01:10

6E5 magic eye tube emulation

01:02

Seven ST tubes and one mT tube 2Band Radio Demonstration

01:18

Tube Radio with Nixie Tube Frequency Counter

00:27

160m/80ｍ Dual Band Compact CW Transceiver Demonstration

03:48

Homebrew MW/SW band 6tubes Radio （6球自作真空管ラジオ）

00:32

80m band type of VN-L5 series reception demonstration

00:11

SSD1306Z I2C OLED drive test by STM32F103 Black Pill

01:21

VN-4002 outdoors

00:26

2200m band CW transmitter test

00:23

60m band skip MOD demonstration

00:49

VN4002 break-in adjustment functon demonstration

01:23

mcHF SDR QRP transceiver kit resceiving signal

03:24

VN4002 40m band QRP CW transceiver RX demonstration

01:02

UEC TESTを自作機で聴く

01:16

7MHz QRP(p) CW Transceiver demo

00:25

Homebrew 7MHz CW receiver demo

01:01

Si5351A VFO/BFO used for 40m band CW receiver

01:03

Si5351A and PIC24FV32KA302 VFO/ keyer control in progress

00:22

Keyer Mini-V2 Revision2 new Live Display function on firmware ver.2.60c

00:23

Keyer Mini-V2 Revision2 live display demo

02:07

JUMA TX-136 WSPR2 mode

00:51

All Chiba Contest at Katsuura city

02:27

New WSPR beacon adapator for JUMA TX-136 demo

00:31

Keyer Mini V2 Demo

00:45

PIC 16F1827 keyer demo

02:14

WSQ2 Demo

00:20

Strong Noise (by Power Line Communication?? ) part2

00:32

Strong Noise (by Power Line Communication?? ) part1

00:46

JP1ODJ CW beacon @ 135.8kHz

01:26

Software VLF receiver with PA0RDT Mini-Whip

03:47

PA0RDT Mini-Whip testing

00:43

JP1ODJ 2200ｍ CW Beacon

00:48

7MHz solderless breadboard reciever

00:12

DDS-VFO controller startup splash

02:09

Multi-Mode Beacon Keyer for JUMA TX-136

00:58

YouKits TJ2B 4bands SSB handheld transceiver