067-0502-00
The Tektronix 067-0502-00 is an instrument designed for calibrating oscilloscope calibrators. It is very similar to the 067-0502-01. What are the differences?
Sherman Foy contributed the following information:
TekWiki asks the question: what is the difference? I have both units and have done an extensive review.
Looking @ the front panels [TNX 4 pix] of the –00 & the –01, it seems that the –01 dropped the X100 Amplifier section. The front panel is re-laid out, but what remains seems to be identical to the corresponding sections from the –00. IOW, the –00 is a superset and the –01 is a subset of the -00.
Note that the –00 transformer [T310] has 6 windings and the –01 transformer [also T310] has 5 windings. Some currents are different, as indicated.
I have made my own notes for the project of working on the two. Using the schematics for organization, I arrived @ the following table. I am using a re-organization of the sheets, the block diagram of the –00 and this table:
| Section | -00 | -01 | Sheet in -00 | Sheet in -01 | Sheet in proposed consolidated drawing set |
| Square Wave calibrator | Used in both | Used in both | 1 | 1 | [s/b 1] |
| X100 Amplifier | Used in -00 | Used in -01 | 2 | -- | [s/b 2] |
| Power Supply | -00 has more sections | Than –01 | 3 | 2 | [s/b 3A for -00 & 3B for -01] |
| T310 | P/N 120-0442-00 | P/N 120-0615-00 | 3 | 2 | 3A/3B |
| High voltage, B+ | 285 VRMS, 35 mA 300 VDC, 225 VDC & 100 VDC | 285 VRMS, 35 mA 300 VDC, 225 VDC & 100 VDC | 3 | 2 | 3A/3B |
| 6.3 VAC (Chopper) | Used in -00 | Used in -01, noted as 1.84A | 3 | 2 | 3A/3B |
| 100 VRMS (-100 VDC) | Used in -00, 40 mA | Used in -01, 31 mA | 3 | 2 | 3A/3B |
| 6.3 VAC (MV 6DJ8) | Used in -00 | Used in -01 | 3 | 2 | 3A/3B |
| 330 VRMS (Floating Supply) | Used in -00 | Used in -01 | 3 | 2 | 3A/3B |
| 20 VRMS (X100 Filaments) | Used in -00 | Not used in –01 T310 | 3 | 2 | 3A/3B |
| Floating power supply | Used in both; drives Square Wave MV | Used in both; drives Square Wave MV | 4 | 3 | [s/b 4] |
