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Thanks for mentioning this. Since using them I have learned there is one caveat: as they only have 21 steps and are in fact linear I believe, there is a larger volume increase from step to step - it's not a 'smooth' increase in volume. So unless you're familiar w/ these kind of pots, I would recommend getting the Alps pot or similar from the Partsconnexion link. There are knobs for them on ebay. just search 'alps knob'.
I am definitely not familiar into this and I was surprised to learn that volume pot could cost $300. Geez.. Learn something new everyday.Would this Apls work? http://www.partsconnexion.com/product7387.html 100KHow do you tell whether it is linear or not? Would this one work better?http://www.partsconnexion.com/product7386.html 250K I don't know what makes the 100K and 250K different.
Go for the 50k...
I think the cost from Partsconnex is expensive adding handling and shipping fee. I'll look for eBay...
Yeah, but it's a 'safe' option if you're not experienced w/ using potentiometers. The problem w/ ebay is there are a LOT of fake Alps pots out there (like anything from HK/China probably), and the first link I had actually I think may be fake so I deleted it. If you feel confident in your soldering skills I can give you a link to the VERY cheap ($3?) Panasonic EVJ pots on digikey - they are very good for the money, they just don't have too much wiggle room to solder the wire...
No, I'd not bet my solder skill to be good. How about this one from PE:http://www.parts-express.com/pe/showdetl.cfm?Partnumber=023-650The shaft might be too short and I am not sure about its quality. They have 25K too.
Here you go: Amb is a good site.http://www.amb.org/shop/The Alps 50k is listed near the bottom, just scroll down. $16 bucks and I think hedoes regular usps.
I want to buy this volume pot suggested by wushuliuEbay DACT-Type Stepped Attenuator - $15 shippedEven better AND cheaperYou can find values for 20k and higher. These are frickin' great for the money.http://cgi.ebay.com/DACT-Type-21-Stepped-Attenuator-Volume-20K-for-PreAmp_W0QQitemZ200437532132QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item2eab0205e4#ht_1476wt_1202Could you suggest a knob that would fit this through Digi-Key? What are the key filters that would ensure the knob will fit the pot? (I can do the search, just need to know the right filters.)Thanks!
Anyone tried these Carli caps in the B1 for C101/C201? http://www.madisound.com/manufacturers/carli/index.phpAlso, I'm looking at these pots from DigiKey. http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=381N503-NDThoughts on either/both?
I browsed through the DIY Audio forum and found a digikey link for a knob that VERY closely matches older Nelson Pass gear knobs. I ordered one, and it fits on the stepped potentiometer that I got via Ebay from Valab... not sure if it would fit the one you are considering.Here is the digikey link:http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=226-3016-NDHope this helps.Neil
Quick question on soldering PCB board.When I solder crossover components, I'll use arligator clips as heat sinks to protect the capacitors. I haven't seen people use this practice when soldering components onto a PCB board. Is that b/c it's easier to heat up at PCB?The idea should be similar so you heat up the joint and let the joint melt the solder, not the soldering iron, right?
How did you mount the power jack? From the picture, you seem to use glue to fix it and leave a small hole for external plug in. How big the hole it is, like 1/4"?
Any suggested place to source interconnect cables? I never though I'd need these but with the preamp, I need one more set. The wires from Apex Jr are excellent!