I have used both my K3 and K3S with two Speed-X bugs - Les Logan and EF Johnson
- since Oct 2019. Over 700 contacts in the log for the Straight Key Century
Club. Some of those contacts were with different tube/boatanchor xmtr or QRP
rigs, but the majority with the bug. I've not used a paddle since Oct 2019.
I have had no issue with those two bugs, nor any other bug that was in short
service in that time.
No de-scratcher used, no capacitor across terminals. Stock, as-is.
So it might make sense for any bug user to check setup of pendulum/contacts etc,
apply some DeOxit or run thru some fine paper between the contacts.
But I don't see any presence or absence of any circuit in the K3 required
generally.
I do use a straight key sometimes, but the above numbers are the telling sample.
On my BA rigs, I do employ a simple keyer in-line with the bug in Straight Key
mode, but only to provide a side-tone for xmtrs without side-tone generation.
GL
Brian VE3HI
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