Interesting assessment!
Just received this from a friend who knew that I (and many others) used Anderson Power Pole connectors quite a bit. Forewarned is forearmed! Take this FWIW. 73, Tom N0SS Subject: [Boatanchors] Anderson "Power Pole" connectors... >Just a WARNING!!!!! > >Do not try and substitute the "Chinese copies" of the Anderson Power >Pole connectors marketed by TYCO under the AMP name, for the "real >thing"!!! They fit together terribly, the contacts are inferior to >the Anderson ones. Maybe the "what's his name" CEO wanted more >profits to buy more $6500 shower curtains! > >I have been meaning to pass this along some time ago. I got a >sample package from TYCO for possible use for an "engineering >project" I was involved in. I was putting some of these on some ham >stuff a few days ago and didn't think I'd still had any of the >samples left! They LOOK identical, but the housings do not nest >together neatly like the originals. They are not compatible with the >originals. The dovetails in the nesting lugs are slightly >bigger. Only "ID" on them is the word "China" molded into the rear >edge (as opposed to Anderson on the originals). Also the contacts >mate with the Anderson connectors but not really reliably. > >Anyway, these things are crap! They "look" OK, but they are not >carefully made. Steer clear of them. I think Allied Electronics >has them in their line, and possibly others. DON'T USE THEM, YOU >WILL BE DISAPPOINTED AND FRUSTRATED! Stick to the original Anderson >Power Poles! > >73 > >Sandy W5TVW _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
One way to spot substandard items is the word "China" on them. But, I heard
that the USA Congress had taken back the law that requires the country of mfg to be printed on the item, true or not? Stands to reason that that Congress would want less info to come to consumers to protectr donors to Congressmen. But, today what is not made in China? Charles Harpole [hidden email] _________________________________________________________________ Need a break? Find your escape route with Live Search Maps. http://maps.live.com/default.aspx?ss=Restaurants~Hotels~Amusement%20Park&cp=33.832922~-117.915659&style=r&lvl=13&tilt=-90&dir=0&alt=-1000&scene=1118863&encType=1&FORM=MGAC01 _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Elecraft Radios.
On Jun 9, 2007, at 6:30 PM, Charles Harpole wrote: > One way to spot substandard items is the word "China" on them. > But, I heard that the USA Congress had taken back the law that > requires the country of mfg to be printed on the item, true or > not? Stands to reason that that Congress would want less info to > come to consumers to protectr donors to Congressmen. > > But, today what is not made in China? > > Charles Harpole > [hidden email] > > _________________________________________________________________ > Need a break? Find your escape route with Live Search Maps. http:// > maps.live.com/default.aspx?ss=Restaurants~Hotels~Amusement% > 20Park&cp=33.832922~-117.915659&style=r&lvl=13&tilt=-90&dir=0&alt=-100 > 0&scene=1118863&encType=1&FORM=MGAC01 > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com - Jack Brindle, W6FB ------------------------------------------------------------------------ --------------------- _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Let me correct that. Elecraft Radio kits.
On Jun 9, 2007, at 8:41 PM, Jack Brindle wrote: > Elecraft Radios. > > On Jun 9, 2007, at 6:30 PM, Charles Harpole wrote: > >> One way to spot substandard items is the word "China" on them. >> But, I heard that the USA Congress had taken back the law that >> requires the country of mfg to be printed on the item, true or >> not? Stands to reason that that Congress would want less info to >> come to consumers to protectr donors to Congressmen. >> >> But, today what is not made in China? >> >> Charles Harpole >> [hidden email] >> >> _________________________________________________________________ >> Need a break? Find your escape route with Live Search Maps. http:// >> maps.live.com/default.aspx?ss=Restaurants~Hotels~Amusement% >> 20Park&cp=33.832922~-117.915659&style=r&lvl=13&tilt=-90&dir=0&alt=-10 >> 00&scene=1118863&encType=1&FORM=MGAC01 >> >> _______________________________________________ >> Elecraft mailing list >> Post to: [hidden email] >> You must be a subscriber to post to the list. >> Subscriber Info (Addr. Change, sub, unsub etc.): >> http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/subscribers.htm >> Elecraft web page: http://www.elecraft.com > > - Jack Brindle, W6FB > ---------------------------------------------------------------------- > ----------------------- > > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com - Jack Brindle, W6FB ------------------------------------------------------------------------ --------------------- _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Just to clarify - from what I've read, the K3 (since it doesn't count as
a "kit" you're alluding to), is also entirely of US origin. Obviously, it's impossible to get all the individual components from the US, but the design, PCB manufacture as well as SMD-mounting, etc., are all done in California. Jack Brindle wrote: > Let me correct that. Elecraft Radio kits. > >>> But, today what is not made in China? _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
In reply to this post by Charly
On 6/10/07, Charles Harpole <[hidden email]> wrote:
> One way to spot substandard items is the word "China" on them. But, I heard > that the USA Congress had taken back the law that requires the country of > mfg to be printed on the item, true or not? Stands to reason that that > Congress would want less info to come to consumers to protectr donors to > Congressmen. That's no longer true. Many quality brands are now made in China, including a lot of your "Japanese" radio gear. If you want cheap, of course you can have it made in China, but if you want quality, they can do that, too. There are a lot of English engineers working full time out there now showing them how to do it. Unfortunately, by the time we're all out of work or employed in the tourist industry looking after the Chinese on their holidays, it will be too late to realise the folly of seeing no further than bigger profits and lower prices. -- Julian, G4ILO G4ILO's Shack: www.g4ilo.com K2 s/n: 392 K3 s/n: ??? _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Julian, G4ILO. K2 #392 K3 #222 KX3 #110
* G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html |
On Jun 10, 2007, at 8:10 AM, Julian G4ILO wrote:
> Unfortunately, by the time we're all out of work or employed in the > tourist industry looking after the Chinese on their holidays, it will > be too late to realise the folly of seeing no further than bigger > profits and lower prices. We live in a global economic market and the formula is simple: make a better product for the same price or the same quality product for a lower price. People of the western world for the most part have an over-inflated estimate of the value of their labor. Laborers in the US and the UK do not necessarily do a job that is enough better to justify a higher wage than someone in India or China. Want more money and/or more business? Learn to do something that has more value in the market. And, yes, it *is* about bigger profits and lower prices. But it is also about creating new things too. There are exceptional people who do the groundbreaking work. They cannot be replaced by a generic college graduate with a master's degree or a PhD no matter how 'learned' the latter are. These are not the people working for big companies. The goal is to find the few people who are in this creative class and work with them to create new things. Once the designs are well established you can turn them over to a generic PhD EE. BTW, the reason everyone here likes the Elecraft products is that Elecraft consists of a collection of that small group of people in that exceptional category, i.e. the people who really think and make new things. 73 de Brian, WB6RQN Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
In reply to this post by Julian, G4ILO
On 6/10/07, Brian Lloyd <[hidden email]> wrote:
> Want more money > and/or more business? Learn to do something that has more value in > the market. [snip] > > BTW, the reason everyone here likes the Elecraft products is that > Elecraft consists of a collection of that small group of people in > that exceptional category, i.e. the people who really think and make > new things. Unfortunately, the number of people employed by firms like Elecraft does equal the number of manufacturing jobs lost to China. Whilst some are fortunate enough to have the skills to create an Elecraft, there will always be many more who are capable of no more than working in the factory that would have made the products. -- Julian, G4ILO G4ILO's Shack: www.g4ilo.com K2 s/n: 392 K3 s/n: ??? _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Julian, G4ILO. K2 #392 K3 #222 KX3 #110
* G4ILO's Shack - http://www.g4ilo.com * KComm - http://www.g4ilo.com/kcomm.html * KTune - http://www.g4ilo.com/ktune.html |
In reply to this post by Brian Lloyd-6
I must chime in a bit. If workers were not pitted one against the
other, and if they received the same renumeration for their wage-power everywhere, then they would not be exploited. Some may rest content that their consumer products are produced in slave like conditions. I do not. The CEOs on the other hand, receive obscene wages for what they actually produce: very little or nothing. It's not that "Laborers in the US and the UK do not necessarily do a job that is enough better to justify a higher wage than someone in India or China", rather, it's that one group can be easily exploited and the other cannot. For the time being, anyway. Next on the neo-liberal agenda: outsourcing CEOs to Rwanda! Jozef WB2MIC Brian Lloyd wrote: > On Jun 10, 2007, at 8:10 AM, Julian G4ILO wrote: > >> Unfortunately, by the time we're all out of work or employed in the >> tourist industry looking after the Chinese on their holidays, it will >> be too late to realise the folly of seeing no further than bigger >> profits and lower prices. > > We live in a global economic market and the formula is simple: make a > better product for the same price or the same quality product for a > lower price. People of the western world for the most part have an > over-inflated estimate of the value of their labor. . Want more money > and/or more business? Learn to do something that has more value in the > market. > > And, yes, it *is* about bigger profits and lower prices. But it is > also about creating new things too. > > There are exceptional people who do the groundbreaking work. They > cannot be replaced by a generic college graduate with a master's > degree or a PhD no matter how 'learned' the latter are. These are not > the people working for big companies. The goal is to find the few > people who are in this creative class and work with them to create new > things. Once the designs are well established you can turn them over > to a generic PhD EE. > > BTW, the reason everyone here likes the Elecraft products is that > Elecraft consists of a collection of that small group of people in > that exceptional category, i.e. the people who really think and make > new things. > > 73 de Brian, WB6RQN > Brian Lloyd - brian HYPHEN wb6rqn AT lloyd DOT com > > > _______________________________________________ > Elecraft mailing list > Post to: [hidden email] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
In reply to this post by Julian, G4ILO
Colleagues,
Some time ago now I reported an issue with my K2 BFO being slightly out of range. The advice at the time was to get a new set of BFO crystals from Elecraft, which I did. The new results are as follows: Original Replacement BFO Hi Freq 4917.62 4917.63 must be >= 4916.3 OK BFO Lo Freq 4913.59 4913.49 must be <= 4912.7 BAD Range 4.03 4.14 must be >= 3.6 OK I have done the following: 1) Re-calibrated the 4MHz oscillator using a known accurate counter. 2) Re-checked the PLL reference oscillator range (within spec). 3) Re-checked the VCO (within spec) 4) Re-aligned the VCO (all bands within spec) 5) Checked all components for the correct (marked) values (all ok) 6) Checked R116 for any possible shorts of L33 7) Checked L33's leads, which appear to be OK Where I have fallen down on both sets of crystals is the lower BFO range. Where to go from here?? Thanks for the help, Ron -- Ron Hahn, EI2JP Grid Square: IO62TG Rose Hill Fists: 10883 Rosslare Strand QRP-ARCI: 12584 County Wexford IRELAND -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
In reply to this post by Julian, G4ILO
On Sun, 10 Jun 2007, Julian G4ILO wrote:
> > Unfortunately, the number of people employed by firms like Elecraft > does equal the number of manufacturing jobs lost to China. Whilst some > are fortunate enough to have the skills to create an Elecraft, there > will always be many more who are capable of no more than working in > the factory that would have made the products. But if we are really efficient we will: A. Ship many of the jobs offshore to bolster come other economy and increase our profits and/or B. Hire ilegals to do the jobs so that we can increase our profits....and since we are making more, we can pay more taxes, which of course can offset the costs of the services that the illegals get because they are underpaid. It's mind-boggling...I live in a very blue collar neighborhood. There are less and less jobs avaialable...more and more folks unemployed. More and more money leaving the country....more and more demands on the society, less and less people paying taxes...so of course the taxes increase. It's like a gigantic Ponzi Scheme. And here Elecraft does something silly like produce the K3s here (g) Thom,EIEIO k3hrn Email, Internet, Electronic Information Officer www.baltimorehon.com/ Home of the Baltimore Lexicon www.tlchost.net/hosting/ Web Hosting as low as 3.49/month _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
In reply to this post by Ron Hahn (EI2JP)
Ron,
The problem is that your crystals have a Q which is high and they are more difficult than the average to pull down in frequency. Your best recourse is to pad the crystals down in frequency a bit. You can first try a small capacitor from the junction of the crystals and C174 (U11 pin 6) to ground. My rule is that the capacitor should not exceed 20 pf. Too much capacity here can cause the BFO oscillation to act 'strangely'. If 20 pf will not lower the low frequency enough, then add a padder capacitor to both C174 and C173. 47 pf across C174 and 120 pf across C173 should do the job nicely and preserve the ratio of the two capacitors - the ratio is important to control the feedback for the oscillator circuit. 73, Don W3FPR Ron Hahn EI2JP wrote: > Colleagues, > > Some time ago now I reported an issue with my K2 BFO being slightly out > of range. The advice at the time was to get a new set of BFO crystals > from Elecraft, which I did. The new results are as follows: > Original Replacement > BFO Hi Freq 4917.62 4917.63 must be >= 4916.3 OK > BFO Lo Freq 4913.59 4913.49 must be <= 4912.7 BAD > Range 4.03 4.14 must be >= 3.6 OK > > I have done the following: > > 1) Re-calibrated the 4MHz oscillator using a known accurate counter. > > 2) Re-checked the PLL reference oscillator range (within spec). > > 3) Re-checked the VCO (within spec) > > 4) Re-aligned the VCO (all bands within spec) > > 5) Checked all components for the correct (marked) values (all ok) > > 6) Checked R116 for any possible shorts of L33 > > 7) Checked L33's leads, which appear to be OK > > > Where I have fallen down on both sets of crystals is the lower BFO > range. Where to go from here?? > > Thanks for the help, > > Ron Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 Don Wilhelm wrote: > Ron, > > The problem is that your crystals have a Q which is high and they are > more difficult than the average to pull down in frequency. > > Your best recourse is to pad the crystals down in frequency a bit. You > can first try a small capacitor from the junction of the crystals and > C174 (U11 pin 6) to ground. My rule is that the capacitor should not > exceed 20 pf. Too much capacity here can cause the BFO oscillation to > act 'strangely'. > > If 20 pf will not lower the low frequency enough, then add a padder > capacitor to both C174 and C173. 47 pf across C174 and 120 pf across > C173 should do the job nicely and preserve the ratio of the two > capacitors - the ratio is important to control the feedback for the > oscillator circuit. > > 73, > Don W3FPR > Don, Updated data below. No real progress with the padding. :-( A B 10pf 20pf 47/122pf BFO Hi 4917.62 4917.63 4917.11 4916.8 4917.39 BFO Lo 4913.59 4913.49 4913.3 4913.16 4913.02 Range 4.03 4.14 3.81 3.64 4.37 A is the original set of BFO crystals B is the replacement set of crystals Try 1: 10pf from pin 3 - 6 of U11 Try 2: 20pf from pin 3 - 6 of U11 Try 3: 47pf across C174, 122pf across C173 As you can see by the data padding the junction of the crystals only reduced the upper range. So I then tried the recommended padding across C173 and C174, and, as you can see, it still fails to bring the lower range into spec. Where to go from here? Thanks a mil for all the help. Ron - -- - -=-------------------------o---------------------------=- Ron Hahn, EI2JP | Grid Square: IO62TG Rose Hill | Fists: 10883 Rosslare Strand | QRP-ARCI: 12584 County Wexford, IRELAND | K2: 4922 __+__ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGgP4xyJCeYjZnfkQRAkf1AKCLMNWQAeDCdE2qq73TEWwRa9q7PACgpL21 k4Vjs2ml++Lh7AktxnYuDyw= =Elee -----END PGP SIGNATURE----- -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
Ron,
Yes, I see that your padding attempts were not successful, and the proper conclusion is that you have something other than the crystals that is incorrect. The BFO is similar to any VXO - and the components involved are the crystals, the inductor and the capacitors. In this case, the varactors D36 and D37 are the variable capacitors, so check to be certain they are the correct type - the body on the iSV149 is the smaller of the 2 varactor types used in the K2. If they are the correct type, check the voltage swing on the VBFO signal line (check at Control Board U10 pin 14). Enter CAL FCTR and tap BAND+ (the voltage should go to almost 8 volts), then tap BAND- and the voltage should be near zero volts. If those are correct, tap BAND+ again and check the voltage at RF Board RP6 pin 1 - it should be the same as the voltage at CB U10 pin 14, if not check soldering on all VBFO points. Also check the soldering at all pins of RF board RP6. If that did not correct the problem, then I would arbitrarily replace D37, D38 and L33. 73, Don W3FPR Ron Hahn (EI2JP) wrote: > > Don, > > Updated data below. No real progress with the padding. :-( > > A B 10pf 20pf 47/122pf > BFO Hi 4917.62 4917.63 4917.11 4916.8 4917.39 > BFO Lo 4913.59 4913.49 4913.3 4913.16 4913.02 > Range 4.03 4.14 3.81 3.64 4.37 > > A is the original set of BFO crystals > B is the replacement set of crystals > > Try 1: 10pf from pin 3 - 6 of U11 > Try 2: 20pf from pin 3 - 6 of U11 > Try 3: 47pf across C174, 122pf across C173 > > As you can see by the data padding the junction of the crystals only > reduced the upper range. > > So I then tried the recommended padding across C173 and C174, and, as > you can see, it still fails to bring the lower range into spec. > > Where to go from here? > _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
In reply to this post by Ron Hahn (EI2JP)
Next Saturday Sept 15th Eric presents the K3 in a presentation at
THE DX Convention W9DXCC....our 55th !!!!!! his presentation is among several others including "Scaffold Reef" oops Scarborough Reef.. ( just got my card today !!!) http://www.w9dxcc.com/ a BIG pile of prizes ...including Elecraft stuff.... A chance for the East, Mid & South Coast guys to get a close up and the full K3 story from Eric. see ya there.... or work us on 40 meters..... W9D Special Event Station Fri & Sat..!!!!!. bill ny9h _______________________________________________ Elecraft mailing list Post to: [hidden email] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com |
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