1/1/2023 0 Comments Alinco dr 119t service manual![]() ![]() The first local signal is generated between 122.3 MHz and 126.3 MHz by the VHF VCO, which consists of Q9 (2SK508) and varactor diodes D10, and D11 (both 1SV282) according to the receiving frequency. The amplified RF signal is passed through another RF amplifier Q18 (2SC5226) and band-pass filtered again by varactor-turned resonators L46, L49, L51 and D28, D29, D30 (all HVU359), then applied to the 1st mixer Q21 (3SK240) along with the first local signal from the PLL circuit. ![]() ![]() Incoming VHF signals are passed through a low-pass filter network, antenna switching diodes D20 (1SV268), D19 (1SS355) and D26 (DAN235E), and a high-pass filer network, and on to the RF amplifier Q19 (3SK131). Transistor, Diode, and LED Outline Drawings. ![]()
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