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 hear some but not all of the above oscillators in the general coverage receiver, your problem at least one of them is in the area where you hear nothing. Feb Sun 15, 3: Refine your search for drake receiver.

I try and not start adjusting anything inside the radio until everything else fails. Includes an 11″ x 17″ one-piece foldout schematic diagram!

AL4 Loop antenna Manual. Previous topic Next topic. The injection cable in the Drake Twins should be a low capacitance cable.

Unit has been tested and works well as it should. Show only see all.

You can verify whether or not it is working by turning it on and tuning the adjacent general coverage receiver to KHz points. This is the manuals page for Drake.

R.L.DRAKE R-4 B Instruction Manual

Custom Bundle see all. If the crystal calibrator is working you will plainly hear it every KHz in the general coverage receiver. If working you can use the built in crystal calibrator as a signal generator. Service provided by Google FeedBurner. Greg, The VFO amplitude pin 7 of V8 shouldn’t change as you tune but the period of the sine wave should. Radio Communication Equipment I will check the phone jacks, I think they are ok.


Drake R4B manual

Of course the switch should end up in the VFO position. If not does the S meter deflect when the crystal calibrator is on? Greg, Does the signal you pick up at 4. Installing 2- 3- 4-filtering kits. R-4C Original low voltage power supply schematic. TWO 2 Radio Shack 47 6.

Complete Primo tube receiver tubes kit – all new tubes – start hearing that DX again with a new tube set to spark up your receiver! Number of bids and bid amounts may be slightly out of date. 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: Dec Mon 31, 6: Feb Sun 15, 8: Page 1 of 2.

Greg, 3 and 4 are the heater so you are seeing 60hz AC there. SC-2 SC-6 Spare parts. This should confirm or not that each of the IF’s are working. Feb Sun 15, 1: I have measured the voltage on all the tubes and pin 1 v3 seemed to janual the one that was out the most, it is supposed to be It is is not working you won’t hear anything.


majual I tried the short wire with the shortwave reciever and I could not pick anything up on the receiver trying to listen for the crystal frequencies. If you have some stuff that not is listed here you can donate this by contact mods. Item Location see all. With the scope connected to V8 pin 7 do you see the waveform width change as you tune from one end of the VFO to the other?

A friend from long ago had one homebrew transmitter that I named Christine after the Rrake King novel because both the builder and second owner were both killed by it.

And when you click on draks file or icon it will count as a download. You should hear each IF frequency in the general coverage receiver. All Auction Buy It Now.

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