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Aiphone intercom systems – 60W Intercom circuit Using Transformer

Aiphone intercom systems - 60W Intercom circuit Using Transformer

Aiphone intercom systems - 60W Intercom circuit Using Transformer

Parts

R1 ………………………… 5K6
R2,5,9 …………………….. 100
R3 ………………………… 47K
R4 ………………………… 470K
R6 ………………………… 12K
R7 ………………………… 68K
R8 ………………………… 33
R10 ……………………….. 56
R11 ……………………….. 1K5
R12,13 …………………….. 1K
R14,15 …………………….. 0,22/ 5W
R16 ……………………….. 3K

C1,4,5 …………………….. 104pF
C2,3 ………………………. 47uF/16V
C6 ………………………… 10uF/16V
C7 ………………………… 50pF
C8,9 ………………………. 100uF/16V
C10 ……………………….. 1uF/16V
C11 ……………………….. 470pF
C12,12 …………………….. 470uF/16V
C14,15,17 ………………….. 103pF
C16 ……………………….. 2200uF/16V
D1,2,3 …………………….. 1N 4002
Vr ………………………… 1K
Pot.1……… ……………… 5K
Pot.2…….. ………………. 50k
T1 ………………………… IT 191
T2 ………………………… OT 426
Relay 12V DC-2
Tr1 ……………………….. C458
Tr2 ……………………….. C1214
Tr3,4 ……………………… D313
Tr5 ……………………….. 2N3055

Aiphone intercom systems – 60W Intercom circuit Using Transformer

When using the transformer, the speakers must be wired in parallel. IP Intercom and paging systems can be designed with any combination of intercom