[Elecraft] KPA1500 not amplifying

I used my K3S driving my KPA1500 on Saturday during Makrothen and state QSO parties with no issues. I have the integration cable and RG-8X for the RF path. Sunday AM with the K3S set to 22 W, the KPA1500 was outputting 22 W more or less, not the 750 W I expected and got the day before. With

[Elecraft] Recycling replaced parts/boards?

Where I live in MO there are several local E-waste recyclers. Here is a link that may find you one in your area - https://allgreenrecycling.com/drop-off-locations/ Their website is not responsive to your Zip code, but web search finds - All Green Electronics Recycling - Washington,

[Elecraft] Re - Headphone jack impedance

Two more things to consider - a) how long is the lead on the prospective head phone? A lot of those for mobile phones and iPods, etc. are too short for my radio on the operating position table and my behind in the station chair. b) ambient noise cancelling - I like the $111 class Monoprice

Re: [Elecraft] Compare: K3 to Collins S-line receiver

Rob Sherwood’s tables show that the 75S3B has about the lowest MDS of any receiver ever made. The dancing 75S3B analog signal strength meter needle is more appealing to me than a row of LCD indicator segments. The 75S3B tuning rate is pretty high compared to the K3(s). Tubes can be found,

[Elecraft] KPA-1500 Fan Noise - measured (sort of)

My alpha 87a was purchased as a refurbished unit in 2012. It has an external fan on the rear of the chassis, and the floating blower inside the chassis. I had not until today realized that the fan on the back is the external fan recommended for RTTY use - it came that way and I don’t recall

Re: [Elecraft] KPA-1500 Fan Noise - measured (sort of)

My measurements were taken with a microphone about 2 feet from the front panels of the components. I wondered if W2PA’s alpha 89 was as quiet as he reported, so I thought I’d report on what I found - Ham shack in a finished (insulated drywall) room in a metal shed with equipment and