Three Electronics Tours Abroad

Electronics Representative Association. Northern California Chapter, and Commerce Tours international will co-sponsor three electronics tours in 1980 as follows:

COMPUTER TOUR:

Will visit Tokyo Information Processing Exhibition and 8th World Computer Congress in Tokyo from October 4th to October 10th, 1980.

FAR EAST ELECTRONICS TOUR:

Will visit four foreign electronics shows in Japan, Korea, Taiwan, and Hong Kong from October8th to October 22nd, 1980.

EUROPE ELECTRONICS TOUR:

Will visit London, Paris, and Munich Electrónica 80 from October 29th to November 9th, 1980.

As described by Wayne Green in January, Feb. 1980 73 Magazine

Business appointments will be arranged in advance and at Ihe shows. For further information, piease contact: Janet Smith

Commerce Tours international. Inc. ^332 870 Market Street. Suite 744 San Francisco, CA 94102 Tel: (415) 433 3072. [415) 433-3408

The only thing required is to modify the tuned cir-tuit(s) with suitable varactor tuning diodes. Table 1 gives some of the capacitance variations possible between 9 and 20 volts for the readily-available and inexpensive Motorola MV series of voltage-variable c apacitance diodes. Usually, by some form of parallel! or series combination of the varactor diode with a trxed value capacitor, any tuned circuit can be modified for remote tuning

7 he basic scheme worked so well in the case of the preamplifier application that the idea came up to

Capacitance <pF at 9 V)

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