Clark,
R116 is normally in the bag with the BFO inductor. It sometimes gets
stuck in the bag, look carefully.
If you have to use a replacement, be certain it has a resistance of at
least 2 megohms (it is really used electrically as an insulator), and it
must be the 1/8 watt size because a larger one will not fit down inside
the toroid.
The purpose of R116 is to physically secure the inductor and provide
convenient leads that the very fine wire can be easily soldered to. It
serves no electrical purpose in the circuit at all (it is not even shown
on the schematic).
73,
Don W3FPR
Clark Macaulay wrote:
I'm at the last part of Part II and was really looking forward to the "smoke test" today but cannot find R116 for use with the BFO coil. When I did my parts inventory, I didn't check the resistor tape thinking that since it was produced by a machine, SURELY it didn't need verifying.
Is R116 packed separately in one of the RF parts bag? If so, I don't have it (at least now I don't have it). I've checked the boards thinking I might have put it in place of another component but haven't found it. At 1/8w tht would mean a size similar to the diodes.
How critical is the value if I want to find a local supplier?
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