Consolidated Test Data For Hickok Model 533A-600A-605A Tube Testers V2.5 Update and CSV Data File

Updated October 15, 2018

I purchased a Hickok 800 tube tester at an estate sale in the Fall of 2017. In looking for documentation I found Stan Saeger’s “Consolidated Test Data For Hickok Model 533A-600A-605A Tube Testers” pdf file at http://saegerradio.com/. It’s my understanding the Hickok 600A tube test data also applies to the 800 and 800A models.

Continue reading

Repairing an Astron SS-25 and SS-30

I have two Astron SS-25M and two SS-30 switch mode power supplies (SMPS). A couple of years ago one of my SS-30 supplies quit with no voltage out during Field Day. Later one of my SS-25M supplies had the output voltage drop to 6 – 8 volts. About a year ago I took a look at the SS-25M to see if I could figure out what was wrong. After a little while with no success I gave up and put it away.

Continue reading

Replacing Elecraft K3 Push Button Encoders

For a couple of years I’ve had problems with the CMP/PWR encoder on my K3. When I needed to reduce power to use my amp or increase power back to 100 watts I’d have to twist and twist the power control. Recently there was a thread on the Elecraft reflector of someone else having problems with one of their encoders. That prompted me to finally replace my faulty encoder.

Continue reading

2015 Ford Powerstroke 6.7L Diesel Amateur Radio Interference (RFI)

I recently purchased a 2015 Ford SuperDuty with a 6.7L Powerstroke diesel. The day after I picked up the truck I headed to AR and SC to visit family but also operate in those state’s QSO parties. I installed my Scorpion SA-680 on the bottom part of my 5th wheel hitch and ran the coax and antenna control cables from the bed through the back doors. The only grounding I had time to do was a strap from the bed to the cab. I quickly found the fuel injectors are apparently tuned to 20m as the RFI into my Elecraft K3 was terrible. Amazingly all the other bands are fairly quiet.

Continue reading