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Starting from the 1st quarter of 1989, the Start IP-1 radio designer (Power Supply) produced the Riga software Switch.
RK is intended for beginner hams interested in building high-quality radio equipment.
The kit contains components, parts and structural elements from which it is possible to assemble a high-quality switchgear that provides power supply to the blocks included in the combined digital measuring device, as well as additional (external) loads.
The kit provides two options for assembling the device: I - DC voltage: 4 ... 9 V 15 and -15 V. II - DC voltage: 5 V 15 and -15 V. The IP-1 power source is a device
providing power supply to the entire radio measuring complex, consisting of designers: digital frequency counter "ЧЦ-1", voltage-frequency converter "ПÐЧ-1", audio signal generator "ГЗЧ-1", RLC meter "I-1", power supply
with the logical probe "IP-2".
All measuring instruments assembled from these sets have the same dimensions and design and can be mechanically and electrically combined into a complex.
A properly assembled and debugged power supply unit provides the following parameters: DC voltage at the output according to I and II assembly options;
the value of the output current at each output is not more than 100 mA;
protection against short circuit in the load and indication of the presence of output voltages.
The device has three outputs for connecting other measuring instruments of the complex and three outputs for connecting external loads.
"Start" - a series of Soviet radio designers, produced since 1970 by a number of enterprises.
Most of the models of these designers, with a few exceptions, were produced by the Kamenetz-Podolsky Elektropribor plant (they can be distinguished by a box with a red or orange sticker that depicts a stereo complex with a reel tape recorder).
The first set of model numbers does not have, and all the rest, with the exception of the models IP-1, CC-1, PNC-1, GZCh-1, I-1 and IP-2, are assigned four-digit numbers starting with the number 7 (except for PK 1202
and 2103).The main topics of designers are sound engineering, color music, digital technology, power supplies, simple automation.
Most radio constructors in the series include radio elements, a board, and an instruction manual.
The housing and power transformer must be purchased or manufactured separately (this was done to reduce the cost of the kit).
Available in the series, however, and fully equipped sets.