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I'm still looking for a TR4/TR4C SSB filter set and selector switch or a whole parts radio.? Looking to pay about $40 or so plus shipping depending on what you have. Thanks, Barry KJ5GQM

I tested the three PIN diodes on the rear HPF board.? The Drake service group document says the following is? normal: RX? ? ? ? ? ? ? ? TX CR1501? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

NTSC- Never The Same Color? Jim WA9Z

Rather than leave this hanging, I want to follow up and say the package was mailed yesterday so all is good! Thanks, Barry - N4BUQ

Sorry guys. I meant to send that directly to Gary. Barry - N4BUQ

Hi Gary, Have those tubes shipped? The tracking says the shipping label was created on the 8th but still just says USPS is awaiting the item so thought I'd ask. Thanks, Barry - N4BUQ

I really need run my test again to verify that I got the decimal point in the right place. I have no test equipment other than the FTdx transceiver. I'll get back to the group on this if this is not

Frank, a couple of things come to mind. Do you mean 500-Hz (a/k/a, cps) instead of 500-kHz (a/k/a, kc)? That's a big difference. If the difference is 500-Hz, is the sideband switch in the "X" position

Yes, check your passband and sideband. I still do this occasionally. The Twins use LSB for CW. Steve Wedge, W1ES Time flies like an arrow. Fruit flies like a banana. Sent from [Proton

Hi Frank, Really 500Kc?? Could it be 500c? (500Hz nowadays)? 500-800Hz is about the normal C line offset. You should use LSB on the R-4 for CW.. could you be using USB? 73, Gary WB6OGD

Hello: I’m Frank KB0W in Eldorado CA. I have several nice Drake Cline rigs that I love but I have a problem. I used my Cline (R4C serial no. 27665, T4XC Serial no. 28567) for years with great DX

Scott: Busy with some house projects today...and the prep for an interested buyer for my beloved and long-owned IC-781. Hard to believe....or at least for my wife to believe, that I AM trying to

Peter: Many thanks for sending a photo of the SPR-4 preselector overlay for use with the FS-4. These overlays must be very rare because I’ve never seen one, but I have seen the R-4 (any) overlays

Peter, Here is one more picture that might be helpful.? This is an original strip of Drake stickers for the SPR-4 crystal dial.? It makes a great reference for the settings for each possible band

Very interesting information. Until 21.5 MHz the plastic xtal dial on my SPR-4 has bright numbers and letters printed on it. Hereafter adhesive labels for other xtals and band positions. I expected

Scott: To answer your last comment first...YES....Drake did make an overlay specifically for the SPR-4 Preselector control when used with the FS-4. Pic attached. It was included in the #1523 kit with

Bill, et al: Over the years I’ve had four SPR-4’s and I don’t recall any of them being fitted with an OEM crystal selector that was preprinted. IMHO, Preprinting the selector would at least

And now we have a new good way to set the Carrier Oscillator, improving on Drake's "make the noise the same on both sidebands" method. Not so easy to accurately set 9.0MHz if you don't have many

Barry: Thanks for the update; it’s great to hear that this problem with your TR-4 has been corrected. The problem you experienced with your TR-4 underscores several important considerations to keep

Bill: Interesting on the blank....or almost blank, dials. If purchased off Ebay about 20 years ago, they very possibly could have come from John Kriner, a Drake technician that wound up with a lot of