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Oct 3, 2021

ARDF 80m

K174XA2 = TCA440 = A244D: datasheet

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Labels: 3.5MHz, 80m, ardf, csi, Fox, ham radio, hr, hunting, k174xa2, receiver, rx

2.4 GHz - radio beacon

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Labels: 2.4 GHz, home made, radio beacon, rf, tx

FM Tx 420-480MHz

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Labels: 420-480MHz, beginners, bug, fm, tx

Oct 2, 2021

Reverberator

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Labels: af, diagrams, ht8970, mic, reverberator, tl072

Oct 1, 2021

Three-band direct conversion receiver

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Labels: 14, 15, 20, 21, 40, 7, band, blu, cw, direct conversion, frequency, ham radio, hr, m, MHz, rf, rx, ssb, synchrodine

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Labels

0-15V 0.06-5A 0.5µV 0V0 0V2 1-15V 1.5V 10A 12AU7 12V 13.8V 14 144 MHz 14MHz 15 1500 Watt 15A 160m-10m 16V/15A ac 1922 2.4 GHz 20 20A 21 2m 2N3055 2N3904 2sc1971 2sc2053 3.5MHz 300Hz-3KHz 30Hz-300Hz 30KHz-300KHz 39d3005 3KHz-30KHz 40 40m 420-480MHz 5MHz 60`s 6W 7 7812 7912 80m 88-108 MHz A741 AAF address af am amp amplifier anti-mosquito ao ardf Ashhar Farhan ATMEGA32U4 audio frequency Audio-Visual automatic automation band banggood batteries baxandall BD139 beginners bird BITX blu board 3d boosters bug car car modulator charger charging chassis TV Christmas Computerized control crystal csi CV338H-T42-13В cw diagram diagrams digital direct conversion diy DKM-302 Dog download dsb duble side band e555 ECC83 ecc85 el84 electronic electronic tube electronics ELF (3Hz-30Hz) FI fm Fox free free diagram free diagrams frequency generator grey haier ham radio headphones hho HiFi high power hobby home made hr ht8970 hunting IRF510 IZ7ATH jbl k174xa2 KR1006VI1 lab layout LC meter lead lead-acid LED LF Lights linear link lm311 lm317 lm386 LM3909 LM3914 LM3915 LM555 m MHz mic Micro 40 DSB mj2955 monitor mono MSD3393LU multiband noise online store PA RF PA-2400 PCB photo pic16F628A picaxe-08 power Power Amplifier power supply printed wiring harness programming circuit ps psw1000 qrp radio radio beacon radio receiver Radiola real receiver Recommendation recycler repellent Repeller reverberator rf ROB025 rx sa612 schematic sealed SLF sound ssb superheterodyne synchrodine TAA661 TBA790K tcvr tetroda thyristor timer tl071 tl072 ton Tracking Transmitter transceiver Transmitter trioda Tube Tube Amplifiers tv tx ULF Ultrasonic Valve Amplifiers very accurate vintage VLF Voimaradio OY water white wu-meter Yamaha yo3cjl yo8rcd

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