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Posts tagged 1500,

Circuit diagram 75 Meter QRP SSB Transceiver

The 75 Meter QRP SSB Transceiver Theory of Operation 6-30-03 In general, the transceiver switches the 4-element 1500 ohm xtal BPF ends between the inputs and outputs of the two SA602s to reverse the signal flow for R/T operation. Since no IF amplifier is used in the design, 20 dB of additional receiver gain is […]

Audio Activated Switch circuit

Audio Activated Switch circuit using LMC7215, ZXM61N02F

op amps

op amps op amps circuit using KA22234 op amps op amps

Class B audio amplifier – 2500W

Class B audio amplifier – 2500W using R 220 R 47k R 2k2 R 4k7 R 8k2 Tr C945, Tip 41, Tip 42, 2SC2922, 2SA1216 Audio amplifier – 2500W Layout – 2500W     schematic diagram

Audio power amplifier circuit diagram using TA8200

Audio power amplifier circuit diagram using TA8200 Audio power amplifier for all tv

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