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#1
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Drake R8B VFO adjustment
Here is the adjustment point:
http://www.bluegrassdavinci.com/gall...keR8BVFOAdjust Let the radio warm up for a few hours to get thermally stable, and then flip upside down, remove the cover and make your adjustment. I generally adjust for WWV at 10 MHz. You may need a small flashlight to shine into the adjustment hole to make it easier. |
#2
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Drake R8B VFO adjustment
In article .com,
"JerryJ" wrote: Here is the adjustment point: http://www.bluegrassdavinci.com/gall...keR8BVFOAdjust Let the radio warm up for a few hours to get thermally stable, and then flip upside down, remove the cover and make your adjustment. I generally adjust for WWV at 10 MHz. You may need a small flashlight to shine into the adjustment hole to make it easier. A picture is worth many words. Thank you very much. -- Telamon Ventura, California |
#3
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Drake R8B VFO adjustment
Telamon wrote:
In article .com, "JerryJ" wrote: Here is the adjustment point: http://www.bluegrassdavinci.com/gall...keR8BVFOAdjust Let the radio warm up for a few hours to get thermally stable, and then flip upside down, remove the cover and make your adjustment. I generally adjust for WWV at 10 MHz. You may need a small flashlight to shine into the adjustment hole to make it easier. A picture is worth many words. Thank you very much. Yeah it's pretty easy to do and the trimpot is not that sensitive. The Drake service manual recommends reading pin 1 of U35 and adjust until it reads 35.00000 MHz +/- 10 Hz if the receiver has been warmed up for at least 2 hours -or set it to 35.00017 MHz +/- 10 Hz at room temp (if you don't want to wait). Setting to WWV is, of course, just fine also. -- Brian Denley http://home.comcast.net/~b.denley/index.html |
#4
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Drake R8B VFO adjustment
On 19 Nov 2005 13:03:45 -0800, "JerryJ" wrote:
Here is the adjustment point: http://www.bluegrassdavinci.com/gall...keR8BVFOAdjust Let the radio warm up for a few hours to get thermally stable, and then flip upside down, remove the cover and make your adjustment. I generally adjust for WWV at 10 MHz. You may need a small flashlight to shine into the adjustment hole to make it easier. That be it. |
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