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In Reply to: RE: my bias is running away on one side even with the bias backed all the way off on that side! posted by immatthewj on July 23, 2020 at 14:35:10:
The black 540 with silver stripe are "diodes". You're DVM should have a diode check option so you can recheck those with it. Negative probe goes to the silver stripe side. You should get a reading. Reversing the DVM leads should read infinite. Do this to both diodes and see how they compare.
If the Jensen cap had the wires unscrewed when tested, then indeed it is bad. BUT, replace it with a cheap cap first to see if that was the problem. So if you order a replacement Jensen, also order another cap or two of something less exotic to try first. Don't want to ruin a new Jensen.
Electrolytic caps should last about 20 years. Depending on age, you may wish to replace them all.
I've provided a link for an on-line resistor calculator as a quick was to determine values when only color bands are present on the resistor. I couldn't find the one I normally use, but this one looks ok.
Cheers!
Jonesy
"I know just enough to get into trouble. But not enough to get out of it."
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Follow Ups
- RE: my bias is running away on one side even with the bias backed all the way off on that side! - Jonesy 17:32:42 07/23/20 (28)
- RE: my bias is running away on one side even with the bias backed all the way off on that side! - immatthewj 23:48:12 07/23/20 (27)
- RE: my bias is running away on one side even with the bias backed all the way off on that side! - Jonesy 05:46:38 07/24/20 (26)
- RE: my bias is running away on one side even with the bias backed all the way off on that side! - immatthewj 10:35:27 07/24/20 (25)
- RE: my bias is running away on one side even with the bias backed all the way off on that side! - Jonesy 11:03:04 07/24/20 (24)
- RE: my bias is running away on one side even with the bias backed all the way off on that side! - immatthewj 11:27:56 07/24/20 (23)
- RE: my bias is running away on one side even with the bias backed all the way off on that side! - Jonesy 17:04:11 07/24/20 (22)
- Thank you! And cap questions? - immatthewj 22:03:52 07/25/20 (21)
- RE: Thank you! And cap questions? - Jonesy 23:42:26 07/25/20 (20)
- RE: Thank you! And cap questions? - immatthewj 17:12:33 07/26/20 (19)
- RE: Thank you! And cap questions? - immatthewj 17:24:29 07/26/20 (18)
- RE: Thank you! And cap questions? - immatthewj 17:44:30 07/26/20 (17)
- RE: Thank you! And cap questions? - Jonesy 18:53:48 07/26/20 (16)
- RE: Thank you! And cap questions? - immatthewj 11:04:37 07/27/20 (15)
- RE: Thank you! And cap questions? - Jonesy 11:44:28 07/27/20 (14)
- RE: Thank you! And cap questions? - immatthewj 14:24:26 07/27/20 (13)
- RE: Thank you! And cap questions? - Jonesy 09:33:47 07/28/20 (11)
- RE: Thank you! And cap questions? - immatthewj 11:48:52 07/28/20 (10)
- ... also a reminder bias is set with no signal. It goes up and down once signal applied. (nt) - Jonesy 15:01:40 07/28/20 (8)
- RE: ... also a reminder bias is set with no signal. It goes up and down once signal applied. (nt) - immatthewj 20:25:26 07/28/20 (7)
- RE: ... also a reminder bias is set with no signal. It goes up and down once signal applied. (nt) - Jonesy 21:27:18 07/28/20 (6)
- RE: ... also a reminder bias is set with no signal. It goes up and down once signal applied. (nt) - immatthewj 12:50:31 07/29/20 (5)
- Economic "in circuit" capacitor meter - Jonesy 14:50:59 07/29/20 (4)
- RE: Economic "in circuit" capacitor meter - immatthewj 14:59:45 07/29/20 (3)
- RE: Economic "in circuit" capacitor meter - Jonesy 15:11:12 07/29/20 (2)
- RE: Economic "in circuit" capacitor meter - immatthewj 15:24:56 07/29/20 (1)
- RE: Economic "in circuit" capacitor meter - immatthewj 16:26:12 08/05/20 (0)
- RE: Thank you! And cap questions? - Jonesy 14:44:08 07/28/20 (0)
- RE: Thank you! And cap questions? - Jonesy 14:54:19 07/27/20 (0)