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400 Watts Stereo Audio Amplifier Board DIY 2SC5200+2SA1943
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Onju Voice - AI assistant replacement to Google Nest Mini by @justLV
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For 6m AMer, duble super heterodyne receiver using LA1600 and NE612.For ssb ,you do on bfo switch on pcb.The details are my site, "RADIO KITS IN JA"schematics is here.info to make up , here.Sensitivi...
Double super heterodyne on 50MHz. RK-60
3429
2
4
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
A mini radio using LA1600 and 6AK5.One IFT(455khz) and one filter(murata).Tube 6AK5 is doing well as tone controller : bass,treble.This pcb is on sell ,here.making noteschematic
A mini radio,using LA1600 and 6AK5.
3284
1
2
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
Middle wave radio pcb.Using 12AU7 for tone-controller,radio IC is tda1072, and TA7638 as AF IC.
Broad cast radio, 12au7 and tda1072.
3392
1
0
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
This is AM/SSB radio board.For radio builder, product detector on board here. It is RK-63,using tda1083.The sensibility is great, can get 1uV signal as (s+n)/n=6dB on 7MHz(ssg).You will find the c...
Tda1083 am/ssb radio : product detector on board. : model RK-63
5055
1
3
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
For radio builder, easy to make a reflex radio. But high sensitivity like super heterodyne radio.It needs less 30 minute to build up.
reflex radio :high sensitivity
1833
1
1
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
For 6m AM ham radio builder. Good for airband(100 to 160mhz)http://takinx.dcnblog.jp/radio_kit_/2019/02/post-2.htmlThe details are my site, "RADIO KITS IN JA"
double superheterodyne receiver for 10m,6m and air-band
5556
2
3
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
http://takinx.dcnblog.jp/radio_kit_/2019/02/post-f418.htmlThe details are my site, "RADIO KITS IN JA"
MIDDLE WAVE RADIO, small radio
1922
1
3
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
For radio builder, mini-tx on middle-wave using ta7310.Small size and easy to make up. design:http://takinx.dcnblog.jp/radio_kit_/files/rk-98.pdf
Wireless-mic using ta7310
1874
3
1
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
LA1600 reciever for ssb and am .using 2sk192 as rf-amp .Device : LA1600.LM386,2SK192.2SC1815.The details are my site, "RADIO KITS IN JA"
LA1600 reciever :ssb and am .using 2sk192 as rf-amp . number R-54.
2623
0
3
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
IF 455kHz, you use this marker for adjusting 455kHz freq of radio.usin 455kc resonator.If you want 465kHz marker, you prepare 465kHz resonator.
455kHz marker for radio builder
1940
0
3
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
Using SANYO LA1600 as mini bc radio.size 32 x59. LA1600+ LM386 on the board.This board is on sale. Schematic
LA1600 mini radio
4895
4
4
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
For qrper, I have designd mini size transmitter pcb.1, crystal osc(vxo) , all HF.2, mic-compessor is on borad (TA2011S)3, dbm as sn169134, AM or DSB 5, M28S is a final device, able to drive 1W(100...
AM/DSB QRP(0.5W) Transmitter using mic compressor: dbm as SN16913 .
3093
1
5
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
Using panasonic AN829,mic-compressor. Max comp is over 30dB.Designed by RADIO KITS IN JA .http://takinx.dcnblog.jp/radio_kit_/an829/
mic-compressor ,AN829
2696
0
2
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
For radio builder, qrp am trx.TX :using SL1641 for am mod amd mic-compress ta2011s on board.RX:double super heterodyne******************************************************************************Tran...
50MHz am transceiver :TX input 1W / RX:double super heterodyne
2470
1
1
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
http://takinx.dcnblog.jp/radio_kit_/tda1072-mw/
TDA1072 mini radio for BC
4231
0
1
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
You know neophyte receiver on QSTham radio rx: mini,using ne612.The details are on my site, "RADIO KITS IN JA"
NE612: direrct conversion mini rx :like neophyte receiver on QST. RK-50.
4131
3
3
shuuichi takikawa
shuuichi takikawa
JAPAN
51
1
1
2
