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All is good until I connect to the radio then the fuse goes pop. Test results, -ve to ground which will be good. +ve reads no short to ground so that is good. It is like the radio is pulling a crazy

check for a short in the power cable and attached connector while not plugged into the radio itself

Have you tested the power cord and g12 connector for a short circuit- without plugging it it?

Thank you everyone with this guidance. There is nothing touching the pins on the back but I will certainly keep this in mind. I'm going to do some small checks shortly (one being a 12v lamp in series

Hi I am looking for a TX-500. Sanctions mean that none will be coming out of Russia for a while, but there might be a used one available somewhere. 73 Andrew SM6MOJ

How come we both used green tape? 73 de M3KXZ

first thing i did with my units:

Check what John Byerly said.. Sounds like something shorted across the pins on the back. Hope that's all it is. Please keep up updated. 73 de M3KXZ

Exactly, what John said, others have had the same issue /g/Lab599/topic/88393532#1772

George, The pins on the back of the radio are magnetic, is it possible a piece of metal has attached itself to them and caused a short? I keep tape over them on my TX-500. wrote:

Hi all, Has anyone any advice? I think mine has died! Not used a lot but out portable today and was working good but suddenly stopped. It now blows the fuse every time I plug it into 12VDC supply.

One of my mentors told me to always start with the connector. Then the cable. He had done hundreds of service repairs for a commercial operation and taught me a lot. He nailed it again! It was the

Brilliant! I would love to purchase one of these too! Rich KQ9L

Hi the group. I discovered this morse padle especially made for the TX-500: http://www.cqdx.ru/ham/new-equipment/cw-500-key-for-lab599-discovery-hf-trcvr/ I haven't found on whose website it can be

Thanks Tim. You are right. I need to start from the beginning of the beginning. Bob NZ2Z

Not to sound like a jackass but I would start with the simple.? 1) make sure your input/output for your soundcard aren't plugged in wrong.? This has gotten me a few times.? If you have an external

Digi rig is the way to go! Sent from Proton Mail for iOS

Luke, I’m using a similar USB dongle as I have successfully with my KX2. But I cannot get RX or TX.

I've used a pi3 and 4 regularly with the TX-500.? Which sound card are you using coming from the tx-500?? I ask because I had one that had abour a 3" usb cable and that would not work at all.? I

"QST reviews are typically way more positive then they have any right to be. " This is typical of gear reviews by publications devoted to any given topic, be it Ham radio, camping, fishing, computing,