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And there are also some that are (seemingly unbeknownst to them) operating outside the band edge running MORE than roughly 3kHz wide. After I verified it on different SDRs around the country !!,? I

Yes it is too bad Drake didn’t get the timing better for the TR-7 and R-7 vs. the rigs that landed in embassies around the world some years later. Rob, NC0B Sent: Sunday, March 31, 2024 2:04 PM To:

Correct, but more of a commercial product for the government. Rob, NC0B Sent: Sunday, March 31, 2024 1:46 PM To: [email protected] Subject: Re: [DRAKE-RADIO] Those of us members in the HALF

"Rob Sherwood" <rob@...> wrote: I thinks some of that was happening in the TR8 prototypes. Of which samples are known to still exist. By that point the handwriting was on the wall. The Japanese

Evan/Rob; In addition to the TR-4310 transceiver, aka TR-7(A) + RV-75, the *R-4245 *receiver was also pretty much an R-7(A) *with an RV-75 built in*. Both rigs are among the rarest Drakes around. Both

The RV-75 was part of the TR-7, called the 4310.

What I didn’t like about the old mixing scheme was my TR-4 and later TR-4C tuned backwards on 80m. This complicated the frequency scales of the discs immensely. By the time the TR-4Cw with RIT came

Manufacturers meaning Drake, right? The majority of the others, Collins, Heath, Hallicrafters, Sideband Engrs, National? used single SSB filters and selectable crystal carrier/BFO oscillators to move

Decades ago hams often operated on USB on 7.297 kHz so their opposite sideband wasn’t out of band. Opposite sideband attenuation often wasn’t as good as it is today. On the other hand, transmit

Not yet, Glenn. I am still puzzled at the voltages on pins 2 and 3. I can't help but think that the ALC side of the 12AX7 is playing a part. I had to continue working on some other items I have had

Have you rectified the problem(s)? I am curious. -- best regards, Glenn, OZ1HFT

And yet, for some reason, manufacturers maintained this configuration, necessitating the use of an extra filter — which is by far more expensive than two simple crystals. Steve Wedge, W1ES/4 Time

Hi Gary, You are indeed in the minority knowing this gem of information!? The old ARC-5? 5.000-5.500 MHz VFO was perfect for this use! I spent a fair amount of time trying to explain why I was using

I’m sitting here looking at my wonderful digital streaming audio system, and the Digital to Analog Inverter most often says USB as the operating mode. I can’t help thinking about Upper SideBand!

Steve, I always thought someone changed the knob on my R4B at some time in the past, but when I saw the picture of the R4B with the same knob I thought that's weird. Anyway, thanks for the

The Drake T-4XB and R-4B radios are SOLD. Thanks to those who responded. Myron KL7YY [email protected]> wrote:

Thanks for the tips to all.....after Easter will dive back in and give it more attention.....will follow up with what worked.....I hope!! Bill......wa8bda

Thanks for the photos Myron. ?I know it’s coming from a good home. ?I’ll get in touch soon to arrange purchase. ?Consider it sold.

Dave, Drake kept the B Line knobs throughout the series. The knob you see on the R-4B is a C Line knob. I have also seen C Line sets with TR7 knobs and A-Twins with B Line knobs and skirts. Folks mix

Hello Larry, I would rather sell locally than ship. Here are some pictures of the transmitter Myron KL7YY T-4XB-3.jpg