[Hallicrafters] Off-subject / soldering

[lrlayton at cox.net]

Not sure where your info on the Lincoln cent came from, but my copy of  "A Guide Book of United States Coins" by R.S. Yeoman says that the 95 % copper with 5 % tin and zinc cent had a weight of 3.11 grams from 1909 until the change to copper plated zinc in 1982 (with the exception of the war time zinc coated steel cents of 1943). A minor change in composition was made from  1962 to 1982 that eliminated the small percentage of tin, but the weight remained the same at 3.11 grams until 1982. From then on we got the lightweight copper plated zinc version of today with 97.5 % zinc and 2.5% copper.

I have a few radios with copper plated chassis and that hasn't proved to hold up too well over the years against corrosion and neither do the copper plated zinc cents.

Les Layton
a boatanchor and Lincoln cent collector



---- "Duane Fischer wrote: 
> Hi Roy (and All),
> 
> If you search the Hallicrafters archives you will discover quite a few 
> helpful and informative posts on the topic of 'soldering'.
> 
> Unless the structure of the database for the 'mailman.qth.net' archives has 
> been changed since the 'NEW' Owner took over two years ago, you should be 
> able to search as far back as 1996 or 1997. I would suggest that you search 
> more then just the archives for the Hallicrafters posts! Such as; Boat 
> Anchors, Heathkit, Hammarlund, Drake, Collins, National, Swan etc. You can 
> search by a subject name as well as a post phrase. You can narrow the search 
> field down so as to be very selective!
> 
> I have OFTEN wished that those searching for the answer to a question would 
> collect all the replies, edit out the not needed words, and post the answers 
> to his/her question as one entity. But RARELY does anyone do this.
> 
> Remember, all the answers are saved in the archives! Wouldn't it be great to 
> have this one file appear with replies from half a dozen experienced boat 
> anchor devotees! Get the heavy hint my fellow vintage radio brothers and 
> sisters?
> 
> Thanks!
> Don't bother sending me the change left over from my two cents worth. Even 
> with the price per pound of Copper being quite high, the inflated price of 
> the postage stamps needed to mail the letter by postal pigeon would likely 
> result in a debit balance!
> 
> FYI: From 1909 through 1958 the Lincoln Wheat Cent weighed 4.11 grams. It 
> was composed of 95% Copper. Then in 1962 the United States Mint reduced the 
> weight to 3.04 grams by altering the 5% mixture of Tin and Zinc contained in 
> the Lincoln Memorial Penny! However, the 95% Copper remained the same! Then 
> in 1982 the United States Mint went totally radical and reduced the weight 
> of the Copper Penny down to 2.5 grams! The penny now only contained 2.4% 
> Copper! Hence, it was a Copper plated Zinc + Tin coin! No longer a true 
> Copper penny!
>