Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 2 / 2
Rcurl
User Rank
Rookie
re: Man-from Mars Radio Hat
Rcurl   11/15/2012 1:06:03 AM
NO RATINGS
My Dad went to Sears & Roebuck to get a replacement battery for the hat. The battery was a 22.5 volt/1.5 volt "Hearing aid battery". He asked for it by number and when the salesman came back from the stockroom he screamed at the top of his lungs "WE DON"T HAVE ANY!!!

David Ashton
User Rank
Blogger
re: Man-from Mars Radio Hat
David Ashton   11/14/2012 11:33:36 PM
NO RATINGS
Since the tubes are outside the hat (as shown) the tube heat would be dissipated externally. However I note from the Wikipedia article that it only had a 20-hour battery life... the battery was a monster carried external to the hat. Good thing someone invented transistors, isn't it?

antedeluvian
User Rank
Blogger
re: Man-from Mars Radio Hat
antedeluvian   11/14/2012 9:14:59 PM
NO RATINGS
Maybe it's intended for northern climes- good in winter.

Max The Magnificent
User Rank
Blogger
re: Man-from Mars Radio Hat
Max The Magnificent   11/14/2012 2:13:46 PM
NO RATINGS
Maybe there's an optional fan attachment -- or maybe you just have to walk quickly to generate a cooling breeze :-)

rf_austin
User Rank
Rookie
re: Man-from Mars Radio Hat
rf_austin   11/14/2012 2:12:15 PM
NO RATINGS
Doesn't the tube filament current leave your forehead sweating? Defeats the purpose of a hat doesn't it?

mike_m
User Rank
Manager
re: Man-from Mars Radio Hat
mike_m   11/13/2012 9:42:36 PM
NO RATINGS
That's similar too, but much cooler than, the guys I used to see at a hamfest in Flagstaff back in the 80's and 90's who had a TV camera and a 1.2 Ghz yagi antenna along with a 1 or 2 watt transceiver all mounted in a backpack with a helmet cam. They were Broadcasting a live video link of the hamfest people. I'd rather have one of these 50's era radio hats any day of the week. Mike

Max The Magnificent
User Rank
Blogger
re: Man-from Mars Radio Hat
Max The Magnificent   11/13/2012 2:18:29 PM
NO RATINGS
If I could go back in time, I would certainly buy one of these little beauties

<<   <   Page 2 / 2


Most Recent Comments
Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

The Best of the Best Videos on YouTube
Max Maxfield
3 comments
A couple of days ago, my chum Paul was visiting me in my office. He'd wandered over from his cubicle in the next bay to take a brief coffee break. This week, Paul had been admiring the ...

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
2 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...