4-CHANNEL TRANSCEIVER 433.92 MHz encoder

diagram of the transmitter

1Circuit       UM3750
UM86409
MM53200N
1Transistor    ZTX321 ou MPSH10
2N2369A ou
BSX20 ou
BF494 ou
BF254
7 Diodes       1N4148
1 led 2mm
Capacitors     1x 47 (47pF)
1x 3.3 (3.3pF)
1x 3 (3pF) ou 2 x 1.5 pF en parallèle
1x 100 nf (102 )
1 Condensateur ajustable bleu 1.5 à 5 pf (petit bleu)
Resistors      1* 22 koh rouge/rouge/orange
1* 1M marr/noir/vert
1 inductance   1LuH marr/noir/vert
4 Plungers     Raising push rod with cyano and plastic.
Piercing the casing.

PCB 433.68 Mhz




RECEIVER 4 channel
PCB 433.68 Mhz 4 channel receiver


RECEIVER 2 channel
PCB 433.68 Mhz 2 channel receiver


4 supports circuit 18 tabs
4 circuits UM3750
1 Regulator 78L05
AC-1 Receiver RX (receiver AM to superregeneration AUREL)
1 terminal weld 12 screw terminals
2 2 terminals solder terminals
4 relays miniature FRS1 12 V 15 x 10 x11 mm pitch spacing 2.54 10.16 7.62
8 transistors BC337-20
Diodes:
8 diodes IN4007
5 LEDs 2 mm
1 switch 10 positions
Non-polarized capacitors.
4 of p47J (47pF)
4, p104 (100nF)
1Condensateur pola 100uf/63V
1Condensateur pola 10uf/50V
Resistor:
9 x 1/4W 5.6KOhm
2 x 1/4W 10Kohm
1 x 1/4W 1MOhm
1 x 1/2w 390Ohm
2 x 1/4W 10Kohm
8 x 1/4W 3.3KOhm





Diagram of receiver