https://stream.echo6.co/videos/watch/e25c2425-e0de-4f86-89ed-fca7a777811d DIY599 PA500 by Oliver DL4KA the designer and manufacturer of this incredible portable ham radio amp. The PA500 from DIY599 is a 60 watt portable ham radio linear amplifier compatible with most QRP radios available today. It is a more portable alternative to the Elecraft KXPA100 ad Xiegu XPA125b. The power amplifier has a built-in antenna tuner, auto band switching, auto band selection, built-in low-pass filters, VOX PTT and can be custom configured over USB. Oliver and I discuss the portable HF amp design goals, future updates, component shortages and future projects from DIY599. 73 Julian oh8stn Video URL: https://youtu.be/k62Q-q9g1GY ______________________________________________________________________________- Want something interesting to dive in to while waiting for the next video? Visit my blog and website: https://oh8stn.org If you found this post useful, entertaining, inspiring, or educational, consider becoming a channel member, joining my patreon community, dropping a buck in the tip jar, or getting yourself some Anderson Powerpole gear on eBay. It also helps if you simply share this video with someone who will appreciate it. Become a YouTube channel member or join the patreon community, to get bonus videos and content before everyone else. Join the OH8STN Patreon community: http://www.patreon.com/oh8stn Become a YouTube channel member: https://oh8stn.net/3G8LaQl Add a few bucks to the kitty with PayPal: https://oh8stn.net/2ZGAEjy Support the channel while shopping on eBay: https://oh8stn.net/32DGxPB Disclosure: Some of the links above are affiliate links. This means that, at zero cost to you, I will earn an commission if you click through the link and finalize a purchase. Wed, 15 Apr 2026 09:44:34 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/e25c2425-e0de-4f86-89ed-fca7a777811d All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.