back to N0ZYC Hybrid Attenuator

2 second build:


I need to build more offset attenuator boxes for scout activities. I could just put them in a plastic 3d-
printed box, but my hybrid attenuator design is so much beter that I'd rather spend the additional time doing
it right. I also really don't like OA boxes that have a switch on them that's easy to turn on by accident or
during transport - I've encountered an OA box that's unusable due to a dead battery on more than one occasion.

This time around I'm also trying to document construction in detail, including drill points for holes and
lengths of internal wire and coax. This 1.13mm coax is a huge pain to strip, and you have to hot glue it
down before you try to work with it or it'll rip right off the board, so I only find out if it's to short
AFTER it's glued down, and that just makes it all the bigger headache to backtrack and fix.

The pictures here represent my current state of assembly, more to come soon.

01 preparing the enclosure	02 rotary switch marked	03 bypass and part of 20+40 resistors in	04 20 and 40 attenuators done	05 some micro coax (1.13mm) prepped	06 offset attenuator board soldered
07 ready for fit-test and hot glue	08 attaching the control knob	09 attaching the control knob	10 resistor network on attenuator	11 adding coax

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last updated 12/08/2023 at 23:31:21 by make_www_index.command version 2023.12.08.B