HP410B.  Hewlett Packard's high frequency vacuum tube voltmeter.

DESCRIPTION: This class  of VTVM combines an AC voltmeter covering from the audio to radar frequencies and a DC voltmeter with more than 100 megohmes of input impedance.

SPECIFICATIONS:
 

• Voltage measurement ranges: 1 to 300v full scale in 6 ranges
• +/- 3% of FS scale
• AC Frequency response to 700mhz
• DC Input Z: 122 megohmes,
• AC Input Z: 10mhz at low frequencies, dropping off at higher frequencies
• Vacuum tube unit
• Analog meter readout

We refurbish these for you, and return a standard state-of-the-art piece of test equipment. Includes new meter face, repair or replace test leads, paint cabinet, replace leather handle and a completely refurbish the electronics -- replacing components as needed.

Please be sure your VTVM is complete and all parts are included. We can supply any missing parts, leads, knobs as necessary.

• Ready to purchase an HP 410B ? We will custom build an HP 410B for you, lead time 5~10 working days. The instrument is complete and ready to use,
  -- Cost $500 plus shipping to the lower 48.
  -- Shipping is Fed Ex insured for purchase price to the lower 48.

• Please email to Ashley40@aol.com to order your instrument.

• Already own this instrument? Send it to us for a complete re-work. Email for pricing to Ashley40@aol.com

* Please note that the RF Probe vacuum tube, if replacement is needed, is an additional $125.00.

Refurbished instrument cost is exclusive of packaging (double boxing for all electronics) and shipping costs.