| ??? 11/19/13 21:11 Read: times |
#190152 - Tesla says: no Responding to: ???'s previous message |
Just for the heck of it, I looked up what used to be the most common (and usually the only available) potentiometer back then here in (the then) Czechoslovakia:
http://katalogy.ic.cz/TP160.html The details of given data are astonishing (including e.g. testing voltage between "live parts" and "shell", rated vibration, and similar). The wiper current is at the bottom of page 133 (Proud sberace Is) given as max. 5uA! (Indeed, they were crap and tended to develop characteristic scratchy operation in audio circuits very quickly). Turns out, they are still manufactured these days. The "modern" datasheet tends to copy the "world trend" of giving away as little information as possible.... Jan |
| Topic | Author | Date |
| Power rating of potentiometers | 01/01/70 00:00 | |
| Not the point | 01/01/70 00:00 | |
| show me such | 01/01/70 00:00 | |
| (was) incorrect | 01/01/70 00:00 | |
| not your average "pot" | 01/01/70 00:00 | |
| Specs that are not normally told.. | 01/01/70 00:00 | |
| power | 01/01/70 00:00 | |
| test bench vs field design | 01/01/70 00:00 | |
| That was kind of my point | 01/01/70 00:00 | |
| pot limits | 01/01/70 00:00 | |
| While I don't disagree ... there are different failure modes | 01/01/70 00:00 | |
| Bourns says: "yes." | 01/01/70 00:00 | |
| Tesla says: no | 01/01/70 00:00 | |
| cermet or wirewound | 01/01/70 00:00 | |
No big difference, if it all | 01/01/70 00:00 |