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1L5: Difference between revisions
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It is very similar to the [[3L5]]. | It is very similar to the [[3L5]]. | ||
Its center frequency is set on a trio of rotary switches and can range from 50 Hz to | Its center frequency is set on a trio of rotary switches and can range from 50 Hz to 990 kHz. Minimum resolution bandwidth is 10 Hz. It has a 1 MΩ input resistance. | ||
990 kHz. Minimum resolution bandwidth is 10 Hz. It has a 1 MΩ input resistance. | |||
Type 1L5 was sold from 1967 until the end of the classic plug-in scope | Type 1L5 was [[introduced in 1967|sold from 1967]] until the end of the classic plug-in scope line. | ||
line. Not particularly accurate in either frequency, bandwidth, | Not particularly accurate in either frequency, bandwidth, or amplitude, it was no match for HP's 141T/8556A/8552B combination in performance, but it was a small fraction of the price. | ||
or amplitude, it was no match for HP's 141T/8556A/8552B combination in performance, | |||
but it was a small fraction of the price. | |||
Although Type 1L5 can operate in any 500-series scope*, | Although Type 1L5 can operate in any 500-series scope*, it is most useful by far in the Type [[549]] storage mainframe which allows slow sweeps needed to match the narrower resolution bandwidths. | ||
it is most useful by far in the Type [[549]] storage mainframe | |||
which allows slow sweeps needed to match the narrower resolution bandwidths. | |||
In conjunction with the [[015-0107-00]] Swept Frequency Converter (tracking generator), | In conjunction with the [[015-0107-00]] Swept Frequency Converter (tracking generator), the 1L5 can also measure frequency response. | ||
the 1L5 can also measure frequency response. | |||
<nowiki>*</nowiki> [[531]]/[[535]]/[[541]]/[[545]] need a wiring mod | <nowiki>*</nowiki> [[531]]/[[535]]/[[541]]/[[545]] need a wiring mod to alleviate vertical amp instability. | ||
to alleviate vertical amp instability. | {{MissingSpecs}} | ||
==Links== | |||
{{Documents|Link=1L5}} | |||
==Pictures== | ==Pictures== | ||
'''External''' | |||
<gallery> | <gallery> | ||
Tek 1L5 front2.jpeg | Front panel | |||
Tek 1L5 front2.jpeg | Tek 1l5 front.JPG | ||
Tek | Tek 1l5 2409.jpg | ||
Tek | |||
Tek 1l5 1.jpg | Tek 1l5 1.jpg | ||
Tek 1l5 2.jpg | Tek 1l5 2.jpg | ||
| Line 46: | Line 41: | ||
Tek 1l5 4.jpg | Tek 1l5 4.jpg | ||
Tek 1l5 5.jpg | Tek 1l5 5.jpg | ||
Tek 1l5 rear.JPG | Rear | |||
Tek 1L5 rear2.jpeg | |||
</gallery> | |||
'''Internal''' | |||
<gallery> | |||
Tek 1L5 bottom2.jpeg | |||
Tek 1L5 left2.jpeg | |||
Tek 1L5 right2.jpeg | |||
Tek 1L5 top2.jpeg | |||
Tek 1l5 top2.JPG|top | Tek 1l5 top2.JPG|top | ||
Tek 1l5 right.JPG|right | Tek 1l5 right.JPG|right | ||
Tek 1l5 left.JPG|left | Tek 1l5 left.JPG|left | ||
Tek 1l5 bottom.JPG|bottom | Tek 1l5 bottom.JPG|bottom | ||
Tek | </gallery> | ||
'''Pre-production unit''' | |||
<gallery> | |||
Preproduction incomplete 1L5.jpg|Preproduction 1L5 (serial A01) | |||
Preproduction incomplete 1L5 left.jpg|Preproduction 1L5 (serial A01) | |||
Preproduction incomplete 1L5 right.jpg|Preproduction 1L5 (serial A01) | |||
</gallery> | |||
'''Measurements, Diagrams''' | |||
<gallery> | |||
549_1L5.JPG | 1L5 works fine in [[549]] | |||
Tek 1L5 3MHz filter response 10db div.jpg|Measured frequency response of 3 MHz filter from P90 to P280 with Q290 removed to disable 3.1 MHz oscillator, but powered up. 10 dB/div. | |||
Tek 1L5 3MHz filter response 1db div.jpg|Measured frequency response of 3 MHz filter. 1 dB/div. | |||
Tek 1l5 block diagram.png|Block Diagram | Tek 1l5 block diagram.png|Block Diagram | ||
Tek 1l5 attenuators and input.png|Attenuators and Input | Tek 1l5 attenuators and input.png|Attenuators and Input | ||
| Line 63: | Line 78: | ||
Tek 1l5 calibrator.png|Calibrator | Tek 1l5 calibrator.png|Calibrator | ||
Tek 1l5 plug and power.png|Interconnecting Plug and Power Distribution | Tek 1l5 plug and power.png|Interconnecting Plug and Power Distribution | ||
</gallery> | </gallery> | ||