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Post by 238 on Sept 11, 2021 10:32:22 GMT -5
A friend call an said he had picked up a good looking set of Golden Eagles. He said they worked good for a little while, then the receive would drop off. He does not have a tube tester. He ordered a new set of tubes for it. He said the 6AQ5 tube was running real hot, hotter than the rest of the tubes. Not sure if there is reason for that or not. Jim/238
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Post by 2600 on Sept 11, 2021 23:04:57 GMT -5
The original "68R, 68T" Golden Eagle radio?
Some folks call it the "Mark One", but Browning never did.
The 6AQ5 tube runs hot on purpose. There is a 270-ohm 1-Watt resistor under the tube socket that can go bad and change its resistance value. This causes the tube to run too hot. I just recommend changing it, since it can still go bad later if it tests okay today.
That receiver has "K-Tran disease". Typical symptom is for the receiver's sensitivity to spontaneously fall off a cliff, even when the tubes all test okay.
And if you haven't checked the tubes, it would be a good time to do that.
Browning stopped using the K-Tran IF transformers in the Mark 2. Barkett still had some, last I checked. Can't remember if that model had four or five of the 455 kHz K-Tran IF transformers in it. Tricky part is to find out when you have replaced enough of them. Could end up having to change them all, eventually.
73
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Post by 238 on Sept 12, 2021 8:23:18 GMT -5
OK. I will go check the tubes one day. I always change the 270 ohm & the 2 caps on the 6AQ5 tube. Thanks Jim/238
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Post by 2600 on Sept 12, 2021 23:02:44 GMT -5
I always change the 270 ohm & the 2 caps on the 6AQ5 tube. Thanks Jim/238 GOOD policy! 73
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Post by sharky on Nov 5, 2021 20:13:28 GMT -5
I rebuilt those K-Trans, ripping out the capacitors. What a pain! They now work perfectly and will forever more.
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Post by 2600 on Nov 6, 2021 0:22:38 GMT -5
Rock on! That was a Jay-Oh-Bee.
73
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