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Hi Doug, I tried mu metal shielding but to no avail. Yes rotating the transformer is tedious, but it solves the problem. There is quite a variation from R-4C to R-4C and I have no idea why. That said

Hi Paul, Comments inserted below. Ro Sent: Wednesday, March 22, 2023 11:27 AM To: [email protected] Subject: Re: [DRAKE-RADIO] R4C power supply question Rob, I don’t recall if you and I reached

I definitely noticed the hash on the audio when I bought my first later-production R-4C and spent a fair amount of time trying to tame it. The location of that third mixer and its design meant that

I would first have to determine if this is actually a problem in my R4C but I doubt I would go to the trouble of reorienting the transformer. I have a large piece of mumetal somewhere that we used in

So, out of the gang here, how many of you would probably check-in to a 20m net on the weekends? Let's see if this is worth pursuing. I can certainly help out here, as I'm definitely on 20 with a

Rob, I don’t recall if you and I reached the same but independent conclusions at the same time, but I discovered the power transformer issue back in 2011 when my R-4C and R-4B underwent thorough

I would be game to try 20m, although I don't know if my 2nd-floor-balcony doublet will put out any sort of signal on that band. I'll have a better idea later this week when I finish stringing it up

Hi Doug, Please see comments inserted below. Rob, NC0B Sent: Tuesday, March 21, 2023 11:28 PM To: [email protected] Subject: Re: [DRAKE-RADIO] R4C power supply question Rob, Yes I completely

Collins at 2:00 utc. 14.263 Elkins Wetherill Senior Vice President / Regional Partner Verus Partners, LLC ewetherill@... 484-433-0709

Mark, I think you are off by an hour. The vintage SSB net is 2pm to 3pm ET Heathkit net 3pm to 4pm ET Swan net 4pm to 5pm ET Don’t forget the Collins net on 14.263 at 4pm ET Plus your Kenwood net at

I attempted to order a CD using PayPal. I got a message back from PayPal saying that recipient needed to open a PayPal account and if they don't do that within 10 days the transaction will be

The Collins Collectors Association original 20m net is on or about 14.263 at 2000 UTC on Sunday afternoon. It gets cancelled on major contest weekends via the CCA email list. I can usually get into

I tried a 1.0 uF ceramic (because that is all I have on hand) in series with a 33K resistor. I placed this network in parallel with the M RC network and got the desired result with no obvious problems

Doug, By the looks of it, production ended in 1979. Drake Equipment (wb4hfn.com) ( http://www.wb4hfn.com/DRAKE/DrakeSNDatabase-P2.htm ) The last one that Ron has listed is 29306, so there are probably

Doug, I had the same issue with the filament voltages on my R4-C. I coiled up (I am guessing about 6 ft) of small gauge hookup wire and trimmed it to get the correct voltage. The coil was about 1 1/2

There are 3 vintage nets held on 14.292.5 every Sunday.? If someone wanted to start a Drake net how about either 2pm or 6pm eastern? Would have to coordinate with the NCS's of those nets to let them

I've never worked on a 2C, but did I read that the shaft (or bushing?) is made of a fibrous material? If so, will that absorb oil and expand? Thanks, Barry - N4BUQ

Rob, I can see the problem with the glass seal failing. ?It’s pretty clear looking carefully at the pin. ?My other three filters are Network Science and I think they will simply never be taken

Why not get some volunteers to start it up on 20? All we need are a few people willing to take turns being NCS. The harder part will be to find the right time and frequency, since there are likely

I would first check really carefully...with a loupe or magnifying glass, and a STRONG light to see if the existing knob is not already split perhaps. As far as the control itself...I would avoid spray