INSTRUCTION MANUAL. R. L. DRAKE. MODEL. R.4B. RECEIVER. PASSBAND. MODEL. RECEIVER. PRICE. Instruction Manual. $ GET THE BEST FROM YOUR DRAKE R4B. RECEIVER. Set the trimmer (NB threshold) as described in the R4 manual (turn until the NB attenuates the signal . View and Download R-4 B instruction manual online. R-4 B Receiver pdf manual download.
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If you have a general coverage receiver handy set it up next to the R4B and run a small length of wire from the general coverage receiver’s antenna terminal any lay it beside the R4B. Item Location see all. Next tune the general coverage receiver to somewhere in the output frequency range of the VFO in the R4B.
I have put rf into pin 7 and can hear it at and I do get some noise when I inject an audio signal as well. Includes an 11″ x 17″ one-piece foldout schematic diagram!
Sign up to our Newsletter Get our latest news and links in your email. Greg, Does the signal you pick up at 4.
A friend from long ago had one homebrew transmitter that I named Christine after the Stephen King novel because both the d4b and second owner were both killed by it. Refine more Format Format.
Webmaster, add a Remote rating Drake R4B manual – related links We thought you might also be interested in these additional web sites, selected from the same category: If working you can use the built in crystal calibrator as a frake generator. Oxidation of the switch contacts often result in the PTO not being connected to the premix circuitry.
R.L.DRAKE R-4 B Instruction Manual
For more recent exchange rates, please use the Universal Currency Converter. This is all the manuals for Drake. For parts or not working 1.
About Drake R4B manual The resource is currently listed in dxzone. Can you hear it at all in the speaker – even very faintly? Show only see all. You should plainly hear each band select crystal oscillating in the general coverage receiver. Delivery Options see all. This page was last updated: I have cycled the vfo-crystal switch several times, hopefully the oxidation has been dealt with greg ve3gph.
Feb Sun 15, 1: Easy to change, just seven screws. Modified Item see all. Dec Mon 31, 6: Made for Drake by Network Sciences. Feb Sun 15, 9: And when you click on the file or icon it will count as a download. This will determine whether or not the band select crystals are oscillating.
The scale is 1 – 10, with 1 being poor and 10 being excellent. Takes about 10 seconds to install. You are right Dick I am not a technician, just learning so I can work on these when I retire, in six weeks yeah!!!
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If possible use a 10X probe if you are not already. If you have some stuff that not is listed here you can donate this by contact mods. If not does the S meter deflect when the crystal calibrator is on?
SP Manual inc Schematic. I have two more electrolytics to install. We have manuxl many of these receivers missing these or have cheap butchered plugs in them.