[Elecraft] K1 Problem

K1 has a problem at J8 pin 7. Specs should be 1.6K to 1.9K. So far have found that J8 pin 7 to ground is zero. Tried reversing test leads and the same. P3 is jumpered pins 1 and 2. D15 anode to ground 195 ohms. D15 cathode to ground 98.6 K. R36 in circuit 1.96 K . R37 in circuit 1.96 K. R34 in

Re: [Elecraft] Hum Coupling

In a message dated 11/1/04 8:36:41 PM Eastern Standard Time, [EMAIL PROTECTED] writes: I cannot help but note that the venerable Kenwood TS-930S and TS-940S rigs had their big hunk of a power transformer mounted right next to the PLL section - and no hum problems were apparent, and it was

Re: [Elecraft] K1 Problem

Glenn wrote: K1 has a problem at J8 pin 7. Specs should be 1.6K to 1.9K. So far have found that J8 pin 7 to ground is zero Glenn, About the **only** thing that can be causing everything you describe is a simple unwanted solder bridge to ground (most likely from J8 pin 7 to pin 6) on the

[Elecraft] HFPack amp kit

Somebody asked about the HFPack amplifier kit. I built one and put it into a K1 blank case. A tight fit, but, it sure looked nice. I even used a PowerPole connector on the back. Ended up selling it, and got the KPA100. ;-) I pulled this ad off the eHam.net forum ... don't know the guy, but,

[Elecraft] PLL Reference Oscillator problem

I recently had the following problem with the PLL Reference Oscillator: When the circuit was oscillating I could see it on a scope at the source of Q19 and at the junction of RFC14 and R20. When it is oscillating (after pushing Band-) the voltage is about 1.3 volts (at RFC14 and R20) and

Re: [Elecraft] Signal Generator

If you are checking the gain of the whole K2 RF and IF strip less the modification of the IF gain by the effects of AGC, yes, it is possible to use a lower output from the signal generator. However if you need to go into troubleshooting in greater depth, the 270mV / 756mV pk-pk found at

[Elecraft] Bad CW

CW signal from my K2 sounds terrible ,key clicks and carrier is modulated with a multiplexing signal? Sounds like a purring cat. I tested SSB with the carrier suppressing pot fully CCW, now a clean tone. I excanged the control board (tnx PA2DW) no difference :-( Thanks in advance for any help.

Re: [Elecraft] Hum Coupling

Fraser Robertson wrote: Interesting - I had complaint on air recently of having a wide CW carrier when using a tube linear about two feet from the K2/100. I do NOT have the problem (and I've had people listen carefully for it) with an Alpha 86 at full power located 4 feet from the K2. For

Re: [Elecraft] Hum Coupling

Fraser, G4BJM wrote: Interesting - I had complaint on air recently of having a wide CW carrier when using a tube linear about two feet from the K2/100. == Exactly the problem. Rather than hum, it sounds like noise on the sidebands of the signal -- becoming less broad as the distance

Re: [Elecraft] Hum Coupling

Thanks for the mu metal info, Stuart. If Eric and Wayne don't come out with a mod for it, I'll try that. 73, de Earl, K6SE ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr.

[Elecraft] K6XX CW Tun Ind - Resistances and Voltages

Folks: A couple builders have had trouble getting their Tuning Indicators to function properly. I hope the following readings (taken from my working unit) will assist you in locating the problem NOTE - USE EXTREME CARE when probing the pins of the 2211 IC to avoid shorting adjacent pins

[Elecraft] Let me build a K2 for you.

Hi: I have built more than 70 K2's and all of the other Elecraft kits. Let me build your radio. My rates are very reasonable and you will receive a finished radio ready to play. Please email me at [EMAIL PROTECTED] Thank you 73 Alan - W1HYV ___

[Elecraft]K2 FM-ing and AM-ing on 80Meters problem solved

Hi Don, Can't find D12 or D14 on the T-R switch. Are these numbers correct ? 73 Bryan G3AKF ___ 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.):

Re: [Elecraft] Ham shop nr Washington DC

HRO is pretty far south of Dulles, expect to spend about an hour each way ... de John/W1RT Delaplane, VA (about 30 minutes from dulles) On Mon, 1 Nov 2004 17:25:04 -0800 (PST), Art - W6KY [EMAIL PROTECTED] wrote: Nick, How about Ham Radio Outlet in Woodbridge,VA... 14803 Build America Dr.

[Elecraft] 3rd K2 and BPL

Hello folks - Well, it's been a long while since I've been on this reflector but I am getting the fever to build again (this would be my 3rd K2). However, I find lately I am more reticent to spend money on equipment because of the eventual BPL threat effect. So I am curious to hear from any