[Hallicrafters] anyone got May 69 QST& tech query

[Nash4447 at cs.com]

I am in need of someone who has this issue in their library to take a peek at 
a schematic appearing in it and advise of the identification of a part in a 
construction article. I will give the particulars upon request.

Also, I have a question for the tech experts., specifically, some xtal 
controlled transmitters have trimmers in parallel with the xtal and others in series 
with the xtal. Both ways claim to rubberize the xtal a bit for getting it on 
frequency. My question is why are some trimmers in parallel and others in 
series with the xtal? It would seem to me that parallel is the only way. Putting a 
cap in series would block the xtal output altogether. Whatdoyathink?

73s, Glenn