NE612 heterodyne detector
rf - Adding Two Balun Transformers to SA612 Mixer Has No Effect on LO Suppression - Electrical Engineering Stack Exchange
Schaltungen mit dem NE602 (NE612, SA612, SA602) – Eine Übersicht – Volkers Elektronik-Bastelseiten
NE612 heterodyne detector
MIXER : The NE612 Tinkerboard
ON6MU's 50Mhz Converter Project for radio amateurs and shortwave listeners
NE612, SO42P TBA120S up to 120MHz CA3028 integrated TB6BHK
NE612 – Wikipedia
NE612 heterodyne detector
MIXER : The NE612 Tinkerboard
Mixer comparison: “NE612” vs. “AN612” – DK7IH QRP Engineering
HF Transreceiver using NE612 under Repository-circuits -49031- : Next.gr
DL5NEG - A homemade 50MHz to 28MHz RX converter
Schaltungen mit dem NE602 (NE612, SA612, SA602) – Eine Übersicht – Volkers Elektronik-Bastelseiten
NE612 Receive Mixer Band-pass Filter 2 - Signal_Processing - Circuit Diagram - SeekIC.com
NE602/NE612 info
40 m Band Superhet Receiver
A very compact SSB transceiver for 40 Meters with 50 watts of output power (Receiver front end and 1st mixer) – DK7IH QRP Engineering
Schaltungen mit dem NE602 (NE612, SA612, SA602) – Eine Übersicht – Volkers Elektronik-Bastelseiten
NE612 Datasheet | Philipss - Datasheetspdf.com
Troubleshooting an upconverter based on the SA612A mixer | All About Circuits
An experimental HF 6-band SSB transceiver – Part 7: The Transmitter – DK7IH QRP Engineering
