[Hallicrafters] No PCB's in caps

[Roger(K8RI)]

> FWIW,
>
> Catalog listings for 1945 and 1968 show Cornell Dublier capacitors
> advertised as using Dykanol dielectric oil.

If you run across something with PCB s in it you will probably know it right
away. The stuff has a rather pungent oder.  Maybe a tinge like garlic, same
say sweet, but
it  does have a distinct odor and it does not smell like oil.

> Dykanol is listed as a pcb in the EPA consumer factsheet on
Polychlorinated
> Biphenyls.
> http://www.epa.gov/safewater/contaminants/dw_contamfs/pcbs.html
>
> Listings from Sprague for 1945 show "oil impregnated, wax filled"
> capacitors, but no oil-filled. And they don't say what kind of oil.
> In 1968 Sprague offered capacitors with "Vitamin Q" impregnant. Anybody
> know what Sprague's  "Vitamin Q" was ?
>
> GE  1945 catalog listings show "Pyranol Capacitors for Amateur Radio
> Equipment"  Pyranol,strangely isn't on the EPA list at the above link,
> although other web sites assert Pyranlol was GE's tradename for
> Monsanto-produced PCB's.

"As I recall", Pyranol is not a PCB, but I'm depending on an old memory
trying to recall some 40 years back.

I do remember changing out the PCB containing oil in transformers for the
newer environmental friendly oils and I do remember the smell.
>

Roger Halstead (K8RI, EN73 & ARRL Life Member)
N833R, World's Oldest Debonair? (S# CD-2)
www.rogerhalstead.com