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HEWLETT-PACKARD
JOURNAL
T E C H N I C A L I N F O R M A T I O N F R O M T H E - h p - L A B O R A T O R I E S
VOL. 1 No. 7
LISHED CALIFORNIA THE HEWLETT-PACKARD COMPANY, 395 PAGE MILL ROAD, PALO ALTO, CALIFORNIA MARCH, 1950
New 10-500 Megacycle A-M
Signal Generator
AğiY signal source intended to operate many ways exceed the performance and op
through the VHF region and into the eration of good lower frequency signal gen
UHF region encounters a transition around erators.
3 00 megacycles where a change from lumped For sheer useability, the signal generator
to distributed constants occurs. This transi is ideal: more than 1 volt into rated load is
tion has barred the development of high- available at all frequencies, the source im
quality signal generators covering the region pedance is approximately 50 ohms over the
up to 500 me. The new -hp- 608A VHF Sig entire frequency range, the output system is
nal Generator covers the range from 10 to direct-reading from 1 volt to 0.1 microvolt,
500 me with a new circuit technique