Component ID
Locked
 
|
HI
I am inventorying my k2 kit and have a question. On the control board I should have a LM380N-8 audio amp. I don't have that, but do have a 25LC320/1fv0526. They are probably the same, but would rather be sure than sorry! Thanks Scott N5SM _______________________________________________ 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 |
|
|
Hmmm, I did a quick Google search on 25LC320. It said it was an serial
SPI bus EEPROM. Talk about knock me over. I'm in the middle of configuring software to talk to ... a SPI bus EEPROM. If google is right, then the LM380N and 25LC320 are NOT the same thing ... - Keith "whatdoiknowi'mjustasoftwareguy" N1AS - -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of [hidden email] Sent: Wednesday, November 15, 2006 11:44 AM To: [hidden email] Subject: [Elecraft] Component ID HI I am inventorying my k2 kit and have a question. On the control board I should have a LM380N-8 audio amp. I don't have that, but do have a 25LC320/1fv0526. They are probably the same, but would rather be sure than sorry! Thanks Scott N5SM _______________________________________________ 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 wsm-3
Scott,
On the control board, U9 is the LM380 which you should have, and U7 is the 25LC320 serial EEPROM which you ALSO should have. So it sounds like you might be missing the LM380, eh? Well, based on my experience, you should go through everything again with a stronger source of illumination before calling Elecraft to ask to have a missing part replaced. :) Good luck! [hidden email] wrote: > HI > > I am inventorying my k2 kit and have a question. > On the control board I should have a LM380N-8 audio amp. > I don't have that, but do have a 25LC320/1fv0526. > They are probably the same, but would rather be sure than > sorry! > Thanks > Scott N5SM > Marshall Jose, WA3VPZ _______________________________________________ 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 wsm-3
Scott,
You will need the 25LC320 for the U7 slot - an LM380N-8 must go into U9. Check all the 8 pin devices on the black foam again - Christine rarely makes a packing mistake. 73, Don W3FPR > -----Original Message----- > > I am inventorying my k2 kit and have a question. > On the control board I should have a LM380N-8 audio amp. > I don't have that, but do have a 25LC320/1fv0526. > They are probably the same, but would rather be sure than > sorry! > Thanks > Scott N5SM > _______________________________________________ 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 wsm-3
Don,
Your advice to re-inventory is correct. But Christine has been known to have had a bad day. In my last K2 (K2, KSB2, KIO2, KNB2, K60XV,K160RX, KAF2, KAT2, KBT2, EC2, KPA100, KAT100) I have been short shipped THREE (3) parts. As the late Carl Sagen would say, "Billions and billions of parts." It sure seemed that way. Whew we are talking five nines plus! That is phenominal. Eric and Wayne need to add a web page to show us who some of the people who make the magic/mojo happen. But you bet check the foam, both sides. Even Vegas wouldn't bet, much less put a line on Christine. Joe N9JR ----- Original Message ---- From: Don Wilhelm <[hidden email]> To: [hidden email]; [hidden email] Sent: Wednesday, November 15, 2006 11:40:43 AM Subject: RE: [Elecraft] Component ID Scott, You will need the 25LC320 for the U7 slot - an LM380N-8 must go into U9. Check all the 8 pin devices on the black foam again - Christine rarely makes a packing mistake. 73, Don W3FPR _______________________________________________ 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 |
|
|
Hi All,
I'm sure this has been covered before, but for hiking and backpacking is it a choice between the KX1 and K1, is one better then the other ? Or is it a nocontest and that the KX1 is the winner because of being smaller and lighter ? What about portable antenna's - a long wire ? or is their some thing as almost simple but better ? Cheaper ? Bob KC8IPQ _______________________________________________ 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 |
|
|
Hi Bob - The KX1 gets the nod here. But for locations that I access by
car, I like my K1 better. For that reason, I sold my KX1 and built another K1. I sold my first K1 when I built my KX1. I don't take a rig hiking much, due to we usually have a quick turn around time, and head back. If I want a hiking rig, I will use an SST. The K1 is a much more pleasant rig to use and has a performance advantage. There should be much more in the archives. Rick Dettinger K7MW ========================================= > Hi All, > > I'm sure this has been covered before, but for hiking and backpacking is it > a choice between the KX1 and K1, is one better then the other ? Or is it a > nocontest and that the KX1 is > the winner because of being smaller and lighter ? > > What about portable antenna's - a long wire ? or is their some thing as > almost simple but better ? Cheaper ? > > Bob KC8IPQ _______________________________________________ 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 |
|
|
Oh, please tell me more. For home use, which rig has a better receiver?
Which one sounds better? Does one have the advantage over the other if you're NOT leaving home? - Keith N1AS - - K2 5411 - -----Original Message----- The K1 is a much more pleasant rig to use and has a performance advantage. Rick Dettinger K7MW _______________________________________________ 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 |
|
|
Oh, please tell me more. For home use, which rig has a better receiver? Which one sounds better? Does one have the advantage over the other if you're NOT leaving home? - Keith N1AS - - K2 5411 - =============================================== The K1 has the better receiver. It also sounds better. Some say that the K1 sounds better than the K2. The KX1 has a much wider tuning range. You can even use it for SWLing. It can be used crossmode in SSB bands. You can use it in bed, as the designer does. It can be used in the dark or by sight impaired, as it will output all necessary info via morse code. I think in all other respects, the K1 is better at home or on car trips. The ATU option in the K1 will tune more antennas. KE6US has more info and opinions on his website. (See QRZ.com) The K1 has up to twice the output of the KX1. I would like an RF gain control and have even considered sacraficing the AF gain control to add one but that is just my operating style. Rick Dettinger K7MW _______________________________________________ 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 |
RE: RF vs. AF gain (was: KX1 vs K1)
|
|
> I would like an RF gain control and have even considered sacraficing
> the AF gain control to add one but that is just my operating style. Forgive me for asking a question below my license class, but this is something I've never figured out: Under what circumstances does an RF Gain control do me any good? I always operate my K2 with RF Gain fully clockwise and use AF Gain to control volume. I've monkeyed with RF Gain but it sounds like a second volume control to me. Craig NZ0R _______________________________________________ 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 |
Re: RF vs. AF gain (was: KX1 vs K1)
|
|
> Forgive me for asking a question below my license class, but this is > something I've never figured out: Under what circumstances does an RF Gain > control do me any good? I always operate my K2 with RF Gain fully clockwise > and use AF Gain to control volume. I've monkeyed with RF Gain but it sounds > like a second volume control to me. > > Craig > NZ0R ======================================= My thinking is that it is the RF siginals that change strength so that is where I like to control the gain. This keeps the overall gain distribution constant. Keeping the level of the signals low prevents overloading the IF filter and allows using the steepest part of the skirts to best advantage. You also avoid the need to use the attenuator control to prevent strong signal overload. These advantages are only fully utilized with a true RF gain control. Most modern rigs use IF gain post filter. A possible disadvantage if this is overdone is a degraded siginal to noise ratio, probably only a problem on higher bands without much QRN. And, your S meter won't work right. The fact that you don't notice a difference between AF and RF gain controls is due to the K2 being well designed, with great siginal handling capabilities. Rick Dettinger K7MW _______________________________________________ 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 |
RE: RF vs. AF gain (was: KX1 vs K1)
|
|
In reply to this post by Craig Rairdin
Craig,
The RF Gain control is a device that can be effectively used when you encounter a mixture of strong and weak signals in the receiver passband. With the RF Gain at its full (normal) position, the strong signals will activate the AGC and the weak signals will be reduced too and may not be heard. If the RF gain is reduced, the AGC action is not as strong and the weak signals may be more readable. Yes, the S-meter will not be correct if the RF Gain is reduced, but if you are trying to listen to weak signals, the reading of the S-meter is not really relevant, you just want to hear the weak signal. Strange as it may seem, when listening for weak signals, reducing the RF Gain and increasing the AF Gain may work wonders. Many old-timers will run the AF Gain at the full CW position and control the volume level with the RF Gain - we learned that with older receivers, but then the objective was to limit the signal into the detector so the BFO would not be overdriven (AGC was turned off) - with the advent of product detectors, the reason to operate that way changed, but is still an effective technique - one can leave the AGC on to help protect the ears from the really loud ones. 73, Don W3FPR > -----Original Message----- > Forgive me for asking a question below my license class, but this is > something I've never figured out: Under what circumstances does an RF Gain > control do me any good? I always operate my K2 with RF Gain fully > clockwise > and use AF Gain to control volume. I've monkeyed with RF Gain but > it sounds > like a second volume control to me. > > Craig > NZ0R > _______________________________________________ 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 |
RE: RF vs. AF gain (was: KX1 vs K1)
|
|
----- Don W3FPR said ----- ... one can leave the AGC on to help protect the ears from the really loud ones. ------------------------- THIS, I think, is the best of both worlds. The AGC is, after all, just an automatic way to adjust the RF gain. I prefer to use a mix of the two. Turn the RF gain down until the background noise is just a bit above the receiver noise floor and then let the AGC do the rest from there. If I'm rag chewing with a strong station, I'll turn the RF gain down so the AGC is just kicking into action on the weak part of his signal. Then, I get the benefit of AGC handling the QSBs of this signal (whether fast or slow) plus I get the nice high S/N ratio that you get with turning the RF gain down. RF gain control is ESPECIALLY useful in a rig with an audio derived AGC. Back the RF gain down and most of the initial pop of a strong signal disappears. When I had my K1 (which convinced me to get a K2 BTW) I did miss the RF gain control. And with my K2 in the process of becoming a K2/100, I'm beginning to think about getting a K1. Clearly the disease continues :-) And, yes, I believe the K1 sounds even better than the K2. 73! - Keith N1AS - - K2 5411 - _______________________________________________ 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 Bob P-2
The mail archive provided by AC6RM is a great resource with a great search
facility. Try it by going to http://www.ac6rm.net/mailarchive/html/elecraft-list/ And do a search on 'K1 and Kx1 compared' The first hit by Bruce Prior N7RR is comprehensive and Wayne has added an extra aspect in the second hit on the list. 73, Nigel ZL2DF _______________________________________________ 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 Darwin, Keith
Hi All, I purchased a K1 some time ago on Ebay and it works fine. It has 2 Filter Boards and the antenna tuner. The two band board is 30 and 40 meters, and I want 40 and 80 meters. Whats the easyest fix ? I'm not real good with delicate work, so I need to trade or have some one make the modifications. Any suggestions .. Thanks, Bob _______________________________________________ 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 |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |