Vacuum Tubes Still Glow — Grayson KJ7UM on Thermatrons
►
Red Summit RF
About this video
“Vacuum Tubes Still Glow — Grayson KJ7UM on Thermatrons” is a ham radio video from the YouTube channel Red Summit RF, published on November 1, 2026. Red Summit RF covers DIY/Building, QRP and CW/Morse. The directory tracks 89 videos from this channel.
More from Red Summit RF
Woodchute Mountain SOTA
Telford Hamfest 2026. This rally was in conjunction with the GQRP Convention
Build Your Own Radio Without Spending Big — Charlie ZL2CTM
GQRP Convention 2026 Build-A-Thon
Wales SOTA - Ham Radio
Hiking in Flagstaff AZ
Related ham radio videos
Outdoor listening in the park ETM scan 2030 UTC Tecsun PL-520 on telescopic antenna
Checking out channel 38 LSB 27385 kHz Shortwave 11 meters on Tecsun PL-520 outdoors in the park
2000 UTC ETM scan with Tecsun PL-520 receiver outdoors in the park with low noise
With real warm temperatures time for a little radio in the park again today Tecsun PL-520
SDR Isolation is Hard (#1461)
