Re: [Elecraft] Strange Voltage check for Extended Power Supply Leads to Elecraft K3s

Your power supply isn’t regulating very well. Could be the power supply is having an issue. Or it is too small for the task. In tbe USA it is not uncommon for ham supplies to be somewhat overrated. For example many Astron 35A supplies are really the equivalent of a commercial 25A supply. > On

Re: [Elecraft] KPA500 270V Failure

YEP Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Moderator – North American QRO Group at Groups.IO. email: b...@wjschmidt.com From: Bruce Forsberg Sent: Saturday, July 24, 2021 11:10 PM To: b...@wjschmidt.com Cc:

Re: [Elecraft] KPA500 270V Failure

Thanks for the reply but in my case the problem is the voltage multiplier circuit on the power supply PCB. I just disconnected the HV (~70V) and 270V lines so they did not go anywhere and the 270V line still only measures 85V. Thanks Bruce, WB6IZG On Sat, Jul 24, 2021 at 8:36 PM Dr. William J.

Re: [Elecraft] KPA500 270V Failure

Here it is. From Elecraft technical support: Nominally: TP2= RX 13.1 TX 0.8 TP4= RX 3.9 TX 13 >From Rene Morris at Elecraft (great guy!). Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ PJ2/K9HZ Moderator – North American QRO Group at Groups.IO. email: 

Re: [Elecraft] KPA500 270V Failure

This happens a lot... search the forum for past msgs. It's not the HV power supply that is the problem. That power supply powers the PIN diodes for TR and RX... and it is more likely that the PIN diodes shot craps and shorted the power supply. There are two voltage Test Points "TP" on the board

[Elecraft] Strange Voltage check for Extended Power Supply Leads to Elecraft K3s

Thank you all for your help in reviewing my K3s transceiver in-line fuses, the fuse locations (they are near the power supply) and available voltage from my power supply for the K3s. *I have a strange voltage pattern*. The K3s manual says the voltage for the transceiver should be: 13.8 volts

[Elecraft] KPA500 270V Failure

Today when using my KPA500 I switched it into operate mode from standby and received an error message of 270V ERR. This is the first time I have seen this error. I partially disassembled the amplifier and measured the 270V voltage and it is 70V, which is close to what the HV voltage measured on

Re: [Elecraft] K2 CW - relay clicks

Dave, I am at a loss to tell you what is going on.  The T/R switching in the K2 is all electronic, no relays involved. If a K2/100, break it down to just the base K2 and see if it is in the base K2 or in the KPA100. If you have the K2/10, remove the top cover which contains the KAT2. If it

Re: [Elecraft] Off-topic: Musical composition

I always heard it was the French horn... Jim - WS6X - 1st undergraduate degree: music, performance, classic guitar - 2nd: engineering technology On Sat, Jul 24, 2021, 9:01 PM wrote: > Oh My... > I always thought it was a Viola and a Volkswagen... > Jack Spitznagel – KD4IZ > Science River LLC >

Re: [Elecraft] Off-topic: Musical composition

OK, I resisted as long as I could... Dan already gave the punchline for "What do you call someone who hangs out with musicians?" Yes, a drummer... But before we leave the oboe, "What is the better double reed instrument, the oboe or the bassoon?" The bassoon of course-it burns longer! Just

Re: [Elecraft] Off-topic: Musical composition

Oh My... I always thought it was a Viola and a Volkswagen... Jack Spitznagel – KD4IZ Science River LLC Biomedical Consulting Services -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Dan Presley Sent: Saturday, July 24, 2021 18:56 To: Terry Schieler Cc: K2

Re: [Elecraft] K3 DVR comes and goes?

Let us know what you find.   I have a K3S which was sent back to have the DVR firmware updated, not the update we can do, but the one that needs done at the repair center which now shows "dr 02.05".  Even after the repair many times my DVR will not work at all or locks in transmit.   If I

[Elecraft] Elecraft CW Net Announcement

Good Evening,    The huckleberries are getting eaten by the chickadees so I have to hustle.  Thimble berries are showing the effects of the heat wave during their flowering phase.  Few fruit are ripe in this dry weather.  The black raspberries are doing great though. I saw a chipmunk on a

[Elecraft] SSB Net for Sunday July 18, 2021

Here are the stations that checked in to the SSB Net on Sunday. Everyone is welcome regardless of type of radio. Sunday SSB Nets: 20m   1800Z  14.303.5 Alternate 14.310    40 m  1900Z    7.2802000Z  Zoom meeting contact Carl K8NU for the link80m   0100Z    3775 or there abouts WB9JNZ has

Re: [Elecraft] I Keep Getting Kicked Out

You need to reduce the sensitivity of your spam checker, or white list mail with an envelope sender of elecraft-boun...@mailman.qth.net. Or, if you mailbox is overflowing, you need to clear it more often, so mail doesn't get rejected because it is too full. It is just possible that receiving

Re: [Elecraft] Off-topic: Musical composition

Don’t get started on drummer jokes…or trombone or accordion or banjo . Seriously off topic! I will share my favorite at the risk of starting a thread…what’s the difference between an oboe and a Volkswagen? If you have to,really really have to…you can tune a Volkswagen 浪 Dan Presley

[Elecraft] K2 CW - relay clicks

Recently bought a K2 and all was working well (silent QSK) until I moved from one spot on the bench to another. It was powered up and one of the leads fell off the power supply connector, so this was a live power interruption. After this, there are relay clicks when sending CW. I did a

Re: [Elecraft] Off-topic: Musical composition

Dan's signature below is that of a musician. Always your phone number after your name. Someone may need a bassist. Back in my "professional" music days, someone would ask one of my band members... "how many in your band?". Their response"four musicians and a drummer". Need I add which

[Elecraft] Any update for KIO33B Kit

Just read July Newsletter and it is great to see that K4’s deliveries are increasing. I was wondering if there is any update on when those of us who place orders for items like the KIO3BUPKT_KIO3B Upgrade Kit for the K3, might expect delivery. Thanks, Bill - W0BBI Sent from my iPhone

Re: [Elecraft] Off-topic: Musical composition

As a ‘semi retired’ professional jazz musician (bassist-upright) I particularly appreciated the analogy. During this last field day I was running my KX3 and explaining to my logging assistants about pitch matching.The spot control does a good job,but sometimes I needed to tweak it to get in

[Elecraft] On-Topic: What can we design for you next?

While the K4 continues to evolve every day in both software and future options, our engineering team is always tinkering with new designs. To inform that process, we seek input from both customers and potential development partners. If you have an idea for a product, especially something cool

[Elecraft] Off-topic: Musical composition

When the latest Elecraft newsletter came out, a few people contacted me to ask if I'm a musician. (You'll have to read the newsletter to understand the question.) Short answer: Yes. If you'd like the long answer (and maybe a few sample compositions), feel free to contact me directly. 73,

[Elecraft] FS: Printed K3 Owner’s Manual Revision D9, Dec 7th 2010

Surplus to my needs. In nice three ring binder. $12.00 plus Media Mail postage. This was my printing cost.Email w...@near-fest.com 73, Michael, W1RC __ Elecraft mailing list Home: