7B70: Difference between revisions

From TekWiki
Jump to navigation Jump to search
No edit summary
m (changing introduction to 1969 according to 69 August supplement)
Line 4: Line 4:
image=Tek-7b70-front.jpg |  
image=Tek-7b70-front.jpg |  
caption=Tektronix 7B70|
caption=Tektronix 7B70|
introduced=1970|
introduced=1969|
discontinued=1975|
discontinued=1975|
series=[[7000-series scopes]]|
series=[[7000-series scopes]]|

Revision as of 22:29, 10 March 2021

Template:Plugin Sidebar 2 The Tektronix 7B70 is a 200 MHz time-base plug-in for 7000-series scopes. It has no delay function. For delayed-sweep applications, the 7B70 is operated in conjunction with the model 7B71 delaying timebase. The 7B70/7B71 were primarily intended for the 7704 mainframe.

The task of designing the 7B70 was inherited and completed by Murlan Kaufman.

The 7B71/7B70 were superseded by the 7B85/7B80 pair (400 MHz) in 1976.

Key Specifications

Sweep rate 2 ns/div to 5 s/div, optional ×10 magnifier
Trigger modes P-P auto, auto, norm, single

X-Y operation

The 7B70 has a dedicated switch to put it in "amplifier mode" for X-Y operation. In this mode, the Trigger Source switch controls the signal source – internal from a vertical plug-in via the trigger path, or external — and the Trigger Coupling switch controls AC vs. DC coupling. In amplifier mode, gain can be varied using an uncalibrated potentiometer.

Links

Internals

The 7B70 contains five 148-0034-00 miniature relays and one 148-0035-00. It also contains one 152-0154-00 and two 152-0125-00 tunnel diodes.

Pictures