[NJARC] NJARC 2008 Crystal-Set Seminar

[Al Klase]

Radio Folks,

The New Jersey Antique Radio Club's 2008 Crystal-Set Seminar will be 
held 14 June at the Radio Technology Museum at InfoAge.

See: http://www.njarc.ar88.net/Xtal_Seminar.htm Be sure to check the 
pictures of last year's event.

For more than 100 years, ordinary people have been building their own 
radio receivers that work without the use of batteries or connection to 
an AC outlet. These radio sets work by using a solid-state device to 
rectify the radio-frequency current captured by the antenna. In the 
earliest sets, this diode took the form of a mineral crystal in contact 
with a fine wire know as a cat’s whisker.
This event will give you the opportunity to share the magic of 
crystal-set building. The club will supply a kit of parts and technical 
assistance to construct the New Jersey Antique Radio Club “Pretty Good 
Xtal Set,” a design by noted crystal-set guru Al Klase. Participants 
will wind their own tuning coil, and assemble approximately ten 
components into a working receiver. Children 10 and older, accompanied 
and assisted by an adult are welcome. If you have electrical hand tools, 
wire cutters, long-nosed pliers, screwdrivers, a soldering iron, etc. 
bring them along.

General admission is free, but there is a $15 participation fee for each 
crystal set kit. The number of kits is limited, so please contact Al 
Klase, al at ar88.net <mailto:al at ar88.net>, 908-892-5465, to reserve a kit. 
This will be a day-long event. Registration for those building sets will 
open at 9:30 AM, and an orientation will follow at 10:00. The seminar 
will run until 4:00 PM. Bring a bag lunch, or chip in for pizza. Those 
not building radios are welcome to drop in at any time.

Of course, we're counting on club members to volunteer as “expert 
assistants.” We are also in need of donated parts, especially variable 
capacitors. Single or two-section units of 365-500 pF capacitance with 
quarter-inch shafts are the desirable ones. There will be a donation box 
at the next meeting.

Regards,
Al

-- 
Al Klase - N3FRQ
Flemington, NJ
http://www.skywaves.ar88.net/