As far as I know there is no scan of the manual available. If you can get away without the service info, this might be of use: www.millivolt.se/4353u/ts4353u_om.pdf
Samuel
Samuel
Thanks (although I'm not sure how happy the author of the scan is with the file available for free download)!
Samuel
Artek scanned docs for Tek/HP not sure which one now. The copies on the respective company was inferior to the ones they (AM) were selling. Go figure!
All I can say is wahhhh
All I can say is wahhhh
GOT IT,
THANKS ALL!
Now to make up an IM tone(s) generator which I hope to fit in a "blank" 500 series plug-in. Suggestions?
Charles
THANKS ALL!
Now to make up an IM tone(s) generator which I hope to fit in a "blank" 500 series plug-in. Suggestions?
Charles
The only critical in a IM tone generator is the summing/output stage; the single-frequency sources can be quite simple oscillators. Check e.g. the one used in the Tek SG505, option 01--opamp, JFET, BJT and a few Rs and Cs.
Samuel
Update on this topic - before selling my 501....
The unit I have is the 501A Mod WQ. It was made as part of a test set (TS-4553U) that also included two (also modified) Tek SG 505 low distortion oscillators. This test set was apparently designed to facilitate Level / Noise / HD and two-tone IM measurements for telephone communications - as the A weighting filter in the earlier units was replaced by a C weighted message filter. My unit dates from 1991, and believe that this was the last/latest iteration of Tek's analog distortion equipment.
In (successfully) troubleshooting an intermittent switching problem, I looked thru all of the available web info. NO one has come forth with a service manual for the Test Set where any mods to the 501A would be described and documented. The previous available 501A manual dated 1987 is INCOMPLETE as it is missing the Level / THD / IM switching (schematic) info as well as the HD / IM schematics for the (optional) A13 board. With the help of a gentleman at the Tek Museum, I was able to locate the A13 board schematics and posted them on the Tek500 groups IO site.
For this Test Set, many of the boards in the Mod WQ 501A were updated. BUT, thankfully, the unit OPERATES, just like the previous 501A, with the HD and IM options (per SMPTE/DIN/CCIF standards) - but with the "C" weighting filter substituted for the "A" filter. It appears that one could reverse this substitution if you have the time/parts/inclination. The Two 505 generators were also "updated" and had different faceplates.
Charles
The unit I have is the 501A Mod WQ. It was made as part of a test set (TS-4553U) that also included two (also modified) Tek SG 505 low distortion oscillators. This test set was apparently designed to facilitate Level / Noise / HD and two-tone IM measurements for telephone communications - as the A weighting filter in the earlier units was replaced by a C weighted message filter. My unit dates from 1991, and believe that this was the last/latest iteration of Tek's analog distortion equipment.
In (successfully) troubleshooting an intermittent switching problem, I looked thru all of the available web info. NO one has come forth with a service manual for the Test Set where any mods to the 501A would be described and documented. The previous available 501A manual dated 1987 is INCOMPLETE as it is missing the Level / THD / IM switching (schematic) info as well as the HD / IM schematics for the (optional) A13 board. With the help of a gentleman at the Tek Museum, I was able to locate the A13 board schematics and posted them on the Tek500 groups IO site.
For this Test Set, many of the boards in the Mod WQ 501A were updated. BUT, thankfully, the unit OPERATES, just like the previous 501A, with the HD and IM options (per SMPTE/DIN/CCIF standards) - but with the "C" weighting filter substituted for the "A" filter. It appears that one could reverse this substitution if you have the time/parts/inclination. The Two 505 generators were also "updated" and had different faceplates.
Charles