1L30
The Tektronix 1L30 is a 10.5 GHz spectrum analyzer plug-in for 500-series scopes. It covers the frequency range from 1 GHz to 10.4 GHz.
The 1L30 was originally the third-party Pentrix L-30. The model number was changed some time after Tektronix took over Pentrix in 1964, along with some design changes.
Key Specifications
| Frequency range | 925 MHz to 10.4 GHz |
|---|---|
| Sensitivity | –105 to –75 dBm |
| Dispersion | 15 kHz to 60 MHz, magnifier usable to 2.5 kHz |
| Resolution bandwidth | 1 kHz to 100 kHz, variable |
| Display | log, lin, square, video |
Prices
- 1965: $1,995 (~$20,000 in 2025 dollars)
Pictures
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Top View
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Left Internal View
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Right Internal View
Components
Some Parts Used in the 1L30
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 12AU6 | 154-0040-00 | Vacuum Tube (Pentode) | RF pentode | 81 • 112 • 1L10 • 1L20 • 1L30 • 1L60 • 3L10 • 512 • 556 • 575 • 545 • 547 • 549 • 581 • 585 • A • B • C • G • K • H • L • ML • M • N • O • R • S • Z • Pentrix L20 • Pentrix L30 |
| 152-112 | 152-112 • 152-0112-00 | Discrete component | step recovery diode | 4S2 • 1L20 • 1L30 |