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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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pops v. cracks in a valve amp
Low frequency pops through the speaker, rather than high frequency cracks.
Would failure of 10,000uF 16V cap on DC balance to the heaters leading to pops be consistent rather than high V HT cap failure (crack noise). |
#2
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pops v. cracks in a valve amp
"Nutcase Kook " Low frequency pops through the speaker, rather than high frequency cracks. Would failure of 10,000uF 16V cap on DC balance to the heaters... ** FFS name the damn amp. ..... Phil |
#3
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pops v. cracks in a valve amp
On Mar 16, 5:01*am, "N_Cook" wrote:
Low frequency pops through the speaker, rather than high frequency cracks.. Would failure of 10,000uF 16V cap on DC balance to the heaters leading to pops be consistent rather than high V HT cap failure (crack noise). Got a scope? Use it to find where the noise comes from.... |
#4
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pops v. cracks in a valve amp
boardjunkie1 wrote in message
... On Mar 16, 5:01 am, "N_Cook" wrote: Low frequency pops through the speaker, rather than high frequency cracks. Would failure of 10,000uF 16V cap on DC balance to the heaters leading to pops be consistent rather than high V HT cap failure (crack noise). Got a scope? Use it to find where the noise comes from.... &&&& intermittant, once in an hour or so By pop = both hands clasped with palms cupped, then clap crack = 2 fingers laid over the other palm , then clap |
#5
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pops v. cracks in a valve amp
On Wed, 16 Mar 2011 13:50:49 +0000, N_Cook wrote:
boardjunkie1 wrote in message ... On Mar 16, 5:01 am, "N_Cook" wrote: Low frequency pops through the speaker, rather than high frequency cracks. Would failure of 10,000uF 16V cap on DC balance to the heaters leading to pops be consistent rather than high V HT cap failure (crack noise). Got a scope? Use it to find where the noise comes from.... &&&& intermittant, once in an hour or so By pop = both hands clasped with palms cupped, then clap crack = 2 fingers laid over the other palm , then clap Have you subbed the valves? -- Live Fast Die Young, Leave A Pretty Corpse |
#6
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pops v. cracks in a valve amp
I was hoping for learned opinion on diagnostic possibility of the f
characteristics of pops v cracks. Replaced the "heater" cap and no re-emergence of pops , hopefully not a coincidence |
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