[ForSale-Swap] FS: HP Test gear

Bry Carling AF4K bcarling at cfl.rr.com
Tue Sep 1 18:07:55 EDT 2015


FOR SALE:

1)   Hewlett Packard Model: 425A  VTVM
Specs:  Vacuum Tube DC Micro Volt Ammeter
DC Voltage Ranges: Eleven zero-center ranges in a 1-3-10 sequence with following full scale 
positive and negative values:
±10, 30, 100, 300 microvolts;
±1, 3, 10, 30 millivolts;
±0.1, 0.3, 1 volt. 
Input impedance on Voltage Ranges: 1 meg ohm ±2%; determined by input resistor which 
can be removed to provide input Z in excess of 50 megohms. 
DC Current Ranges: Eighteen zero-center ranges in a 1-3-10 sequence with following full 
scale positive and negative values.

Has no accessories, untested - sold as-is, but appears to be in good condition.
Requires 115V AC
Available for $35.00 plus shipping.

2) Hewlett Packard 415B SWR Meter. Untested - looks good. I have no specs, but looks like 
a cool gadget.  Available for $30.00 plus shipping.

73 de AF4K, Bry




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