2N301: Difference between revisions
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|Used_in=502;502A; | |Used_in=502;502A; | ||
}} in a TO-3 package, used in the regulated pre-amp heater power supply of the [[502]]. | }} in a TO-3 package, used in the regulated pre-amp heater power supply of the [[502]]. | ||
RCA announced their first Ge PNP TO-3 types, the 2N301 and 2N301A, in early 1957. | |||
The AD149 is similar. | The AD149 is similar. | ||
| Line 17: | Line 19: | ||
{{Spec | Collector current | max. –3 A }} | {{Spec | Collector current | max. –3 A }} | ||
{{Spec | Power dissipation | max. 11 W }} | {{Spec | Power dissipation | max. 11 W }} | ||
{{Spec | Current gain (hFE) | typ. 70 | {{Spec | Current gain (hFE) | typ. 70 at 1 A collector current }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Links== | ==Links== | ||
* [[Media:2N301 datasheet.jpg|2N301 datasheet]] | * [[Media:2N301 datasheet.jpg|2N301 datasheet]] | ||
* [[tube:2n301|2N301]] @ radiomuseum.org | |||
* [https://www.semiconductormuseum.com/Transistors/LectureHall/JoeKnight/JoeKnight_EarlyPowerTransistorHistory_RCA_Page3.htm RCA 1950s Germanium Power Transistors] @ semiconductormuseum.com | |||
* [http://semiconductormuseum.com/Transistors/RCA/OralHistories/Kalish/Kalish_Index.htm Iz Kalish oral history] @ semiconductormuseum.com | |||
==Pictures== | |||
<gallery> | |||
2N301 box.jpg | |||
</gallery> | |||
[[Category:Transistors]] | [[Category:Transistors]] | ||
[[Category:Introduced in 1957]] | |||
Latest revision as of 04:10, 24 July 2024
The 2N301 (P/N 151-0001-00) is a germanium PNP power transistor in a TO-3 package, used in the regulated pre-amp heater power supply of the 502.
RCA announced their first Ge PNP TO-3 types, the 2N301 and 2N301A, in early 1957.
The AD149 is similar.
Some instruments using part 2N301
| Instrument | Manufacturer | Class | Model | Description | Introduced |
|---|---|---|---|---|---|
| 502 | Tektronix | Oscilloscope | 502 | 1 MHz dual beam differential scope | 1958 |
| 502A | Tektronix | Oscilloscope | 502A | 1 MHz dual beam differential scope | 1963 |
- 502: V647 (sic – still using "V" prefixes for transistors in 1958)
- 502A: Q647 = 2N301 in schematic, parts list says "use 2N2148 (151-0137-00)"
Key Specifications
| Collector voltage | max. −40 V |
|---|---|
| Collector current | max. –3 A |
| Power dissipation | max. 11 W |
| Current gain (hFE) | typ. 70 at 1 A collector current |
Links
- 2N301 datasheet
- 2N301 @ radiomuseum.org
- RCA 1950s Germanium Power Transistors @ semiconductormuseum.com
- Iz Kalish oral history @ semiconductormuseum.com
