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Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965

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17.05.2025, 21:52
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Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 2
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 3
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 4
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 5
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 6
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 7
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 8
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 9
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 10
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 11
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 12
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 2Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 3Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 4Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 5Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 6Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 7Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 8Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 9Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 10Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 11Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 12
DescriptionAll photos of the lot 11
Type:
Professional
Category:
Other
Material:
Different
Разный
Condition:
Старое
Старое
Restoration:
There was none. I did not carry out
Не было. Мной не проводилась
Defects:
Traces of time. Missing back cover
Следы времени. Отсутствует задняя крышка
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Location:
Ukraine, Poltava oblast, Lubny
Payment:
Cash payment, PrivatBank, Monobank, Oschadbank, Крипта, Western Union, PayPal, PerfectMoney
Sending lot to:
Ukraine,The whole world
Delivery:
Nova Poshta, Ukrposhta, Meest Express, Personal meeting Lubny (according to the current legislation of the seller's country of residence).
Description:
Device "L2-1"
Tester (viprobovach), meter.
Measuring.
For verification of transistors (parameters of plane triodes).
With a pointer indicator, microammeter "M24-111".
Made in the USSR.
GOST 9763-61.
№ 4965.
1965
"L2-1 (IPT-1) tester is designed to quickly determine the suitability of planar crystal triodes and to change:
– current gain in case of a short circuit in the collector circuit;
– output conductivity at idle in the emitter circuit;
– reverse current of the collector in the absence of emitter current.
The type of triodes measured is "p-n-p" and "n-p-n".
Measurement limits of the device in a scheme with a common base:
- Gain - from 0.9 to 1;
– output conductivity – from 0.4 μSm to 4 μS;
– return current of the collector – from 0 to 50 μA."
Condition in the photo.
https://rw6ase.narod.ru/index1/pribor/izmiritel/l2...
Прибор "Л2-1" Тестер (випробувач), измеритель. Измерительный. Для поверки транзисторов (параметров плоскостных триодов). С индикатором стрелочным, микроамперметр "М24-111". Сделано в СССР. ГОСТ 9763-61. № 4965. 1965 г. "Л2-1 (ИПТ-1) испытатель предназначен для быстрого определения годности плоскостных кристаллических триодов и изменения: — коэффициента усиления по току при коротком замыкании в цепи коллектора; — выходной проводимости при холостом ходе в цепи эмиттера; — обратного тока коллектора при отсутствии тока эмиттера. Тип измеряемых триодов — «p-n-p» и «n-p-n». Пределы измерения прибора в схеме с общей базой: — коэффициента усиления — от 0,9 до 1; — выходной проводимости — от 0,4 мкСм до 4 мкСм; — обратного тока коллектора — от 0 до 50 мкА." Состояние на фото. https://rw6ase.narod.ru/index1/pribor/izmiritel/l2_1.html
Link to the discussion:
https://violity.com/ru/116966847-pribor-izmeriteln...
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Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 2
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 3
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 4
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 5
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 6
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 7
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 8
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 9
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 10
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 11
Device "L2-1" (M24-111). For verification of transistors (parameters of plane triodes). 1965, photo number 12

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