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Ray-O-Vac Advertisement
August 25, 1945 - Saturday Evening Post

RF Cafe - August 25, 1945, edition of the Saturday Evening PostHere is an advertisement by Ray-O-Vac from the August 25, 1945, edition of the Saturday Evening Post. As with many of the advertisements of the era, this ad refers to the company's contribution to the war effort during WWII, to wit, "Proven by our fighters - First choice for YOU."

In today's market, a leak-proof battery is assumed, but early dry cells (which sometimes were actually wet cells) were notorious for oozing electrolyte when subject to impact or vibration. At least when a modern dry cell starts leaking, the most it might do is cause corrosion of metallic contacts and some build-up on a plastic case. Some of the old cells were fierce enough to eat through just about anything they were in.

Of course, now that lithium polymer batteries are routinely replacing carbon, alkaline, Ni-Cad and NiMH cells, the nasty habit of sometimes exploding during the charging cycle can be very messy. Do a YouTube search sometime on Li-Po explosions.


RAY-O-VAC advertisement from the August 25, 1945, edition of the Saturday Evening Post - RF Cafe



Other Saturday Evening Post Ads & Articles:
- How Our Commies Defame America Abroad
- You're Not Very Smart After All
- General Electric Advertisement
- RCA Advertisement
- Anaconda Copper Advertisement
- General Electric (GE) Black-Daylight Television
- Champion -Spark Plugs
- Corning Glass
- How's Your Radio Geography?
- Ray-O-Vac Batteries
- RCA Graphechon Tube
- The Atom May Save Your Life
- Those Evil Radios!
- Western Electric

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RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
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