Can anyone relate the old KLG brown (mica?) towered plugs with brass terminals, types G1, H1 & K1, to any other plugs of equivalent temperature ranges?
Also, any idea as to when they were produced?
Thanks in advance, Dave Carter.
KLG Plug Temperatures.
Oct 28, 2006
4 Replies
Champion No.7? Mid to late 20s ?
Still listed in the 1956 UK Champion catalogue...
Peter
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Warsop used them in their rock drills, still being supplied in the 1960's. Ceramic insulators wouldn't last five minutes in the engines.
Can't find a heat range reference for them.
Peter
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Thank you, Oily and Peter.
All I have to go on is the shape and positions of the insulation and electrodes. The three electrodes on the K1 are very similar to a Lodge C3 I have been using, and that is a hot plug. So I presume the others are relatively cooler.
Regards, Dave Carter.
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