[Elecraft] OT: FS Tektronix 2246 100 Mhz, 4 Channel Oscilloscopes
There are occasional posts on the reflector asking about oscilloscopes and their availability. I just finished refurbishing 6 Tektronix 2246 Mod A oscilloscopes. The 2246 Mod A is a great combination of power and convenience at a reasonable price. The cursors and auto trigger and auto measurement functions are very nice. There are internal self-calibration routines for time and voltage measurement, plus these scopes also have an exceptionally bright and sharp trace. They are my favorite 100 Mhz scope. 3 of the refurbished scopes have been already been taken by members of our local club, but I may have three left so I'm posting it here before going to eBay in case someone would like them. These scopes have been cleaned, minor repairs made, and then checked and/or adjusted to meet or exceed Tek standards using Tek calibration tools (PG506/TG501/SG503). While the scopes were apart, I also repainted the cases with lacquer that was formulated to exactly match the standard Tek blue. I have loaded photographs at www.ashcraftfamily.net. Click on HWA Stuff and then you will see three sub-directories identified by model and serial number. There is a text file in each directory that explains the significance of the photographs and the prices. Prices vary because one is nearly perfect cosmetically, one is very good, but has one rear plastic standoff broken, and the third has two plastic standoff's broken. (Check the photos) Regards, Howard Ashcraft, W1WF K2/100; KX-1; K3/100 real soon now... * This communication, including any attachments, is confidential and may be protected by privilege. If you are not the intended recipient, any use, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by telephone or email, and permanently delete all copies, electronic or other, you may have. To ensure compliance with requirements imposed by the IRS, we inform you that any tax advice contained in this communication (including any attachments) was not intended or written to be used, and cannot be used, for the purpose of (i) avoiding penalties under the Internal Revenue Code or (ii) promoting, marketing or recommending to another party any transaction or matter addressed herein. The foregoing applies even if this notice is embedded in a message that is forwarded or attached. * ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] RE: FS:K2 plus extras
In preparation for my K3, I must unload my K2. K2 serial # 5334 KSB2 K160RX KNB2 KAF2 KPA100 KAT100 Finger Dimple KAT2 (In original top cover) KBT2 (in original top cover) Aftermarket headset with mic In great condition, with all manuals, boxes, leads etc etc. Has the mod for keying an amp from the base K2 and for a low level fixed audio out from the back panel. Shipped anywhere in the World via airmail for US$1200 (PayPal OK) Contact direct to [EMAIL PROTECTED] Cheers David, VK2NU No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.11.0/929 - Release Date: 31/07/2007 5:26 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] Looking for a used K2
Within a month I will be in the market for a used K2 with the following options: SSB, 160M, 20W internal ATU and a K6XX Visual Zero Beat Indicator (I will probably need to add this option myself). I would prefer a unit with a serial number above 3000 but will consider an older unit which is suitably priced to allow for upgrades. If you have or know of such a unit, please reply directly to me with description of options and desired price. Best Regards, Derek Brown, WF4I Pleasant Garden, NC ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Test Was: Re: [Elecraft] K2 SSB Problem
Test. I recieved a bounce notice from [EMAIL PROTECTED] [EMAIL PROTECTED] (See Below) and I appear to be receiving my Elecraft messages just fine. Go figure?! Vy 73 de Bert WA2SI - Original Message - From: [EMAIL PROTECTED] To: elecraft elecraft@mailman.qth.net Cc: w3fpr [EMAIL PROTECTED] Sent: Thursday, August 02, 2007 1:14 PM Subject: Re: [Elecraft] K2 SSB Problem Hi Don, I have found three resistors with a wrong value (R7, R9 and R4). I installed the resistors with the correct values but the problem is always present. The current increase step by step until it does catch up the value 4A and the radio gone on Hi current protection when I push PTT on the microphone. It is possible that the Q1 transistor is the cause of this problem? Thanks for your help '73, IZ1DUG Fabio -- Initial Header --- From : Don Wilhelm [EMAIL PROTECTED] To : [EMAIL PROTECTED] [EMAIL PROTECTED] Cc : Date : Sat, 28 Jul 2007 15:19:50 -0400 Subject : Re: [Elecraft] K2 SSB Problem Have you removed C167 from the RF Board? If you have removed it, there may be a problem with the ALC circuits on the KSB2 - check D1, D2 - look at the schematic and identify the components associated with Q1 and be certain all have the correct valus and are well soldered. 73, Don W3FPR [EMAIL PROTECTED] wrote: Hi Don thanks for answer. I checked diodes D3, D4, D5 and are correctly installed. I make some test after the check for supply you more informations. I turn on the K2 on SSB, I push the PTT, speak into microphone and I have : power output OK, the s-meter follows the voice but the current increase and arrived at Hi Cur limit (also without speak into the microphone). Push the PTT is sufficient for have a current absorbed but the wattmeter don´t show any power out. I hope that these additional information are sufficient to comprise the cause of this problem. Thanks for your help '73 de IZ1DUG Fabio -- Initial Header --- From : Don Wilhelm [EMAIL PROTECTED] To : [EMAIL PROTECTED] [EMAIL PROTECTED] Cc : elecraft elecraft@mailman.qth.net Date : Sat, 28 Jul 2007 08:17:10 -0400 Subject : Re: [Elecraft] K2 SSB Problem Fabio, I cannot be specific, but the most probable area causing that trouble is the area of Q2 and Q3 (those direct the BFO signal either to the balanced modulator in SSB mode or back to the RF board for CW) or the balanced modulator U5. Check carefully to be certain diodes D5, D4 and D3 are inserted in the proper direction and in the correct holes. 73, Don W3FPR [EMAIL PROTECTED] wrote: Hi, I just finished installing the KSB2 module on my K2 QRP version (full optional). I go to operate for the first time but when I push the PTT I get this problem: the current absorbed increases (the voltage decrease) until it exceeds the value 4 A (set at this value after some test) and the K2 switch off. The current and the voltage values reading on the K2 display and on the multimeter are the same. I have this problem on all band but only in SSB mode (K2 works correctly on CW mode with full power 10-13W). The problem is repeated every time when I push the PTT. I use the microphone Heil MH-2. Any suggestions? Good weekend Ciao, IZ1DUG, Fabio K2/QRP #1702 and K2/100 #5909 -- Scegli infostrada: ADSL gratis per tutta l´estate e telefoni senza canone Telecom http://click.libero.it/infostrada -- Leggi GRATIS le tue mail con il telefonino i-modeT di Wind http://i-mode.wind.it/ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.476 / Virus Database: 269.11.2/931 - Release Date: 8/1/2007 4:53 PM - Original Message - From: [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, August 03, 2007 12:18 AM Subject: confirm b411c4511996ec5a9bb285c12946855d65ffbb08 Your membership in the mailing list Elecraft has been disabled due to excessive bounces The last bounce received from you was dated 03-Aug-2007. You will not get any more messages from this list until you re-enable your membership. You will receive 3 more reminders like this before your membership in the list is deleted. To re-enable your membership, you can simply respond to this message (leaving the Subject: line intact), or visit the confirmation page at http://mailman.qth.net/mailman/confirm/elecraft/b411c4511996ec5a9bb285c12946855d65ffbb08 You can also visit your membership page at
[Elecraft]K2 Scan not staying on freq long enough
Today I tried scanning for the first time with surprising results. Instead of staying on a signal for about 25 seconds, my K2 stays on a signal for a random 3 to 18 seconds (usually less than 5 seconds). These CW stations heard by scanning are often very strong and over 15 wpm with no breaks in transmission expected. The random nature of the pause time with good signals is also a surprise. I setup the scanning with DSP on and off with no difference in results. The scan rate was also varied with no differences observed. Does the procedure you have followed give the 25 second result described in the manual? Any ideas of why the K2 #6155 with 2.04P firmware might act this way? 73 -- Arthur [EMAIL PROTECTED] [EMAIL PROTECTED] (files 5Mb) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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: [Elecraft] K2 Keying current?
Thanks for all the responses. I got this working pretty quickly yesterday. It took two iterations ... first time, I made the cable a bit too short in my effort to keep my desk neat - and had some of the connections off-by-one on the DB25 :-) The computer would key the radio but never unkey. I figured that out and added a foot of cable and N1MM logger is happy... 73 de chris K6DBG P.S. http://pages.cthome.net/n1mm/html/English/Interfacing.htm has schematics, among other places. And Tom N0SS's board looks very nice, but I wanted it today. I also wanted to put the isolation diodes in a (planned) box that will take computer, paddle and straight key... ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] K2 and RigTalk
I'm finishing my K2 and will need to interface it to my old shack computer for use with my logging software. My other radio is using the only existing serial port. Does anyone out there have experience in using RigTalk with the K2? Any gottchas? 73 de Clark ke4rq ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] OT: How The Mojo Gets In Other Products
While the Elecraft Mojo is well known, and the techniques used to incorporate it are well-guarded secrets, it's not unique. Here's a look at another company's process for their products: http://www.youtube.com/user/fowkes1968 73 de Jim, N2EY AOL now offers free email to everyone. Find out more about what's free from AOL at AOL.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] Re: OT: FS Tektronix 2246 100 Mhz, 4 Channel Oscilloscopes
Thanks for the responses, the oscilloscopes are all gone, unfortunately. There were far more requests than oscilloscopes. 73 Howard Ashcraft, W1WF * This communication, including any attachments, is confidential and may be protected by privilege. If you are not the intended recipient, any use, dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please immediately notify the sender by telephone or email, and permanently delete all copies, electronic or other, you may have. To ensure compliance with requirements imposed by the IRS, we inform you that any tax advice contained in this communication (including any attachments) was not intended or written to be used, and cannot be used, for the purpose of (i) avoiding penalties under the Internal Revenue Code or (ii) promoting, marketing or recommending to another party any transaction or matter addressed herein. The foregoing applies even if this notice is embedded in a message that is forwarded or attached. * ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] Reflector test
Verifying if the reflector has lost it, again... -- 73, Brian Broggie - W6FVI Elecraft Parts ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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: [Elecraft] Reflector test
On Fri, 3 Aug 2007, Brian Broggie wrote: Verifying if the reflector has lost it, again... Lost what? It's mind? What was the problem? 73 - k3hrn Thom,EIEIO 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: Elecraft@mailman.qth.net 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] K3 Button Function
Can anyone, besides the K3 finalization team, explain the function of the K3 AFX button? Thank you. Ray K3RIZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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: [Elecraft] K3 Button Function
Can anyone, besides the K3 finalization team, explain the function of the K3 AFX button? AFX is the Audio Effects function. It is not finalized yet, but envisioned to control stereo AF output, binaural audio, panning, mixing, etc. 73, Ed - W0YK P.S. As a K3 field tester, does that make me part of the K3 finalization team and therefore disqualified from answering the question? ;) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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] K3 Button Function
Ed - W0YK P.S. As a K3 field tester, does that make me part of the K3 finalization team and therefore disqualified from answering the question? ;) Thank you Ed. Didn't want to incur any wrath for slowing down the team. :^) As I learn about the K3, I am amazed at the thought that went into the applications and ergonomics. You and the entire design/test team sure have done your homework! When the manual becomes available, I'm sure that I'll learn enough to hit the ground running when my rig arrives. Thank you again. Ray K3RIZ ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
