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Author Topic: HP8642B Signal Generator what are these missing parts?  (Read 1315 times)

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Offline Johnny10Topic starter

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HP8642B Signal Generator what are these missing parts?
« on: April 30, 2018, 05:53:04 pm »
Just bought a HP8642B Signal generator and after working the front panel I cannot get a signal out of the thing.
I can set controls and such.

So I opened unit and looking around I noticed missing parts.
Looking over tear down photos online I see pictures of the parts but not sure what they are.

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Tektronix TDS7104, DMM4050, HP 3561A, HP 35665, Tek 2465A, HP8903B, DSA602A, Tek 7854, 7834, HP3457A, Tek 575, 576, 577 Curve Tracers, Datron 4000, Datron 4000A, DOS4EVER uTracer, HP5335A, EIP534B 20GHz Frequency Counter, TrueTime Rubidium, Sencore LC102, Tek TG506, TG501, SG503, HP 8568B
 

Offline Johnny10Topic starter

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Re: HP8642B Signal Generator what are these missing parts?
« Reply #1 on: April 30, 2018, 06:02:27 pm »
Errors : Looks like error is from missing A19  J1 and J2 parts.
« Last Edit: April 30, 2018, 06:04:48 pm by Johnny10 »
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Tektronix TDS7104, DMM4050, HP 3561A, HP 35665, Tek 2465A, HP8903B, DSA602A, Tek 7854, 7834, HP3457A, Tek 575, 576, 577 Curve Tracers, Datron 4000, Datron 4000A, DOS4EVER uTracer, HP5335A, EIP534B 20GHz Frequency Counter, TrueTime Rubidium, Sencore LC102, Tek TG506, TG501, SG503, HP 8568B
 

Offline vtp

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Re: HP8642B Signal Generator what are these missing parts?
« Reply #2 on: April 30, 2018, 09:02:54 pm »
Someone stole its attenuators.

33321SC and 33321SD with proper control voltage may be suitable replacements. Amplitude accuracy will be off though, calibration includes the original attenuators.
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