1307-A: Difference between revisions
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Type | {{GR Product | ||
|model=1307-A | |||
|codes=OMEGA | |||
|class=oscillators | |||
|summary=Transistor Oscillator | |||
|image=GR 1307-A Close-up.jpg | |||
|caption=General Radio 1307-A Transistor Oscillator | |||
|series= | |||
|introduced=1954 | |||
|discontinued=1961 | |||
|designers= | |||
|manuals= | |||
* [[Media:GR 1307-A Transistor Oscillator 841-B 09_1955.pdf|GR 1307-A Transistor Oscillator Manual 841-B 1955]] | |||
* [[Media:GR 1307A Transistor Oscillator 1307-0100-F 01_1962.pdf|GR 1307A Transistor Oscillator Manual 1307-0100-F 1962]] | |||
{{Catalog History}} | |||
}} | |||
The {{Title|General Radio 1307-A Transistor Oscillator}} was introduced in {{Catalog N}} and remained available through {{Catalog Q}}. | |||
The Type 1307-A has the distinction of being the first General Radio instrument to incorporate the new device called the Transistor. | |||
It uses a P-N-P type transistor in a Hartley oscillator circuit. The portable unit is powered by three Mallory Type RM-l Mercury cells. | |||
The oscillator is capable of at least 2 volt output indicated on its meter at 600 Ω load. | |||
A switch selects between two frequencies, 400 Hz and 1000 Hz. Both are popular bridge and modulation frequencies. | |||
The output cable is terminated in a [[274-MB]] double plug. | |||
==Specifications== | ==Specifications== | ||
* '''Frequency:''' 400 and 1000 cycles accurate to ±3% at 2 V output into a 600 Ω resistive load | |||
* '''Output:''' Adjustable. Maximum output is at least 2 volts across 600 Ω load | |||
* '''Distortion: Less than 5% at 400 Hz and at 2 V across 600 Ω load | |||
==Links== | ==Links== | ||
* [[Media:GR Exp 1307-A 08_1954.pdf|Experimenter August 1954 describing Type 1307-A]] | |||
* [[Media:RCA 2N34 Transistor Data Sheet.pdf|RCA 2N34 Transistor Data Sheet]] | |||
* [[Media:Raytheon RK721 Transistor Data Sheet.pdf|Raytheon RK-721 Transistor Data Sheet]] | |||
==Photos== | ==Photos== | ||
<gallery> | <gallery> | ||
GR 1307-A Front.jpg | |||
GR 1307-A 2volt output.jpg | |||
GR 1307-A Left.jpg | |||
GR 1307-A Rear A.jpg | |||
GR 1307-A Rear.jpg | |||
GR 1307-A Right.jpg | |||
GR 1307-A Top.jpg | |||
</gallery> | </gallery> | ||
[[Category:Oscillators]] | [[Category:Oscillators]] | ||
Latest revision as of 07:52, 30 April 2024
The General Radio 1307-A Transistor Oscillator was introduced in Catalog N (1954) and remained available through Catalog Q (1961).
The Type 1307-A has the distinction of being the first General Radio instrument to incorporate the new device called the Transistor. It uses a P-N-P type transistor in a Hartley oscillator circuit. The portable unit is powered by three Mallory Type RM-l Mercury cells. The oscillator is capable of at least 2 volt output indicated on its meter at 600 Ω load. A switch selects between two frequencies, 400 Hz and 1000 Hz. Both are popular bridge and modulation frequencies. The output cable is terminated in a 274-MB double plug.
Specifications
- Frequency: 400 and 1000 cycles accurate to ±3% at 2 V output into a 600 Ω resistive load
- Output: Adjustable. Maximum output is at least 2 volts across 600 Ω load
- Distortion: Less than 5% at 400 Hz and at 2 V across 600 Ω load
Links
- Experimenter August 1954 describing Type 1307-A
- RCA 2N34 Transistor Data Sheet
- Raytheon RK-721 Transistor Data Sheet
