?:
:
:thanks
: Drew
:
:
:
:
:Hi Drew
::
:: Measure voltages. What voltage do you have on a large pin of your #80 tube? What voltage on pin #2 of each #47 tubes? Voltages should be around 250 on your 47 tubes.
::
::Norm
::
:::Hi,
::: I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
::: Also all tubes test good , I would appreciate any suggestions.
:::
:::thanks
:::
:::Drew
:::

9/15/2005 9:10:54 PMDrew

::Hi Norm,
::
::
:: Thanks for looking at my post.
:: Voltages on the 80 are pin 1 =336v, pin 2= 340v ac, pin 3= 340v ac, pin 4 = 338v.
:: Voltages on the 47's pin are -.3v each.
:: I belive they are not good , what do you think ?:
::
::thanks
:: Drew
::
::
::
::
::Hi Drew
:::
::: Measure voltages. What voltage do you have on a large pin of your #80 tube? What voltage on pin #2 of each #47 tubes? Voltages should be around 250 on your 47 tubes.
:::
:::Norm
:::
::::Hi,
:::: I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
:::: Also all tubes test good , I would appreciate any suggestions.
::::
::::thanks
::::
::::Drew
::::

9/15/2005 9:13:43 PMDrew

:::Hi Norm,
:::
:::
::: Thanks for looking at my post.
::: Voltages on the 80 are pin 1 =336v, pin 2= 340v ac, pin 3= 340v ac, pin 4 = 338v.
::: Voltages on the 47's #3pins are -.3v each.#2 = 4.5v.
::: I belive they are not good , what do you think ?:
:::
:::thanks
::: Drew
:::
:::
:::
:::
:::Hi Drew
::::
:::: Measure voltages. What voltage do you have on a large pin of your #80 tube? What voltage on pin #2 of each #47 tubes? Voltages should be around 250 on your 47 tubes.
::::
::::Norm
::::
:::::Hi,
::::: I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
::::: Also all tubes test good , I would appreciate any suggestions.
:::::
:::::thanks
:::::
:::::Drew
:::::

9/15/2005 9:24:23 PMDrew

:
:
:

:
:
:
:
:Hi Drew
::
:: Measure voltages. What voltage do you have on a large pin of your #80 tube? What voltage on pin #2 of each #47 tubes? Voltages should be around 250 on your 47 tubes.
::
::Norm
::
:::Hi,
::: I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
::: Also all tubes test good , I would appreciate any suggestions.
:::
:::thanks
:::
:::Drew
:::

9/15/2005 9:26:43 PMDrew

:
:sorry about all the post. When i checking voltages , I found a bad connection , I fix it and the trying to post my bad typing got in the way . The last post is the right one.

thanks
Drew

::
::
::
:
::
::
::
::
::Hi Drew
:::
::: Measure voltages. What voltage do you have on a large pin of your #80 tube? What voltage on pin #2 of each #47 tubes? Voltages should be around 250 on your 47 tubes.
:::
:::Norm
:::
::::Hi,
:::: I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
:::: Also all tubes test good , I would appreciate any suggestions.
::::
::::thanks
::::
::::Drew
::::

9/15/2005 8:13:26 PMThomas Dermody

Remember first that your radio requires an external antenna.

You need to check for appropriate voltages with respect to the common spot to which the negative side of your meter is placed. In your circuit diagram, I think that the chassis is tied directly to the center tap of the high voltage winding of the power transformer. If this is the case, the chassis should be the most negative point in the radio (connecting both leads to this will give you zero volts). Every point not at chassis bias should be positive to the degree listed in the voltage chart on your schematic (control grid voltages often cannot be read with a 20,000 ohms per volt meter, but if a sensitive meter is obtained, they should usually be at zero to slightly negative when the CATHODE of each tube circuit in question is used as the reference point).

Check all of your voltages. You should have positive voltages at the screen grids and plates of all tubes. If not, check the resistors and/or coils-transformers which connect these items to their positive power source. Keep working back towards the cathode of the rectifier until the offending component is found. For instance, if one of the two halves of the output transformer primary were blown, that related output tube would have no positive reading at its plate. If the field coil was blown, you would not find positive voltages at any of the tubes other than the rectifier. If you lack the correct positive voltage at any of the RF plates or screens, then the offending element's coil or resistor which connects it to B+ should be examined. Any resistor or coil which feeds a bank of tubes should be examined if several tubes lack voltage.

If all voltages at all points have been found to be agreeable, then check other components like the volume control. Make sure any component like this is not faulty. Disconnect it and check its operation with your meter.

Re-examine all of the components which you replaced. Be sure you connected each appropriately.

If the set still will not operate even after all of the above has been checked, check the RF alignment with a good signal generator that is in good working condition.

Thomas

3/13/2006 4:59:03 PMDave

3/13/2006 5:15:18 PMDave

::Hi,
:: I am working on a Crosley 124 "Playboy" radio. I replace all caps and most resistors and I do not get a sound out of it. I thought it might be the speaker, as far as I can tell the speaker seems good, I could be wrong.
:: Also all tubes test good , I would appreciate any suggestions.
::
::thanks
::
::Drew
::Hi Drew. Did you finally get the Crosley playing?
I just recently purchased the same radio, fully recapped and had the same problem as you. All tubes seemed perfect, but I couldn't get a sound out of it except for an almost in-audible hum. I pulled the chassis to look for loose connections and sure enough I found a small loose wire still connected at one end, and with my very limited knowledge of circuits etc. I had no idea where the other end belonged. I actually bought a junk chassis on ebay(complete with tubes) for 10 bucks, put the two chassis next to each other and sure enough I was able to locate the same wire on the junk chassis. I soldered the loose end and sure enough the radio plays like new. Sorry I can't be more specific as to the location of the wire, but I can tell you that one end is soldered to a "47" tube "sprocket" and the other end to a "plate" where an electrolytic cap. is located.