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Is the device working? I see missing screws on the back cover. Take a photo with the back cover of the board removed.
Show originalAmmeter voltmeter TL-4M
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Max bid:
0 UAH
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Added:
25.05.2025, 12:31
25.05.2025, 12:31
Watching the lot: 1person
Added:
25.05.2025, 12:31
25.05.2025, 12:31
Type:
Category:
Material:
Plastic, metal
Пластик, металл
Condition:
Used appearance in the photo, as free time the device will be cleaned
Б/У внешний вид на фото, по мере свободного времени прибор будет почищен
Restoration:
No
Нет
Defects:
Show originalThere are no schups in the kit
В комплекте нет счупов
Location:
Ukraine, Kiev oblast, Kiev
Payment:
Cash on delivery, PrivatBank, Raiffeisen Bank Aval
Sending lot to: 
Ukraine,
The whole world
Ukraine,The whole worldDelivery:
Nova Poshta, Ukrposhta (according to the current legislation of the seller's country of residence).
Description:
TL-4M Ampervoltommeter is a transistor tester without batteries and probes.
Ampervoltommeter-tester of transistors type TL-4M is designed to measure DC current and voltage, alternating sinusoidal current with a frequency of 50 Hz, alternating sinusoidal voltage with a frequency of 40-15,000 Hz, DC resistance and parameters of low-power transistors
Iko is the reverse current of the collector junction (collector-base transition);
IEO is the reverse current of the emitter junction (emitter-base transition);
Icn is the initial collector current;
ẞ is the static current gain (determined by calculation ẞ = Ik / Ib
The device is designed for radio amateurs, and can also be used in laboratory and workshop conditions.
The device is designed to operate at temperatures from minus 10 ° C to plus 50 ° C and relative humidity up to 80%.
TECHNICAL DATA TL4-M
Measurement limits
The final value of the scale corresponds to:
when measuring the DC strength of OD-0.3-1-30-300 and 3000 mA;
when measuring the strength of alternating current 3-30-300 and 3000 mA;
when measuring DC voltage 0.1_3-10-30-100-300 and 1000 V;
When measuring alternating voltage 1-3-1 O-30-100-300 and 1000 V.
When measuring resistances, the final value of the working part of the scale (number 300) corresponds to:
0.3 kΩ at multiplier X1
3 kΩ at a multiplier of X10
30 kΩ at X100 multiplier
0.3 MΩ at X1000 multiplier
3 MΩ at a multiplier of X10,000
The last digitized point of the scale 500 (in the non-working part of the scale) corresponds to 0.5 kOhm, 5 kOhm, 50 kOhm, 0.5 MΩ, 5 MΩ with the same factors.
NOTE
Measurement at a multiplier of x10000 is performed using an external DC voltage source of 24-30 V.
Ampervoltommeter-tester of transistors type TL-4M is designed to measure DC current and voltage, alternating sinusoidal current with a frequency of 50 Hz, alternating sinusoidal voltage with a frequency of 40-15,000 Hz, DC resistance and parameters of low-power transistors
Iko is the reverse current of the collector junction (collector-base transition);
IEO is the reverse current of the emitter junction (emitter-base transition);
Icn is the initial collector current;
ẞ is the static current gain (determined by calculation ẞ = Ik / Ib
The device is designed for radio amateurs, and can also be used in laboratory and workshop conditions.
The device is designed to operate at temperatures from minus 10 ° C to plus 50 ° C and relative humidity up to 80%.
TECHNICAL DATA TL4-M
Measurement limits
The final value of the scale corresponds to:
when measuring the DC strength of OD-0.3-1-30-300 and 3000 mA;
when measuring the strength of alternating current 3-30-300 and 3000 mA;
when measuring DC voltage 0.1_3-10-30-100-300 and 1000 V;
When measuring alternating voltage 1-3-1 O-30-100-300 and 1000 V.
When measuring resistances, the final value of the working part of the scale (number 300) corresponds to:
0.3 kΩ at multiplier X1
3 kΩ at a multiplier of X10
30 kΩ at X100 multiplier
0.3 MΩ at X1000 multiplier
3 MΩ at a multiplier of X10,000
The last digitized point of the scale 500 (in the non-working part of the scale) corresponds to 0.5 kOhm, 5 kOhm, 50 kOhm, 0.5 MΩ, 5 MΩ with the same factors.
NOTE
Measurement at a multiplier of x10000 is performed using an external DC voltage source of 24-30 V.
ТЛ-4М Ампервольтомметр - испытатель транзисторов без батареек и щупов.
Ампервольтомметр-испытатель транзисторов типа ТЛ-4М предназначен для измерения постоянного тока и напряжения, переменного синусоидального тока частотой 50 Гц, переменного синусоидального напряжения частотой 40— 15 000 Гц, сопротивления постоянному току и параметров транзисторов малой мощности
Iко — обратного тока коллекторного перехода (переход коллектор-база);
Iэо — обратного тока эмиттерного перехода (переход эмиттер-база);
Iкн — начального тока коллектора;
ẞ — статического коэффициента усиления по току (определяется расчетным путем ẞ = Ik / Ib
Прибор предназначен для радиолюбителей, а также может быть использован в лабораторных и цеховых условиях.
Прибор рассчитан на работу при температуре от минус 10° С до плюс 50° С и относительной влажности до 80%.
ТЕХНИЧЕСКИЕ ДАННЫЕ ТЛ4-М
Пределы измерений
Конечному значению шкалы соответствует:
при измерении силы постоянного тока ОД—0,3—1—3—30—300 и 3000 мА;
при измерении силы переменного тока 3—30—300 и 3000 мА;
при измерении постоянного напряжения 0,1_3—10—30—100—300 и 1000 В;
при измерении переменного напряжения 1—3— 1 о—30— 100—300 и 1000 в.
При измерении сопротивлений конечному значению рабочей части шкалы (число 300) соответствует:
0,3 кОм при множителе X1
3 кОм при множителе X10
30 кОм при множителе X100
0,3 МОм при множителе X1000
3 МОм при множителе X10 000
Последней оцифрованной точке шкалы 500 (в нерабочей части шкалы) соответствует 0,5 кОм, 5 кОм, 50 кОм, 0,5 МОм, 5 МОм при тех же множителях.
ПРИМЕЧАНИЕ
Измерение при множителе х10000производится с помощью внешнего источника постоянного напряжения 24-30 В.
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