![]() You can control lights, fans, AC system, computer, printer, amplifier, robots, garage door, security systems, motor-driven curtains, motorized window blinds, door locks, sprinklers, motorized projection screens and anything else you can think of.Į © 2002-2023. This circuit is a natural extension from the crystal radio and one-transistor radio circuits shown in the Radio section of this site. ![]() RF remote control provides long range of up to 200m / 650ft and can find many uses for controlling different devices, and it works even through the walls. 2 Transistor Radio (1 - 40 of 490 results) Price () Shipping All Sellers Vintage Stewart Solid State Transistor Radio, with Box and Ear Piece, Works, 4.5', 1970s B90-2-13 (1.9k) 44.09 48.99 (10 off) FREE shipping 1956 Philco All-Transistor Cordless Radio Model T-7-126 Serial No. This two transistor AM radio receiver uses the cheap and commonly available BC549B transistors to demodulate and amplify an AM radio signal. Having the ability to control various appliances inside or outside of your house wirelessly is a huge convenience, and can make your life much easier and fun. Board is supplied by 2-5V voltage and may be powered by a battery such as Lithium Ion cell, two AA cells, external power supply or USB power adapter.Ģ00m 4-Channel 433MHz Wireless RF Remote Control Arduino sketches are uploaded through any USB-Serial adapter connected to 6-PIN ICSP female header. It has 14 digital input/output pins (0-13) of which 6 can be used as PWM outputs and 6 analog inputs (A0-A5). My city has about 30 FM radio stations and other nearby cities all around me also have many FM radio stations. With only one tuned circuit then the selectivity must be awful unless you have only a couple of FM radio stations in your city. Board features 28-PIN DIP IC socket, user replaceable ATmega328 microcontroller flashed with Arduino bootloader, 16MHz crystal resonator and a reset switch. You forgot to post your Hartley super-regen receiver. Add to Favorites Vintage 1953 RCA Victor 'Forbes' 2-xf-91 AM FM Tube. Arduino Prototype uses all standard through-hole components for easy construction, two of which are hidden underneath IC socket. Vintage Sony TFM-7150W FM/AM 2 Bands Radio 10 Transistor Receiver 5 out of 5 stars (119) 42.74. It's small, power efficient, yet customizable through onboard 2 x 7 perfboard that can be used for connecting various sensors and connectors. It's breadboard compatible so it can be plugged into a breadboard for quick prototyping, and it has VCC & GND power pins available on both sides of PCB. Headphone amplifier is small enough to fit in Altoids tin box, and thanks to low power consumption may be supplied from a single 9V battery.Īrduino Prototype is a spectacular development board fully compatible with Arduino Pro. 8-DIP machined IC socket allows to swap OPA2134 with many other dual opamp chips such as OPA2132, OPA2227, OPA2228, dual OPA132, OPA627, etc. Block diagram of the AM-FM receiver in Fig. Note that the AM portion of the radio is identical to the lay out previously studied in Section 3. Unlike other ESR Meters that only measure ESR value this one measures capacitor's ESR value as well as its capacitance all at the same time.Īudiophile headphone amplifier kit includes high quality audio grade components such as Burr Brown OPA2134 opamp, ALPS volume control potentiometer, Ti TLE2426 rail splitter, Ultra-Low ESR 220uF/25V Panasonic FM filtering capacitors, High quality WIMA input and decoupling capacitors and Vishay Dale resistors. 4-2) shows the path the FM signal takes in dotted lines, and the AM signal flow in solid lines. It is an irreplaceable tool for troubleshooting and repairing electronic equipment by determining performance and health of electrolytic capacitors. The MK484 implements a TRF receiver by cascading three high-gain RF amplifiers followed by a transistor detector. This IC contains a 10 transistor TRF receiver circuit packaged in a three-pin TO-92 package. It also analyzes transistor's characteristics such as voltage and gain. Amplification at the IF and detection of the audio signal is handled by the MK484 (originally produced as the ZN414Z by GEC Plessey). Thus the first BPF reduces the range of voltages presented to the first amplifier and so reduces the chance that the amplifier will distort the desired signal.ESR Meter / Capacitance / Inductance / Transistor Tester KitĮSR Meter kit is an amazing multimeter that measures ESR values, capacitance (100pF - 20,000uF), inductance, resistance (0.1 Ohm - 20 MOhm), tests many different types of transistors such as NPN, PNP, FETs, MOSFETs, Thyristors, SCRs, Triacs and many types of diodes. \) block) to eliminate most of the interfering signals and noise.
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