7L5: Difference between revisions
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* [https://www.youtube.com/watch?v=tm4Y5Tv1huk 7L5 in operation @ youtube] | * [https://www.youtube.com/watch?v=tm4Y5Tv1huk 7L5 in operation @ youtube] | ||
* [[L1-GC]] | * [[L1-GC]] | ||
==Prices== | |||
{| class="wikitable" | |||
|- | |||
! Year | |||
! 1976 | |||
! 1980 | |||
! 1988 | |||
|- | |||
! Catalog price | |||
| align="right" | $4,500 | |||
| align="right" | $7,075 | |||
| align="right" | $12,500 | |||
|- | |||
! In 2022 Dollars | |||
| align="right" | $22,400 | |||
| align="right" | $24,400 | |||
| align="right" | $30,000 | |||
|- | |||
|} | |||
According to an [[Media:Tek Schottky Diodes Memo rot.pdf|internal memo]], in 1979 annual sales were estimated at 454 units. | |||
==Pictures== | ==Pictures== | ||
Revision as of 08:27, 13 March 2022
The Tektronix 7L5 is a low frequency (10 Hz – 5 MHz) spectrum analyzer plug-in for 7000-series scopes.
It has built-in digital storage, so it will work fine in non-storage mainframes such as the large-screen 7603.
It also features digital scale and marker level/frequency (6 digits) readout, and a "max hold" function.
According to the 070-2184-01 manual, instruments with a serial number below Β070000 are missing the B − (Save A) feature and the corresponding button on the front panel. The military version is called PL-1391/U and is also lacking the B − (Save A) feature.
Key Specifications
| Input frequency | 10 Hz – 5 MHz |
|---|---|
| Drift | < 5 Hz/h |
| Resolution bandwidth | 10 Hz – 30 kHz in ×3 / ×10 steps |
| Sweep rate | 10 s/Div to 0.1 ms/Div in 1−2−5 sequence plus Auto |
| Residual FM | < 40 Hzp-p (< 1 Hz from 50 Hz/Div to 2 kHz/Div) |
| Outputs | Horizontal, Video, Calibrator |
| Input impedance |
Options
No. Log sweep display Tracking generator LED Readout 21 • 25 • 28 • 30 • • 31 • • 32 • • 33 • • •
Links
- 7L5 page @ amplifier.cd with internal photos
- 7L5 in operation @ youtube
- L1-GC
Prices
| Year | 1976 | 1980 | 1988 |
|---|---|---|---|
| Catalog price | $4,500 | $7,075 | $12,500 |
| In 2022 Dollars | $22,400 | $24,400 | $30,000 |
According to an internal memo, in 1979 annual sales were estimated at 454 units.
Pictures
-
-
7L5 Opt. 33 in 7633 mainframe
-
7L5 Opt. 32
-
7L5 Opt. 25
-
7L5 in 7844
-
7L5 Opt. 25 without B - (Save A)
-
7L5 Opt.25 tracking generator plug-in
For internal pictures see the repair section.