linrad support: A high level mixer with parallel J310 as switches
for conversion from HF to 70 MHz.
(Jan 8 2004)
This mixer is very similar to the
mixer used in the RX144 unit
It is a doubly balanced mixer with four parallel J310 junction
FET transistors for each switch.
There is a switchable 5 dB attenuator in front of each mixer.
Schematic diagram for the HF to 70 MHz mixer.
The second channel is identical.
Only the component numbering differs.