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'66 Rock-ola Amplifier



 
 
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  #1  
Old October 12th 03, 04:08 PM
John Hayes
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Default '66 Rock-ola Amplifier

have replaced all the capacitors but am still getting a low-end "thud"
disturbance in the audio... could it be a transformer or rectifier?
and if anyone knows of a good juke doc in the kansas city area, i'd
sure like to meet up with them!
thanks-
john hayes
Ads
  #2  
Old October 12th 03, 05:13 PM
george craig
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John, did you replace the power supply electrolytics???-George


John Hayes wrote in message
om...
have replaced all the capacitors but am still getting a low-end "thud"
disturbance in the audio... could it be a transformer or rectifier?
and if anyone knows of a good juke doc in the kansas city area, i'd
sure like to meet up with them!
thanks-
john hayes



  #3  
Old October 13th 03, 10:21 PM
John Hayes
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"george craig" wrote in message ...
John, did you replace the power supply electrolytics???-George


no, just the capacitors... tell me more.

-j
  #4  
Old October 13th 03, 10:59 PM
george craig
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You could have motorboating feedback through the power supply..bad lytics
that supply
the low level amp stages......these are the round aluninum cans on top of
the chassis..George



John Hayes wrote in message
om...
"george craig" wrote in message

...
John, did you replace the power supply electrolytics???-George


no, just the capacitors... tell me more.

-j



  #5  
Old October 13th 03, 11:01 PM
george craig
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Forgot to ask , Is this A TUBE or TRANSISTOR amp???George

george craig wrote in message
...
You could have motorboating feedback through the power supply..bad lytics
that supply
the low level amp stages......these are the round aluninum cans on top of
the chassis..George



John Hayes wrote in message
om...
"george craig" wrote in message

...
John, did you replace the power supply electrolytics???-George


no, just the capacitors... tell me more.

-j





  #6  
Old October 13th 03, 11:53 PM
Tony Miklos
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John Hayes wrote:
"george craig" wrote in message ...

John, did you replace the power supply electrolytics???-George



no, just the capacitors... tell me more.


Electrolytics are a type of capacitor. I forget if that is one of those
amps that has a seperate power supply, if so, did you change all the
capacitors in that also? Including the big aluminum "can" type capacitors.

--
Tony

  #7  
Old October 14th 03, 03:01 AM
John Hayes
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"george craig" wrote in message ...
Forgot to ask , Is this A TUBE or TRANSISTOR amp???George

george craig wrote in message
...
You could have motorboating feedback through the power supply..bad lytics
that supply
the low level amp stages......these are the round aluninum cans on top of
the chassis..George



tubes!
  #8  
Old October 14th 03, 06:34 AM
george craig
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Is this mono with 6L6 output or stereo with7868 outputs ????George



John Hayes wrote in message
om...
"george craig" wrote in message

...
Forgot to ask , Is this A TUBE or TRANSISTOR amp???George

george craig wrote in message
...
You could have motorboating feedback through the power supply..bad

lytics
that supply
the low level amp stages......these are the round aluninum cans on top

of
the chassis..George



tubes!



  #9  
Old October 14th 03, 10:37 PM
John Hayes
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Default

"george craig" wrote in message ...
Is this mono with 6L6 output or stereo with7868 outputs ????George


stereo.
 




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