Hewlett Packard 400d Solid State Conversion Manual

US $20

  • Charleston, West Virginia, United States
  • May 26th
I am auctioning a FETRON Solid State Conversion manual for the Hewlett Packard 400D Vacuum Tube Volt Meter. This manual has the complete schematic for the 400D  and conversion information. Shipping is free and payment via PayPal is pteferred.

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