RE: [AMRadio] More capacitors
Hi Mike, I have cobbled together a couple of capacitors to get what I need, but I would sure like an exact replacement if you have it. Thanks, Rick/K5IAR Hey Rick, Did you find your cap yet? I bet I have one. Let me look around after hearing if you got one or not. Mike WE0H __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Intermittent Filament
Unfortunately for me it seems the intermittent is on the inside. All of the pins appear to be soldered well and tight. Thanks for the input. 73, Rick/K5IAR Does the pins or socket contacts look like they got over heated? Any solder dropped out of the pins? I have read about resoldering pins but the plating eventually is gone so the solder won't stick. Even so too much heat could compromise the pin to glass seal. If that is the case of soldering, I would try silver soldering if you could get in there and do it fast with a high wattage iron. Just what I have read online, no experience personally. If indeed that is the failure, make sure you run better cooling on the sockets when you do repair it or replace both the sockets and tubes so the contact to the pin is absolutely perfectly clean and super tight. Mike WE0H __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Intermittent Filament
Well that stinks...Time for some target practice then. I'll go look for that cap in a few minutes and report back yea or nae. I have a lot of those some new even and most Military. Mike WE0H Rick Brashear wrote: Unfortunately for me it seems the intermittent is on the inside. All of the pins appear to be soldered well and tight. Thanks for the input. 73, Rick/K5IAR __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] More capacitors
Hi Rick, All I have is .25uf @ 600vdc & .05uf @ 1000vdc metal can rectangular paper caps. Those are the duel cap cans. I have at least 2 of each and other higher value cans. Mike WE0H Rick Brashear wrote: I have run into a small roadblock in the audio section of my old GE. I need at least one, two would be better, .25 mfd @ 1000 wvdc paper capacitors. They are rectangular can capacitors that mount by a flange toward the bottom. I can send exact measurements and pictures to anyone who may have such a critter. They are audio grid coupling capacitors so they can't be ceramic. I was going to rebuild the ones I have, but the Orange Drops I have to make up that value are much too large for the can and they are rated at only 600 vdc. If you have such a capacitor and would like to sell it or them, please, contact me. Thanks, Rick/K5IAR __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] F/S DX-100
I have a very nice DX100 F/S. This transmitter puts out a full 100 watts. It works really well. Front Panel has been replaced and the cabinet powder coated. The knobs have been replaced with The K9STH Repro knobs. I have pictures. Inside is not real clean but wiring was done well. Has the PTT mod done and uses a TRS mic plug. Comes with complete manual. Price is $325 firm. Will ship but only with pro packing and insurance. Can deliver to Hawkins, Belton or Paris Hamfest at no charge...For Pictures and info please e mail me off the list at [EMAIL PROTECTED] Very Best 73's Bob W1PE The Voice of Mesquite www.w1pe.com "Money is only temporary, but radios are forever" - Jim Little aka "the old dog"/K5BAI __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] F/S DX-100
On 9/18/07, Bob Peters <[EMAIL PROTECTED]> wrote: > I have a very nice DX100 F/S. This transmitter puts out a full 100 > watts. It works really well. > Front Panel has been replaced and the cabinet powder coated. The knobs > have been replaced with > The K9STH Repro knobs. I have pictures. Inside is not real clean but > wiring was done well. Has the > PTT mod done and uses a TRS mic plug. Comes with complete manual. Price > is $325 firm. Will ship but only with pro packing and insurance. Can > deliver to Hawkins, Belton or Paris Hamfest at no charge...For > Pictures and info please e mail me off the list at [EMAIL PROTECTED] Here are the pics of Bob's DX-100 http://w5ami.net/w1pe/ __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Receivers
Much of the traffic here concerns transmitters. References to receivers seem relatively sparse in comparison. With that subjective impression as an opening, what sort of receivers are in use in the AM community? Kim Elmore, N5OP __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
OK Kim, I'm using a Hallicrafters SX-96. Ellen - AF9J __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
what sort of receivers are in use in the AM community? I have a lot of good receivers, but for easy AM operating I usually reach for my Kenwood R-1000. I also have an HQ-110 on the operating desk, and I'm considering restoring my Collins 75A2 as a main receiver as well. I'm at my ancestral home this week, and I just loaded my old RBB navy battleship receiver into the car to take home for possible use as the mate to my Gates BC1T transmitter on 160m AM. 82 lbs without power supply! I've got to find a manual or at least a schematic, and build a power supply for it. I'm hoping that, as a prewar receiver, it won't need a bunch of parts replaced. Steve WD8DAS [EMAIL PROTECTED] http://www.wd8das.net/ Radio is your best entertainment value. Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.com __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
I use a Halicrafters SX-110. While the Halicrafters receivers don't have the stability for SSb they are just fine on AM. Bob Macklin K5MYJ Seattle, Wa, - Original Message - From: <[EMAIL PROTECTED]> To: Sent: Tuesday, September 18, 2007 6:45 PM Subject: Re: [AMRadio] Receivers > > >what sort of receivers are in use in the AM community? > > I have a lot of good receivers, but for easy AM operating I usually > reach for my Kenwood R-1000. I also have an HQ-110 on the operating > desk, and I'm considering restoring my Collins 75A2 as a main receiver > as well. > > I'm at my ancestral home this week, and I just loaded my old RBB navy > battleship receiver into the car to take home for possible use as the > mate to my Gates BC1T transmitter on 160m AM. 82 lbs without power > supply! I've got to find a manual or at least a schematic, and build a > power supply for it. I'm hoping that, as a prewar receiver, it won't > need a bunch of parts replaced. > > Steve WD8DAS > > [EMAIL PROTECTED] > http://www.wd8das.net/ > > Radio is your best entertainment value. > > > > > > > > Email and AIM finally together. You've gotta check out free AOL Mail! - > http://mail.aol.com > __ > Our Main Website: http://www.amfone.net > AMRadio mailing list > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. > __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
Hi Kim, missed you at the OKC fest. You shudda come we had a good lunch. I have an HRO 60R, NC 183D, HQ 140X and SX 117. All of which I like for the job they are assigned. Jim/W5JO Much of the traffic here concerns transmitters. References to receivers seem relatively sparse in comparison. With that subjective impression as an opening, what sort of receivers are in use in the AM community? Kim Elmore, N5OP __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
For the "old" stuff, I frequently use the National HRO-500. I also frequently use the McKay Dymek DR-33C or the older Squires Sanders SS-1R. Pete, wa2cwa On Tue, 18 Sep 2007 20:27:00 -0500 Kim Elmore <[EMAIL PROTECTED]> writes: > Much of the traffic here concerns transmitters. References to > receivers seem relatively sparse in comparison. With that subjective > > impression as an opening, what sort of receivers are in use in the > AM > community? > > Kim Elmore, N5OP __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Receivers
I have had a bunch over the last 25 years or so, most of the popular ones, tube and transistor, plus various transceivers. Most have at least some good points. The R390 series with outboard audio are very good on AM, with if output, muting built in, good bandwidth choices, accurate frequency readout, good stability. They can be a bear to repair, and you don't want to hop between 160 and 10 meters often! The NC 300 and 303 are good. For top fidelity, some of the real old receivers work great, the SX17, SX28, Scott SLRM, low tube count, low noise, wide bandwidth, and loads of HI FI audio output power. Everyone has a favorite receiver. I personally dislike almost all of the new IC chip based receivers, and the ones with dsp, although the new K3 sounds like it might be great on AM with its sync detector, low noise low distortion setup, built in 8 band eq, line outputs, etc. I will post a review when mine arrives. The modern stuff I have had and my personal rating of it... kenwood R1000, poor, kenwood ts440, poor, icom 735, poor, but the passband tuning worked on AM at least, icom 756 pro, poor, sony 2010, poor with the built in speaker, maybe better otherwise, The only receivers I have had for a while are the homebrew tube type single conversion ones I built a few years ago. Brett N2DTS > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Kim Elmore > Sent: Tuesday, September 18, 2007 9:27 PM > To: amradio@mailman.qth.net > Subject: [AMRadio] Receivers > > Much of the traffic here concerns transmitters. References to > receivers seem relatively sparse in comparison. With that subjective > impression as an opening, what sort of receivers are in use in the AM > community? > > Kim Elmore, N5OP > > __ > Our Main Website: http://www.amfone.net > AMRadio mailing list > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > To unsubscribe, send an email to [EMAIL PROTECTED] with > the word unsubscribe in the message body. > __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
Kim, HRO 60 and a HQ 160 are in the primary operation position here. Look my call up on QRZ for a picture W1TAV Steve __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
I mainly use a Heathkit Comanche MR-1 (with a DX-40 TX). Audio on AM isn't bad at all and I got it for free. Ken, KC8QO --- Kim Elmore <[EMAIL PROTECTED]> wrote: > Much of the traffic here concerns transmitters. > References to > receivers seem relatively sparse in comparison. With > that subjective > impression as an opening, what sort of receivers are > in use in the AM > community? > > Kim Elmore, N5OP > > __ > Our Main Website: http://www.amfone.net > AMRadio mailing list > List Rules (must read!): > http://w5ami.net/amradiofaq.html > List Home: > http://mailman.qth.net/mailman/listinfo/amradio > Help: http://mailman.qth.net/mmfaq.html > Post: mailto:AMRadio@mailman.qth.net > To unsubscribe, send an email to > [EMAIL PROTECTED] with > the word unsubscribe in the message body. > __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
[EMAIL PROTECTED] wrote: I'm at my ancestral home this week, and I just loaded my old RBB navy battleship receiver into the car to take home for possible use as the mate to my Gates BC1T transmitter on 160m AM. 82 lbs without power supply! I've got to find a manual or at least a schematic, and build a power supply for it. I'm hoping that, as a prewar receiver, it won't need a bunch of parts replaced. Steve I'll bet your assumption will be proven correct. I had an RBB show up in my driveway one day years ago, and it's a fantastic receiver. Other than wiring around the unobtainium plug to a Lambda regulated p/s I haven't touched it and the dial calibration is still right on the money. I'm sure as with any receiver of this vintage, it's just luck. I'll see what I have in the way of power supply wiring and schematic. I listen to AM on everything from S-38 to SDR, but my current favorite AM receiver is an HRO-50R1. Love that full range push-pull audio and the PW dial. 73, Bob W9RAN __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
I'm currently using a Collins R-388 and it does an nice job. I also have recently used my Collins 75A2 and it's good as well. I prefer the older Collins line without the mechanical filters. These radios were designed for AM service. The Collins 75A4 and R-390 are acceptable for AM if they have the 6 kc filters. I have a Collins R-390A with 2, 4, and 8 kc filters. The 4 kc filter is to narrow and the 8 kc is normally to wide under most conditions. It still lacks a natural AM sound in my opinion so it's on the shelf. A real sleeper is the National NC-300. A very solid and fantastic sounding AM receiver. I have one and will use it when I fix a problem. Enjoy AM! Joe, KF9EU - Original Message - From: "Kim Elmore" <[EMAIL PROTECTED]> To: Sent: Tuesday, September 18, 2007 9:27 PM Subject: [AMRadio] Receivers Much of the traffic here concerns transmitters. References to receivers seem relatively sparse in comparison. With that subjective impression as an opening, what sort of receivers are in use in the AM community? Kim Elmore, N5OP __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
Kim Elmore wrote: Much of the traffic here concerns transmitters. References to receivers seem relatively sparse in comparison. With that subjective impression as an opening, what sort of receivers are in use in the AM community? I have (3) Hallicrafter R-274's here, Kim and an (on loan) RCA AR-88. I've thumbed a 75A-4, HQ-145, HQ-180, SX-28 a couple of Nationals and several various solid-state devices. I like the SX-28, the AR-88 and R-274's as 1, 2 and 3. It's hard to beat push-pull audio in a receiver, though. A good working SX-28 has more sensitivity. The AR-88 is -hot- as well.. I guess those two are a tie. The R-274's are plenty sensitive and, like the AR-88, receive in a very b-r-o-a-d mode, but they just don't have the 'depth' of sound that the -28 and the -88 have. -- Driving your AM Rig without a scope, is like driving your car at night, without headlights. (K4KYV) -- 73 = Best Regards, -Geoff/W5OMR __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
N5OP and the group, Great question here we use a Collins R-390a as our primary rx. In addition, I use a DRAKE 2A with the 2AQ (q-multiplier) and a Collins 75S-3. The 390A has proven to be a top notch choice. Mine is original with only the requisite capacitor changes being made to ensure seamless operation otherwise. The audio is superb, especially when picked off at the diode detector. The 75S-3 is stock and is used on 10m AM mostly. (when there are band openings) If we jump to riceboxes, the Kenwood TS-930S-AT has a good receiver and isn't too shabby on transmit if band conditons, etc. are cooperative. The 390A is still my favorite. Paired with my DX-100, they're an unbeatable combo. 73 de W4MIL Chuck -Original Message- From: Kim Elmore <[EMAIL PROTECTED]> To: amradio@mailman.qth.net Sent: Tue, 18 Sep 2007 9:27 pm Subject: [AMRadio] Receivers Much of the traffic here concerns transmitters. References to receivers seem relatively sparse in comparison. With that subjective impression as an opening, what sort of receivers are in use in the AM community? Kim Elmore, N5OP __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.com __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Receivers
> Much of the traffic here concerns transmitters. References to > receivers seem relatively sparse in comparison. With that subjective > impression as an opening, what sort of receivers are in use in the AM > community? R-390 with Sherwood detector, SP-600, NC-303. Also have an R-390A, but prefer the R-390. I've been through a lot of receivers over the last 15 years, and these four have ended up the keepers, plus an Ocean Hopper :-) Grant/NQ5T __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
I should also mention my idea to retune one of the excellent old AM car radios from the 1960s as a convenient AM receiver for 160m. I've got a couple on the way from eBay auctions. I remember how good a receiver a radio pulled from a 1964 Dodge was for me as a young AM DXer. And I think it would be poetic to use one of them with the BC1T... they would have been working together in the broadcast band all over the country years ago... Steve WD8DAS [EMAIL PROTECTED] http://www.wd8das.net/ Radio is your best entertainment value. Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.com __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
Daily driver: R-388 2nd radio:R-390 (non A) Also I have a Beckman/Berkeley multi-band WWV reciever - I use it to get a 'quick fix' on propagation across the HF band, and once in a while, to actually recieve WWV... Cheers John KB6SCO DM09fg __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
Kim said: With that subjective impression as an opening, what sort of receivers are in use in the AM community? Well, lets see. Lately I've been using my HRO-60T that I brought back from the dead and a NC-183D. They are my favorites that I'm using now. I like the HQ-140X, the HQ-129, the BC-779-B for AM. I just got a RCA AR-60T that I'm dying to hook up to an aerial just to here how it plays. Oh by the way, the Collins 75A3 sits on the shelf collecting dust. I was never too impressed with it. Mod-U-Lator, Mike(y) W3SLK __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Re: RBB
Bob W9RAN wrote: Steve I'll bet your assumption will be proven correct. I had an RBB show up in my driveway one day years ago, and it's a fantastic receiver. Other than wiring around the unobtainium plug to a Lambda regulated p/s I haven't touched it and the dial calibration is still right on the money. I'm sure as with any receiver of this vintage, it's just luck. I'll see what I have in the way of power supply wiring and schematic. Wow, if you have any info that would be a great help. Believe it or not I actually have the connector for the power supply hook-up. Many years ago this receiver was functional with a homebrew power supply, but way back then I tore the supply down to build something else. But in spite of my youthful attitudes I did keep the connector with the receiver... and now, thirty years later, I'm thinking of putting it back into action. Thanks... Steve WD8DAS [EMAIL PROTECTED] http://www.wd8das.net/ Radio is your best entertainment value. Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.com __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
While we're on the subject... What's the difference (physical, electrical, or ephemeral) between the NC-300 and NC-303? I want to buy one as my main AM receiver, especially for use with my Johnson 6N2 converter with it'd weird IF frequency. Is one decidedly better than the other? 73, Mark W1EOF PS: Anyone got a 300 or 303 for sale or trade? __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
KE9PQ has several of K9RJ's NC300 for sale on his Web-site __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
The NC-300 was designed for AM, and the NC-303 for SSB. I've only had a 303, but I understand the 300 is a much better AM receiver. Steve WD8DAS [EMAIL PROTECTED] http://www.wd8das.net/ Radio is your best entertainment value. -Original Message- From: [EMAIL PROTECTED] <[EMAIL PROTECTED]> To: Discussion of AM Radio in the Amateur Service Sent: Tue, 18 Sep 2007 9:55 pm Subject: Re: [AMRadio] Receivers While we're on the subject... What's the difference (physical, electrical, or ephemeral) between the NC-300 and NC-303? I want to buy one as my main AM receiver, especially for use with my Johnson 6N2 converter with it'd weird IF frequency. Is one decidedly better than the other? 73, Mark W1EOF PS: Anyone got a 300 or 303 for sale or trade? __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.com __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Receivers
When using a receiver and a transceiver as a transmitter how do you switch the antenna off of the stand alone receiver when transmitting. I used to have a HQ180 that was a real good receiver with the transmitter section of a ts 2000 but I could not share the antenna and when using a separate rx antenna I was always afraid of burning out something in the receiver front end. I sold the hammarlund but I may buy a nc 300. I don't know how these receivers would compare. The Hammarlund was real good. wb5oxq __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Re: Transmitting Mica F2 -vs- G2 types
On 9/13/07, A.R.S. - WA5AM <[EMAIL PROTECTED]> wrote: I am getting ready to convert my Gates BC-1T to 75 and 160 and need some opinions on the loading cap. The 1T uses fixed capacitance and a variable inductor for loading. I need about 750 pF for the loading cap on 75 meters. The original loading caps (two in parallel) are G2 micas at 8000 vdc, however they are both 1500 pF. I have a type F2B that is 800 pF at 6000 vdc, that would be close enough, but I'm afraid it may not handle the current. The F2 is a much smaller unit than the G2's that are in there now. Anyone have any opinions on what the F2 can handle? Being on a higher freq. than original design I think the 6KV rating might be okay, but I'm still concerned with the current rating of the F2 as opposed to the type G2. Brian, You don't need another loading cap. Just rewire the two existing 1500 pF caps in series instead of parallel. That will give you 750 pF @ 16000 vdc. In mine, I ended up using two identical caps in series to arrive at the value I needed for the main plate tuning capacitor. Don k4kyv __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Help with ART-13
Hi to all. Maybe someone has had a similar problem and can give me a hand. My ART-13 works fine on the lower frequencies, below 6 Mcs. But above 6 Mcs, no grid drive. So, problem seems to be in the 2nd multiplier stage. I've done all the usual things, changed tubes, made resistance measurements, from the tube socket, etc.All was within specs. Also, someone suggested maybe a leaky coupling cap between the 1st and second multipliers. So, I replaced the cap by wiring a new one into an electrically equivalent position. No joy !! Before I attempt to remove the whole multiplier sub-assembly, does anyone have any thoughts or suggestions. Thanks ! 73, Lock W1ZD/7 __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
[AMRadio] Re: AMRadio Digest, Vol 44, Issue 41
From: "Rick Brashear" <[EMAIL PROTECTED]> Well, the problem with an RC circuit is it applies to the start up as well as the release and I need instantaneous start up or maybe I'm thing wrong. Rick A lot will depend on the resistance of the relay coil. You might try putting a capacitor in series with a resistor, and then put the whole thing in parallel across the relay coil. When you switch on the control voltage, current from the control voltage source will divide into two branches. Some of the current will immediately flow through the relay coil to turn on the relay. The rest of the current will flow through the resistor to charge the capacitor. But the resistor will limit the current surge to the capacitor, thus preventing the capacitor from pulling down the control voltage enough to delay the relay at start up. When you switch off the control voltage, the capacitor will discharge through the series resistor and relay coil. With the appropriate value of resistance, the discharge current should be enough to hold the relay for a split second after the control voltage is removed. First, try the circuit without the series resistor, and see if you can find a capacitor in the junkbox that produces somewhat more than sufficient delay in the release time. Now add just enough series resistance to avoid pulling down the control voltage when it is first applied. The relay will close instantly, but there will be a delay upon opening as the capacitor discharges. I sent you an e-mail with attachment for the article I wrote in ER a couple of years ago regarding a sequencing circuit I designed. It is more complex than what I described above. I still use it in my station to contral the T/R function. I didn't post the attachment here, because most e-mail reflectors won't accept attachments. Don, k4kyv __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Contactor
In the discussion on RC time constants to achieve the delay, I assumed DC relays. It wouldn't work directly with AC. But you can use a DC voltage source to activiate a DC "pilot" relay with the proper delay, using that pilot relay to switch the a.c. control voltage to the main contactor. Don k4kyv __ Our Main Website: http://www.amfone.net AMRadio mailing list List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Help: http://mailman.qth.net/mmfaq.html Post: mailto:AMRadio@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
