Arv, I think he meant that the silver thingy inside the fuse got short ... too short to reach both ends. 73 Jim N6OTQ Sent from my quenched-gap spark transmitter.

As we say in Texas, “Yeah buddy!!” Jim N6OTQ Sent from my quenched-gap spark transmitter.

There's a nifty device made from two 555 timers or one 556 timer called a "pulser tuner." You should be able to find the schematic online. It gives about a 40% duty cycle at something like 120 Hz... f

#ubitx-help #ubitxv6-help

>here are affordable toroid sources in the states, and from just dash 2, 6, 43 and maybe 61 you can make lots of inductors and transformers. See if w8diz partsandkits.com is still in >business. >Curt

#bitx20

So I ordered a bitx kit from HFSignals on Saturday. It was on my doorstep this afternoon. I used DHL -- but just four days from Hyderabad? Amazingly speedy. 73 Jim N6OTQ

I've found that not all hot-melt glue brands are equal. Gorilla brand glue sticks appear to be the best on the American market. They cost more but provide much better long-term adhesion than the cheap

Dean, your 30L-1 likes to see 50 watts or more to start to make good power. While it should amplify the output from a ubitx, it's a kilowatt-class amp with only 10 or 12 dB gain. So with the nominal 1

#ubitx #v5 #linear-amp

This is the word from ARRL. http://www.arrl.org/news/restraint-urged-in-response-to-2-meter-reallocation-proposal So don't get all bent out of shape on this issue. We (AKA the ARRL and all the western

I agree with Jerry -- the Harbor Fright DVMs are the ones I reach for first. Like Jerry, I do that because they are cheap crap and I don't care if I blow one up. Having set fire to the same Fluke 77 t

Allen saID: >Jim, do a web search for USB powered microscopes. Some are < $50 and amazingly useful. I have one that connects to PC has >built in LED lighting, allows you to snap pics, etc. Some also h

This is a little off-thread -- With the advent of SMDs everywhere -- does anybody know of a CHEAP thermal / IR camera for PCB inspection? I know that you can get a thermal /IR videocam for several hun

Jerry Sevick W2FMI (SK) didn't note that twisted or untwisted wires in transmission-line transformers made a difference, but since he usually wound his transformers with #14 or larger wire, and used c

#ubitx

Mike, How do the results from your inductance measurement jig compare to the (NLA) AADE LC2 inductance meter, or another popular and commonly used inductance meter? 73 Jim N6OTQ

Mike, it'd be great if you would post your instructions to the file section here. And -- maybe to other groups where the users have had issues with FTDI drivers and counterfeit chips. A few jobs back,

GDOs? I see a few at nearly every swapfest here in Central Texas, many in distressed condition, most missing one or more coils, and some at outrageously high prices. Also some for free. or next to it.

I don't think that's going to happen, given the 10% domestic postage increase here in the states last week. I acknowledge that we still have perhaps the lowest domestic postage rate in the western fir

Sarma, You may not be from around here. California has that exact same warning atn every gas station AND every hot tub in the state. I haven't been to California since 2003 but by now I think the warn

Ph.D. of what, the ARRL? I'm an ARRL life member and I usually get every year's Handbook -- and when it arrives, since I am a professional technical writer with -- oh, did I mention I'm also in QCWA w

#ubitx

Bill Cromwell wrote: "My first wild guess about that 9-pin D sub is the old serial port rig control. Most of us have been forced to abandon that for USB but some of us still have radios with those. Ha

Bill Watkins wrote: >I’ve had an idea for a “tablet-like” rig using the Nextion display to make this suitcase friendly. > >Anyone have any ideas about enclosure size, shape, manufacturer? A flush-fitt

#parts