Direct Conversion Radio Receiver Using the Diode Half-Ring Single Balanced Product Detector
Describes briefly the working of a single balanced diode half-ring product detector and demonstrates how to construct a direct conversion radio receiver. Two diodes are used along with a broadband transformer to construct a singly balanced product detector. The diodes used here are fast switching diodes with similar forward resistance. The broadband transformer is wound using #28 or #30 SWG enameled copper wire over a ferrite toroid core or balun core. There is adequate port to port isolation between the three ports. RF signal from the antenna and local oscillator signal from the VFO are given to the two RF input ports. The detected audio is derived from the output port of the diode ring mixer. The audio that is obtained is filtered using a low pass audio filter and amplified using an audio amplifier.
#diode #radiofrequency #mixer #RFmixer
Below are the full buying links of some of the best electronics tools that I have found on Indian online sites such as Amazon and Flipkart with good customer reviews. You can try those too.
https://amateurradiouniverse.blogspot.com/p/full-electronics-tool-list.html
Soldering Iron:
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Techtest 60W 220V Temperature Adjustable Electric Welding Solder Soldering Iron Rework Station Handle Heat Pencil Tool -Blue (Soldering Iron With Bits)
https://amzn.to/3CmKtT2
REHTRAD 80 Watts Temperature Adjustment Soldering Iron,Micro Soldering Iron With Digital Display Screen,Anti-Oxidation Soldering Iron Bit,Temperature Range200-500°c Suitable for Precise Temperature Control
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Soldron 25 Watt Soldering Iron
https://amzn.to/3eg0Etl
Electronic spices Heavy Duty 30W Pencil Type soldering Iron Copper Tip With long PVC Wire 230V
https://amzn.to/3fQYwbZ
Corslet Soldering Iron 60w with Bits, Welding Soldering Iron Kit, Soldering Machine Kit, 60 W Temperature Controlled (Round Tip)
https://extp.in/YUZiee
Hillgrove Electronic Repairing 3in1 Mobile Soldering Iron Equipment Tool Machine Combo Kit Set with Flux Paste and Wire 25 W Simple (Flat Tip)
https://extp.in/JJ7FwC
W Wadro Beginners Complete 4 in 1 25W Soldering Iron Kit with 5 Meter Solder Wire|Solder Paste & Desolder Wick 25 W Simple (Flat Tip)
https://extp.in/1vnIku
Soldering Kit:
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APTECH DEALS.COM – deals for you… Intermediate 7 in 1 Soldering Kit
https://amzn.to/3rHxjuV
Fadman Electric Soldering Iron Kit 25W (Multicolour) (7in1)
https://amzn.to/3yto5Gq
Hillgrove 10in1 Basic 25W Soldering Iron Kit with 5 Meter Solder Wire, Cutter, Stand, Flux, Bit, Tape, Tester, Tweezer, Wick 25 W Simple (Flat, Pointed Tip)
https://extp.in/FkNEjU
APTECHDEALS Beginners 6 in 1 Economy Soldering iron Kit/electric Soldering iron kit 7in1 Beginners 6 in 1 Economy Soldering iron Kit/electric Soldering iron kit 7in1 25 W Simple (Flat Tip)
https://extp.in/Kj5oBq
FADMAN Basic Complete Part Type-12 Soldering Iron Kit | Wire Cutter | Stand | Solder Wire | Tweezer | Soldering Flux | Soldering Bit | Tester| Desoldering Pump | Magnifying Glass | Electric Tape | 2IN1 Screw Driver | Soldering Iron 25 W Simple (Flat Tip)
https://extp.in/hKsnWb
Soldering Wire:
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Hillgrove 15 Meter Tin-Lead Alloy Soldering Wire (Quick Melt and Rapid Solidification with Good Tensile Strength) for and above 0 W Simple (Flat Tip)
https://amzn.to/3T0f4gc
Electronic Spices 250G BIG Tin Lead Rosin Core Soldering Iron Wire Reel
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Electronic Spices 30g Tin Lead Rosin Core Soldering Iron Wire Reel 25 W Temperature Controlled (Round Tip)
https://extp.in/Kz05mR
Hillgrove 10 Meter Tin-Lead Alloy Soldering Wire (Quick Melt and Rapid Solidification with Good Tensile Strength) for and above 0 W Simple (Flat Tip)
https://extp.in/uF5axC
Soldering Flux Paste:
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Electronic spices Quickfix Solder Paste Flux brown rosin-rich paste Pack Of 2, (50+50=100gram)
https://amzn.to/3eja73e
Charvik Pack of 5 Solder Soldering Paste 10g Flux Grease
https://amzn.to/3SM2j9e
Electronic Spices Quickfix Solder Paste Flux brown rosin-rich paste 0 W Temperature Controlled (Round Tip)
https://extp.in/vWqL0d
BUKU 150gm Soldering Flux Paste, Pack of 1 0 W Simple (Round Tip)
https://extp.in/4ncuXv
Soldering Stand:
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Siron Metal Alloy Soldering Iron Stand for 907A, 936A & 937D Soldering Irons – Random Colour
https://amzn.to/3RNjiq8
Electric Soldering Iron Stand, Full Metal Bottom Frame Holder, for Circuit Board Maintaining and Repairing (Square)
https://amzn.to/3Et0dXf
Electronic Spices Metal Soldering Iron Stand Solder Base Welding with Sponge Soldering Stand 0 W Temperature Controlled (Round Tip)
https://extp.in/tn386O
Electronic Spices Electric Soldering Iron Stand, Full Metal Bottom Frame Holder, for Iron Stand 0 W Simple (Flat Tip)
https://extp.in/B7E0Og
Thanks
VU2LVJ