First Gold Dust Twins QSO!

My first QSO with the Gold Dust Twins was with Wayne, N7NG FINALLY – it was so ironic today – skip was longer than expected, and the RBN reverse beacon stations heard me – as far away as Uruguay, and very strong into the PNW, but I couldn’t get an answer. Luckily, my DX buddy Wayne, N7NG responded to a pleas I made on…

Gold Dust Twins: First QSO This Weekend?

The Gold Dust Twins I will get my twins on the air this weekend – on Monday I found the issue with the KWS-1 and will get it fixed and on the air this weekend. Even before I fix the problem I know what I can do to get it on the 40M SSB band – which is where I will try it out…

Monitoring the KWS-1

MFJ-267 Dummy Load / Wattmeter and Palstar PM-2000A Wattmeter The MFJ-267 (upper left) with my mod to add two micro muffin fans has been a really great piece of gear for my KWS-1 “adventure”. It stays cool when I tune the rig up – even when reaching 700 or 800 watts. I purchased a Drake W4 Wattmeter, but it arrived damaged – so I…

KWS-1 (and much other) Progress

I was able to get the KWS-1 to tune up at one high frequency on each band – and I measured 300 watts out on 75M. I also used the microphone to key the transmitter in SSB mode – but besides a key down carrier, I didn’t hear the mic voice. I’ll worry about that later – it could just be the way I…

Hello Grid Current in Tune Mode!

Just for fun, when I got home from work – I decided to tune the KWS-1 all over the crazy place, and sure enough – I did find what looks like “resonance points” where I could get Grid Current to display from zero to full scale on the Grid setting of the meter in Tune mode – and this is the “tune for maximum…

My KWS-1 and the Strategic Air Command SSB Tests

The Strategic Air Command, Gold Dust Twins and SSB in the 1950’s – Cold War Style . . . I purchased my KWS-1 from an antique radio shop in Sacramento called Radio Expo: http://www.sacramentoradioexpo.com/ The owner, Doug is a real nice guy, and even taught at Stanford for a while. He came across this transmitter just under a year ago when a ham who…

KWS-1 Report

I put about 6 hours into testing the KWS-1 yesterday and another 2 today I’ll record the important metrics here – because I can then compare these to others who have the KWS-1: VFO INJ Test point – 600 mv Peak to Peak and 3.25 mhz with the dial tuned to 3.5 mhz XTAL – on 40M – 4 mhz, which matches what Howard…

The KWS-1 Has Landed!

I now have RF Output! I am very, very pleased now that I am seeing RF output on my dummy load. The tuning procedure is something I need to get used to, but it is similar to tuning a tube linear amplifier manually. I need to analyze why I don’t see Grid Current on the built in meter and why I don’t see anything…

KWS-1 Debug: Day 1

L – R: Siglent 1202X-E, KWS-1 with MFJ-267, Fluke 117, Hickok 533A. Not shown – Heathkit IG-102 Signal Generator Nothing better on a gorgeous Spring day – (after an especially intense work week) to have some nice coffee and then to get crackin’ on getting the Collins KWS-1 transmitter back on the air. I’ll do it – damn it!   The simple, but effective…

KWS-1 Test Plan

I will take voltage readings from each “J” test jack on the top side of the chassis of the KWS-1 RF Deck. The learning will be when I test at each test jack, I will look at the schematic diagram and see what circuitry and what tubes might be involved. I do understand that even though I have tested all of my tubes in…