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Television receivers black-and-white images "Electron-4" and "Electron-12" from October 1967 planned to produce the Lviv Television Factory. The unified lamp-semiconductor television sets 2 of the class "Electron-4" LPLT-59 and Electron-4 LFPT-47 are made on the basis of the unified model CNT-47/59 with preservation of the design and circuit design. In the model LPPT-59, a kinescope was used 59LK2B, and in the model LPPT-47 a kinescope 47LK2B, a PTK-Z unit with an APCG, 15 radio tubes, 3 transistors and a tiratron. The main differences of the model LPPT-59 from the model CNT-59; the IF amplifier of the sound is assembled on 2 GT313A transistors, the preamplifier of the LF on the MP-40A and the 6P14P lamp, the master oscillator of the frame sweep is made on TX4B tiratron, in the output stage of the frame sweep the 6П18П lamp is applied. Schemes of the other cascades are similar. The device has the ability to connect, prescribed by GOST remote control for brightness and volume, there are jacks for connecting headphones with the loudspeakers off. Anode fuses can be changed without removing the back wall. Power consumption compared with CNT-47/59 decreased, reliability increased. Televisions have a new design and designers are constantly working on upgrading in order to translate the image path and the introduction of the UHF reception unit. For some reason, the Electron-4 and Electron-12 TVs were not put into production, and instead of them, since October 1967, TVs were produced under the names Electron-2 and Spark-2, but with the unification of the type ULPPT-47 / 59-1.