View source for 1217-C

{{GR Product
|model=1217-C
|class=generators
|summary=Unit Pulse Generator
|image=GR 1217-C Close-up.jpg
|caption=General Radio 1217-C Unit Pulse Generator
|series=1217
|introduced=1965
|discontinued=1973
|designers=
|manuals=
* [[Media:GR 1217-C Unit Pulser.pdf|General Radio 1217-C Unit Pulse Generator Manual]]
{{Catalog History}}
}}
The {{Title|General Radio 1217-C Unit Pulse Generator}} was introduced in {{Catalog S}} and remained available through {{Catalog 1973}}. 

Type 1217-C is a general-purpose [[unit instruments|unit type]] pulse generator, an improved version of Type [[1217-B]] with increased pulse repetition frequency and faster transition times to less than 10 ns. 

The 1217-C features a 1.2 MHz PRF internally which doubles to 2.4 MHz with external drive. Other features are front-panel outputs for positive- and negative-going pulses with variable amplitude control. 

Pulse duration is continuously variable from 0.1 μs to 1 s in seven ranges. Front panel synchronizing outputs are available for triggering external devices. 

The [[1217-P2|1217-P2 Pulse Trigger accessory]] was available for single pulse triggering. 

Recommended power supplies are Types [[1201-C]] and [[1203-B]].

==Specifications==
 
* '''PULSE REPETITION RATE'''
* '''Internally Generated:''' 2.5 Hz to 1.2 MHz, ±5%
* '''Externally Controlled:'''  DC to 2.4 MHz with 1 V<sub>RMS</sub> input, (0.5 V at 1 MHz and lower)

* '''OUTPUT PULSE CHARACTERISTICS'''
* '''Duration:''' 100 ns to 1 s in 7 decade ranges, ±5% of reading or ±2% of full scale or ±35 ns, whichever is greater
* '''Rise and Fall Times:''' Less than 10 ns into 50 or 100 Ω; typically 60 ns + 2 ns/pF external load capacitance into 1 kΩ (40 V)

==Links==

* [[Media:GR Exp 1217-C 12_1964.pdf|Experimenter December 1964 describing Type 1217-C]]

==Photos==
<gallery>
GR 1217-C Front.jpg
GR 1217-C Left.jpg
GR 1217-C Rear.jpg
GR 1217-C Right.jpg
GR 1217-C Inside Rear A.jpg
GR 1217-C Inside Rear.jpg
GR 1217-C Interior Bottom B.jpg
GR 1217-C Interior Bottom.jpg
GR 1217-C Interior Top.jpg
</gallery>

[Category:Oscillators]]
[[Category:Generators]]
[[Category:Unit Instruments]]