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EL519 AMPLIFIER CONTROLLER

2 months ago 151
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Description

This little circuit is to provide the Relays switching from the PTT. The voltage is from the 6.3vac from the filament. This cirtcuit is also controlling the BIAS and Main relay

Documents

Sheet_1

PCB_EL519 AMPLIFIER CONTROLLER_2

BOM

ID Name Designator Footprint Quantity
1 100uF C1,C3 CAP-TH_BD8.0-P2.50-D1.0-FD 2
2 1000uF C2 CAP-TH_BD8.0-P2.50-D1.0-FD 1
3 220uFx12V C4,C5 CAP-D5.0XF2.0 2
4 1N4148 D1 DO-35_BD2.0-L4.0-P8.00-D0.5-FD 1
5 1N4148 D2,D3 DO-35 2
6 HEADER_2 J2 MY JST-XH-02-PACKAGE-LONG-PAD 1
7 BIAS RELAY K1 RELAY-TH_HTD2-DC12V-SHG 1
8 Ground for PTT PTT,STBY,TO_HV_RELAY,TO_MAIN_RELAY JST_B2B-PH_HEADER 4
9 Freq PWR,TX LED-TH_BD3.0-P2.54-FD 2
10 2N3906 Q1 TO92 1
11 10k R1,R2 AXIAL-0.4 2
12 1k R3,R4 AXIAL-0.4 2
13 SPARE SPARE CONN-TH_3P-P2.54_C41926 1
14 BIAS CIRCUIT TO_BIAS_CIRCUIT CONN-TH_3P-P2.54_C41926 1
15 LM7812 U1 TO 220 1

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