Integrated Circuit Trf Receiver

455 Discriminator

An inexpensive Integrated Circuit has been available for some time which contains the complete gain, detection and age functions required in 455 kHz AM i-f strips, Intended for use with ceramic filters and an outboard front-end converter, the LM372 is presently designed into the AM section of several commercial AM FM high fidelity receivers, where it replaces the hand-assembled i-f can type strip formerly used. The LM372 is. in reality, a much broader-band device than its 455 kHz applications...

Kit Amp 200 Watt Sanken

SANKEN HYBRID AUDIO AMPLIFIER MODULES We have made a fortunate purchase of Sanken Audio Amplifier Hybrid Modules, I With these you can build I your own audio amplifiers at less than the price of diserete components. Just add a power supply, and a i to act as a heat sink. Brand new units, in original boxea, guaranteed by B and F, Sanken and die Sanken U.S. distributor, Available in three sizes -10 watts RMS watts music power . 25 watts RMS 50 watts M.P. and 50 watts RMS LOO watts M.P. per...

The Double Delta Antenna

Antenna Delta Loop

The Double Delta antenna is basically a combination of a vertical half rhombic design A , frequently called a delta antenna, and a turnstile antenna B made from folded dipole antennas. Fig. 1. The Double Delta antenna is basically a combination of a vertical half rhombic design A , frequently called a delta antenna, and a turnstile antenna B made from folded dipole antennas. Double Delta, was not simply pulled out of the hat but is based upon two well established and proven antenna...

Transistor Regenerative Receivers

Transistor Regen Receivers

From time to time, various amateur magazines have had notes on using transistors in regenerative detector circuits. Some time ago, I made a two-transistor receiver, and immediately ran into trouble with the regeneration. The problem was that as the regeneration control was advanced to the point of oscillation, the received frequency was pulled, and stations disappeared as I tried to tune them in. Also, the start of oscillation was very violent, and when the control was backed off. the dropout...

Gregory Electronics Corp

J. 07662 BfeSsifcsSSS Phone (201) 489-9000 n nt T sensitive, and will require the two tables to be closer together. Plug the antenna cable into the detector jack No. 1, and the other end into the dipole jack. Tune the detector to 432, and you should then have current showing, if the antennas are only a few feet apart to start. As soon as possible after positioning and tuning up a dipole, reflector, and director, set up at least a three-element beam to use as the...