[time-nuts] Source for DC-blocking 50-ohm terminators? (Spectracom 8140)

Arthur Dent golgarfrincham at gmail.com
Mon Jun 4 11:24:44 EDT 2018


If you're not going to use the Spectracom  taps that are the
reason for the D.C. being on the coax, you can easily remove
the inductors used to superimpose the D.C. on the coax lines.
Without the 12V.D.C. on the outputs you can use standard 50
ohm terminations. The open toroids are reachable if you take
out a few screws to tip the back panel out and clip the leads
to remove the parts.Using the 8140 as a DA without disabling
the 12V.D.C. is a good way to fry some piece of test gear.
Here is a photo of the schematic.

-Arthur
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