Maybe the image I'm looking at is different than yours (if that's possible), but mine clearly shows the line from the armature 'jumping over' the negative DC bus, and ending at the bottom of the .1uf cap (the bottom of this cap should also be tied to common neg., but isn't). On my print, the 'jump over' symbol is clearly an error. John B., Halp! :-) Bill(oc)
Wonder when transistors started to be used? Hybrid sets were certainly around in the early '60s.
Look to the left near the hash choke; it's connected to common there. It's a strange way to draw it but it is correct.
-- Jim Mueller snipped-for-privacy@nospam.com
To get my real email address, replace wr>
Maybe the image I'm looking at is different than yours (if that's possible), but mine clearly shows the line from the armature 'jumping over' the negative DC bus, and ending at the bottom of the .1uf cap (the bottom of this cap should also be tied to common neg., but isn't). On my print, the 'jump over' symbol is clearly an error. John B., Halp! :-) Bill(oc)
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Probably a bit difficult getting back to the author, G A Quarrington , printed 58 years ago
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on
On diags that show the jump for no connection, lines crossing means there is a connection. I like the connection represented by a dot, but on some hard to read prints, this dot can disappear, leaving you wondering, which is it. Ken
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