US Silicon models with similar characteristics would probably be the 2N, 2N, 2N and their derivatives. It might be necessary to adjust the values of R2, depending on the transistor used. Sometimes instead of the variable capacitor of pF as C1 I use a fixed pF ceramic capacitor. With that the transmitting frequency is around kHz but the stability suffers a bit. The ferrite rod I currently use is just 8cm long because the, very fragile, original 14X0.
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Low current max. Low voltage max. High performance amplifiers? Oscillator and switching applications. Note 1. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains? Stress above one or more of the limiting values may cause permanent damage to the device.
These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the speci? Exposure to limiting values for extended periods may affect device reliability. Application information Where application information is given, it is advisory and does not form part of the speci? Philips customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale.
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2N1893 - Bipolar Transistors TO-39
2N1893 Datasheet, Equivalent, Cross Reference Search