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 Post subject: RCA 6-RF-9 Volume
PostPosted: Feb Wed 28, 2018 2:59 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 704
Location: Walden, NY USA
I have had this radio for a while, having restored it a few years ago. The radio is a beautiful performer. I have the Bakelite version.

Lately, while playing AM, the volume drops to a low level. All of a sudden it gets loud (normal)again. Tapping the radio does not bring the volume up again.

Any ideas on what the problem could be? I am hoping it is not the dreaded IF transformer capacitor migration problem.

Thanks

Mike

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 Post subject: Re: RCA 6-RF-9 Volume
PostPosted: Feb Wed 28, 2018 3:04 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 7963
Location: Cleona, PA
Try wiggling the tubes while the radio is playing to see if you can duplicate the problem. If so, clean all of the tube pins. Another check: poke at underchassis wiring with a wooden stick to see if there's a bad solder connection.

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 Post subject: Re: RCA 6-RF-9 Volume
PostPosted: Mar Mon 05, 2018 8:13 pm 
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Location: Walden, NY USA
wrnewton wrote:
Try wiggling the tubes while the radio is playing to see if you can duplicate the problem. If so, clean all of the tube pins. Another check: poke at underchassis wiring with a wooden stick to see if there's a bad solder connection.

Thanks! That was it. The 6CB6 tube had intermittent contact. I cleaned the socket and changed out the tube with on from my stock.

Thanks
Mike

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