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Faulty switch
Can anyone tell whether this switch might be faulty:
http://patchoulian.googlepages.com/things It's the input selector switch, and the amplifier can only switch between two of the four sources. Thanks, Rob |
Faulty switch
"Rob" wrote in message
... Can anyone tell whether this switch might be faulty: http://patchoulian.googlepages.com/things It's the input selector switch, and the amplifier can only switch between two of the four sources. Thanks, Rob If the amplifier can only select two of the four sources, then, unless the wiring is at fault, almost by definition it must be the switch. If you look at the switch photo, there is no wear on two of the contacts, indicating that the switch is not making contact. However, the switch looks like it is a six-way switch, and you say there are four inputs, so perhaps it is being mechanically stopped and therefore there's no wear as the contacts have never been used. My conclusion therefore is that it's not obvious from the photos whether the switch is faulty. As you have gone this far in removing the switch, I suggest you just replace it. S. -- http://audiopages.googlepages.com |
Faulty switch
Serge Auckland wrote:
"Rob" wrote in message ... Can anyone tell whether this switch might be faulty: http://patchoulian.googlepages.com/things It's the input selector switch, and the amplifier can only switch between two of the four sources. Thanks, Rob If the amplifier can only select two of the four sources, then, unless the wiring is at fault, almost by definition it must be the switch. If you look at the switch photo, there is no wear on two of the contacts, indicating that the switch is not making contact. However, the switch looks like it is a six-way switch, and you say there are four inputs, so perhaps it is being mechanically stopped and therefore there's no wear as the contacts have never been used. My conclusion therefore is that it's not obvious from the photos whether the switch is faulty. As you have gone this far in removing the switch, I suggest you just replace it. S. Many thanks - apparently the input switch is a weak point on these amplifiers, and this is not the first time it's been replaced. It's just that it doesn't *look* broken (no me!). Can you tell from the photo how many poles it has? There aren't any model markings on the case, and the only source I've found is: http://www.partridgeelectronics.co.uk/switchesetc.htm (Lorin switches, half way down the page). Thanks, Rob |
Faulty switch
On Sun, 20 Apr 2008 09:59:55 +0100, Rob
wrote: Serge Auckland wrote: "Rob" wrote in message ... Can anyone tell whether this switch might be faulty: http://patchoulian.googlepages.com/things It's the input selector switch, and the amplifier can only switch between two of the four sources. Thanks, Rob If the amplifier can only select two of the four sources, then, unless the wiring is at fault, almost by definition it must be the switch. If you look at the switch photo, there is no wear on two of the contacts, indicating that the switch is not making contact. However, the switch looks like it is a six-way switch, and you say there are four inputs, so perhaps it is being mechanically stopped and therefore there's no wear as the contacts have never been used. My conclusion therefore is that it's not obvious from the photos whether the switch is faulty. As you have gone this far in removing the switch, I suggest you just replace it. S. Many thanks - apparently the input switch is a weak point on these amplifiers, and this is not the first time it's been replaced. It's just that it doesn't *look* broken (no me!). Can you tell from the photo how many poles it has? There aren't any model markings on the case, and the only source I've found is: http://www.partridgeelectronics.co.uk/switchesetc.htm (Lorin switches, half way down the page). Thanks, Rob What you really need is two pole four way. They have used a two pole six way, and disabled two of the ways. The Lorin 2P/6W version half way down the page looks OK. Choose on the basis of what looks like it will fit best, though. -- Pearce Consulting http://www.pearce.uk.com |
Faulty switch
In article , Don Pearce
scribeth thus On Sun, 20 Apr 2008 09:59:55 +0100, Rob wrote: Serge Auckland wrote: "Rob" wrote in message ... Can anyone tell whether this switch might be faulty: http://patchoulian.googlepages.com/things It's the input selector switch, and the amplifier can only switch between two of the four sources. Thanks, Rob If the amplifier can only select two of the four sources, then, unless the wiring is at fault, almost by definition it must be the switch. If you look at the switch photo, there is no wear on two of the contacts, indicating that the switch is not making contact. However, the switch looks like it is a six-way switch, and you say there are four inputs, so perhaps it is being mechanically stopped and therefore there's no wear as the contacts have never been used. My conclusion therefore is that it's not obvious from the photos whether the switch is faulty. As you have gone this far in removing the switch, I suggest you just replace it. S. Many thanks - apparently the input switch is a weak point on these amplifiers, and this is not the first time it's been replaced. It's just that it doesn't *look* broken (no me!). Can you tell from the photo how many poles it has? There aren't any model markings on the case, and the only source I've found is: http://www.partridgeelectronics.co.uk/switchesetc.htm (Lorin switches, half way down the page). Thanks, Rob What you really need is two pole four way. They have used a two pole six way, and disabled two of the ways. The Lorin 2P/6W version half way down the page looks OK. Choose on the basis of what looks like it will fit best, though. You could fit something -better- they've never been all that good in quality.... -- Tony Sayer |
Faulty switch
On Sun, 20 Apr 2008 11:34:50 +0100, tony sayer wrote: In article , Don Pearce scribeth thus On Sun, 20 Apr 2008 09:59:55 +0100, Rob wrote: Serge Auckland wrote: "Rob" wrote in message ... Can anyone tell whether this switch might be faulty: http://patchoulian.googlepages.com/things It's the input selector switch, and the amplifier can only switch between two of the four sources. Thanks, Rob If the amplifier can only select two of the four sources, then, unless the wiring is at fault, almost by definition it must be the switch. If you look at the switch photo, there is no wear on two of the contacts, indicating that the switch is not making contact. However, the switch looks like it is a six-way switch, and you say there are four inputs, so perhaps it is being mechanically stopped and therefore there's no wear as the contacts have never been used. My conclusion therefore is that it's not obvious from the photos whether the switch is faulty. As you have gone this far in removing the switch, I suggest you just replace it. S. Many thanks - apparently the input switch is a weak point on these amplifiers, and this is not the first time it's been replaced. It's just that it doesn't *look* broken (no me!). Can you tell from the photo how many poles it has? There aren't any model markings on the case, and the only source I've found is: http://www.partridgeelectronics.co.uk/switchesetc.htm (Lorin switches, half way down the page). Thanks, Rob What you really need is two pole four way. They have used a two pole six way, and disabled two of the ways. The Lorin 2P/6W version half way down the page looks OK. Choose on the basis of what looks like it will fit best, though. You could fit something -better- they've never been all that good in quality.... And if it were me, I'd leave all six positions active and bring a few extra bits of coax out the back for plugging other stuff in. d -- d |
Faulty switch
"tony sayer" wrote in message
... You could fit something -better- they've never been all that good in quality.... -- Cheap switches like those should never be used for low-level audio switching. Either use a far better one (with gold plated contacts, which is expensive) or electronic switching. David. |
Faulty switch
Don Pearce wrote:
On Sun, 20 Apr 2008 11:34:50 +0100, tony sayer wrote: In article , Don Pearce scribeth thus On Sun, 20 Apr 2008 09:59:55 +0100, Rob wrote: Serge Auckland wrote: "Rob" wrote in message ... Can anyone tell whether this switch might be faulty: http://patchoulian.googlepages.com/things It's the input selector switch, and the amplifier can only switch between two of the four sources. Thanks, Rob If the amplifier can only select two of the four sources, then, unless the wiring is at fault, almost by definition it must be the switch. If you look at the switch photo, there is no wear on two of the contacts, indicating that the switch is not making contact. However, the switch looks like it is a six-way switch, and you say there are four inputs, so perhaps it is being mechanically stopped and therefore there's no wear as the contacts have never been used. My conclusion therefore is that it's not obvious from the photos whether the switch is faulty. As you have gone this far in removing the switch, I suggest you just replace it. S. Many thanks - apparently the input switch is a weak point on these amplifiers, and this is not the first time it's been replaced. It's just that it doesn't *look* broken (no me!). Can you tell from the photo how many poles it has? There aren't any model markings on the case, and the only source I've found is: http://www.partridgeelectronics.co.uk/switchesetc.htm (Lorin switches, half way down the page). Thanks, Rob What you really need is two pole four way. They have used a two pole six way, and disabled two of the ways. The Lorin 2P/6W version half way down the page looks OK. Choose on the basis of what looks like it will fit best, though. You could fit something -better- they've never been all that good in quality.... I've just ordered a new switch - actually 4 for £2.50 inc - so it's not much ventured, apart from the not inconsiderable hassle of soldering everything together. Can anyone recommend a better quality switch? I gather Alps are not bad, but for volume pots? And if it were me, I'd leave all six positions active and bring a few extra bits of coax out the back for plugging other stuff in. d Good point, thanks - I may well. Rob |
Faulty switch
In article , Rob
wrote: I've just ordered a new switch - actually 4 for £2.50 inc - so it's not much ventured, apart from the not inconsiderable hassle of soldering everything together. Can anyone recommend a better quality switch? I gather Alps are not bad, but for volume pots? My experience of Alps is that both their pots and switches are excellent. The ones I chose for my own amps still work perfectly after 20+ years of daily use. You may have to choose their more expensive models, though... Slainte, Jim -- Change 'noise' to 'jcgl' if you wish to email me. Electronics http://www.st-and.ac.uk/~www_pa/Scot...o/electron.htm Armstrong Audio http://www.audiomisc.co.uk/Armstrong/armstrong.html Audio Misc http://www.audiomisc.co.uk/index.html |
Faulty switch
"Rob" wrote in message ... Don Pearce wrote: On Sun, 20 Apr 2008 11:34:50 +0100, tony sayer wrote: In article , Don Pearce scribeth thus On Sun, 20 Apr 2008 09:59:55 +0100, Rob wrote: Serge Auckland wrote: "Rob" wrote in message ... Can anyone tell whether this switch might be faulty: http://patchoulian.googlepages.com/things It's the input selector switch, and the amplifier can only switch between two of the four sources. Thanks, Rob If the amplifier can only select two of the four sources, then, unless the wiring is at fault, almost by definition it must be the switch. If you look at the switch photo, there is no wear on two of the contacts, indicating that the switch is not making contact. However, the switch looks like it is a six-way switch, and you say there are four inputs, so perhaps it is being mechanically stopped and therefore there's no wear as the contacts have never been used. My conclusion therefore is that it's not obvious from the photos whether the switch is faulty. As you have gone this far in removing the switch, I suggest you just replace it. S. Many thanks - apparently the input switch is a weak point on these amplifiers, and this is not the first time it's been replaced. It's just that it doesn't *look* broken (no me!). Can you tell from the photo how many poles it has? There aren't any model markings on the case, and the only source I've found is: http://www.partridgeelectronics.co.uk/switchesetc.htm (Lorin switches, half way down the page). Thanks, Rob What you really need is two pole four way. They have used a two pole six way, and disabled two of the ways. The Lorin 2P/6W version half way down the page looks OK. Choose on the basis of what looks like it will fit best, though. You could fit something -better- they've never been all that good in quality.... I've just ordered a new switch - actually 4 for £2.50 inc - so it's not much ventured, apart from the not inconsiderable hassle of soldering everything together. Can anyone recommend a better quality switch? I gather Alps are not bad, but for volume pots? I usually go for Elma, gold plated: http://www.elma.com/Europe/English/P...itches_30.aspx The Lorlin is pretty cheap and cheerful:-) Iain |
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