Products > Test Equipment

HP 8904A Options

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davorin:
Hello

I just received an old HP8904A signal generator with no options installed...

Is there a way to still get the options keys for the software options?


PedroDaGr8:
With that generation the options may actually be hardware modules that get installed. Not sure because it's appearance is right on the border between actual hardware options abd software key based options.

davorin:
Well...currently no need for options...as the device went up in smoke with just being plugged in, but not powered up...

From my experience it must be burned resistor(s) (o;

max666:
Just out of curiosity; you did check if the voltage select switch is in the 230 V position, right?

Options:
001    Adds three more identical internal synthesizers (channels) which either can modulate the first synthesizer or be summed to the output
002    Adds second internal synthesizer and output
003    Adds fast hop and digital modulation
004    Connectors on rear panel only (not available with Option 005 or 006)
005    Adds unit to unit phase synchronization
006    Changes output 1 from a 50 Ohm output to a transformer-coupled, 600 Ohm balanced output
61024    Rack-mount Kit for a single HP 8904A
61025    Rack-mount Kit for mounting two 8904A's side by side

pretty sure those options require hardware changes, does the 8904A have software options?   :-//

davorin:
Yes..it is switched to 230V AC as it was used before in Germany...

Sadly the service manual only contains some analog section...no power supply schematics..

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