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My first scratch built amp-5f1 style with solid state rect. Worked great for two days-very quiet. Went in third day and added a bright cap. The amp started ticking at a varying rate of a couple times/sec to many times/sec. Removed the bright cap. Still ticked. (I think the problem is unrelated to the cap change)
Tick volume from the speaker goes up and down with amp volume. Turns out I can hear the tick inside the chassis (it is currently stand alone chassis) about as loud as a ticking wrist watch. I believe it is coming from the 1N4007 diodes. I used a plastic rod with my ear at one end and the test points at the other. The sound was loud and clear from all four diodes and the snubbers riding on the diodes. I clipped off the snubbers and the click was still there. I put in new diodes and snubbers and it still ticks. This is the first time I have used ss diodes-is it possible that they make an audible mechanical or electrical noise (not amplified)?
Thanks
Tick volume from the speaker goes up and down with amp volume. Turns out I can hear the tick inside the chassis (it is currently stand alone chassis) about as loud as a ticking wrist watch. I believe it is coming from the 1N4007 diodes. I used a plastic rod with my ear at one end and the test points at the other. The sound was loud and clear from all four diodes and the snubbers riding on the diodes. I clipped off the snubbers and the click was still there. I put in new diodes and snubbers and it still ticks. This is the first time I have used ss diodes-is it possible that they make an audible mechanical or electrical noise (not amplified)?
Thanks