And the neophyte asked...
Blue glow? I thought all vacuum tubes glowed orange at best. What's happening to cause the tube to run so hot? SR "Joe S." wrote in message ... Am I the only one who still likes radios with tubes and dial strings? And rectifiers that glow blue? And big ol' transformers that keep your coffee warm? -- ----- Joe S. |
Some of the old rectifiers had a blue glow to them.
SR wrote: And the neophyte asked... Blue glow? I thought all vacuum tubes glowed orange at best. What's happening to cause the tube to run so hot? SR "Joe S." wrote in message ... Am I the only one who still likes radios with tubes and dial strings? And rectifiers that glow blue? And big ol' transformers that keep your coffee warm? -- ----- Joe S. -- I have never met a liberal street cop. |
"nitespark" wrote in message news:StG1e.67555$7z6.58474@lakeread04... Some of the old rectifiers had a blue glow to them. And they flickered as you talked because the current load on the power supply changed with the modulation -- sort of like an aurora display right there on the floor. On the floor because the power supply was too damn heavy to sit on the desk. Modulation is a whole 'nother thread. SR wrote: And the neophyte asked... Blue glow? I thought all vacuum tubes glowed orange at best. What's happening to cause the tube to run so hot? SR "Joe S." wrote in message ... Am I the only one who still likes radios with tubes and dial strings? And rectifiers that glow blue? And big ol' transformers that keep your coffee warm? -- ----- Joe S. -- I have never met a liberal street cop. |
nitespark wrote:
Some of the old rectifiers had a blue glow to them. Mercury arc rectifiers? A bit large for domestic use! -- Bruce Fletcher Stronsay, Orkney UK www.stronsay.co.uk/claremont |
BTW they have a news group rec.radio.amateur.boatanchors just for the "ol
ways" folks. Good luck sparky |
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