Recent content by nomadradio

The "2S-" prefix is EIAJ, a japanese outfit,not JEDEC. Seems they're not so strict. 73

I abandoned the direct counter measurement of the vco output long ago. Once the three 7.8 MHz carrier frequencies are right, I tune in the signal generator with 1 kHz modulation, and a tone box with a 1 kHz crystal-controlled tone. When a sideband receiver is fine-tuned correctly, the pitch of...

Sunspot baby. Sure had a real good time. 73

Cool! Sure don't contemplate running out of that one. Thanks and 73

Do you have an alignment tool with the proper 1.5 mm tip on it? The old G-C number for that one was 9440. They show up on fleabay. Just don't try to use a metal screwdriver to adjust the small tuning cores. The entire problem may be alignment. The black ferrite cores (slugs) are brittle. If you...

Oops. Somebody said "HTX-10" and I reacted to the HTX100. Not helpful. Not the same radio. The "ten" may be a different story from the "hundred". Looked around online and found nothing. It looks like a unit marketed under a variety of product names. Mods.dk has no frequency expansion listed...

Not in that type radio. The mike amplifier already has a compressor chip and a clipper, both. There's no proper place to insert it into the audio path. The CP-1 was designed for the RCI-type mike circuits. 73

That radio's firmware doesn't even include LSB or AM. If you think it will magically acquire 11-meter coverage, feel free to try any snake oil you discover online. I predict it won't work. At least that's what we discovered first-hand decades ago. 73

For years I squinted at the 5-pin mike socket on RCI-built Cobra 148 radios. They just didn't look exactly right. Seemed like the pins were skinnier. Finally compared the original Uniden socket side-by-side. The one with the "PB" prefix is from a Uniden radio, the "EPT" is from a radio built by...

Way cool link! Thanks. 73

Over the years I have seen more damage from hits to the electric utility than to antennas. Antenna rotator control boxes are a favorite victim. The operator will know to unplug the radio and amplifier from the wall, but leaves the control box plugged in. A surge on the house wiring is looking...

Hey, it's open source. If the schematic filled your needs, so much the better. 73

When an official does something that's cleary wrong, or says something that's proveably false, you're left with one either/or question. Is it the result of dishonesty or ignorance. Does the party in question know full well what's said is nonsense, or is he clueless about it? I like to call this...

Or you could just take the path of least resistance and buy one ready to hook up to your relay and input jack. (Shameless plug department) https://www.ebay.com/itm/117320970152?mkcid=1&mkrid=711-53200-19255-0&siteid=0&campid=5336136228&customid=&toolid=10001&mkevt=1 It's set up for positive 12...

Not to throw any shade on our go-to guy Dan, I just rediscovered the factory data for this model. Scored it about 7 or more years ago. Just forgot. Not sure if it adds anything, but I prefer a factory diagram when I have the choice. Usually. Way too often it's just not available online...