HEWLETT PACKARD 54503A 500 MHZ DIGITIZING OSCILLOSCOPE AS IS for Repair
Nov 09, 2020
Old but a good digital scope
These scopes are getting to be over 30 years old now and showing their age.
The cal data is stored on a Dallas Semiconductor battery/static ram chip and the batteries are all going bad now. The power supply also suffer from leaking or bad caps. Keeping this in mind these scopes can be found cheap and be repaired. 500 mhz is handy if you work on 70cm ham radio rigs.
Icom IC-756PRO Ham Radio Transceiver w/ Mic + Power Cable (needs work) SN 02176
May 26, 2020
My primary SSB rig
Great radio. The grandfather of the current IC-7300. Awesome RX