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Posts tagged lm386、

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 […]

ina217 preamp

ina217 preamp ina217 preamp using SSM2017, INA217 ina217 preamp ina217 preamp circuit diagram

Simple Spring Reverb circuit

Simple Spring Reverb circuit using NE5532

Theater and education

Theater and education Schematic Audio Theater and education Schematic Audio Bus Theater for education RUX C710, DVA-9861E, LCD TV Samsung 19 inch Theater and education Theater and education

stk ic

stk ic circuit using STK015 stk ic circuit using STK015 stk ic R1 …….. 10K R2 …….. 1K5 R3 …….. 47 R4 …….. 10 R5 …….. 220 C1 2 …… 1uF/50V C3 …….. 3.3uF/50V C4 …….. 47uF/25V C5 …….. 33uF/16V C6 …….. 47uF/10V C7 …….. 33uF/ 50V C8 …….. 1000uF/50V C9 …….. 473 IC …….. […]

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