[SBE] toxic chemical reminiscences

[A9xw at cs.com]

WFAW had a 50 kW Westinghouse FM rig with mercury vapor rectifiers. In 
school we played with mercury as part of science class. nbd. it was fun till it 
oxidized and became semisolid. The dentists often let us have a tiny bit to 
play with at home when they made amalgam fillings. Never heard of anyone 
dying from mercury cavity fillings. Millions still have them today. Kreosote 
was another favorite to prevent wood rot and bugs. DDT was great too, debug a 
corn field TX site for months at a time. Keep the spiders out of the HV 
condensors. yeah we used that word vs capacitors. another goodie, transcriptions 
not records, 16" with RCA turntables that would start in both directions, 
you never knew unless you gave it a shove first. Gray tonearms with a quarter 
taped over the GE II pickup to track the warps. Hour long LP's, with the 
spiral so shallow you'd get over cuts between adjacent grooves,  have a good 
anecdote on that. Sparta equipment,  Shure wire recorders, Brush electric 
audio tape machines, 15, 19 and reperf  TTY, Visual transmitters, NEC core 
memory frame syncs. Ampex 600's, IVC  cameras and tape. RETMA color code. 
Richmond Hill, BC1A, BC5, BC7,  ADR-150-5. 

Henry
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://seven.pairlist.net/pipermail/sbe/attachments/20090820/a688bd78/attachment.html>