Hi
Has anyone an idea where I could get me such that linear 2-gang 25kOhm pot for audio-signal?
I've looked into all major supplier (mouser, digikey, distrelec, etc.), nothing found...
It would be for a balance-pot, according to sound-au's recommendation, here: ESP - A Better Volume Control
Has anyone an idea where I could get me such that linear 2-gang 25kOhm pot for audio-signal?
I've looked into all major supplier (mouser, digikey, distrelec, etc.), nothing found...
It would be for a balance-pot, according to sound-au's recommendation, here: ESP - A Better Volume Control
Attachments
25 is an odd value
22 and 33 are preferred values.
22 is nearer.
About 20 Rupees for Indian, Bourns or Alps will be in multiples of that
22 and 33 are preferred values.
22 is nearer.
About 20 Rupees for Indian, Bourns or Alps will be in multiples of that
See Renard series - Wikipedia
10-16-25-40-63 is Renard R5 series, seen a lot in elect. capacitor voltage ratings, but it got used for other stuff I guess. Pot values have a lot of spread so R5 is quite a sensible choice, although 1/2/5/10 series is commonest, occasionally E3 too.
Not everything uses E12/E24/...
Yep, I am considering something like that. Thing is I’m quite satisfied with the installed+working elma relay attenuator, and this jig is 10K smd (with tht-positions provided, so…)
Weird, should be easy to find.
As of value: 25k is "oldspeak", preferred values were 10 - 25 - 50 and their multiples, 22k is "newspeak" copying the "standard series", practically the same under the hood.
In any case the common values are 10 - 22 - 47 (same as before 😉 )
I have never ever seen a, say, 18k pot (sometimes find a "20k" on) , a 33k one, 68k, 82k, etc.
Maybe they exist in Mouser pages and of course you can custom order *anything* ... as long as you order 5000 or more 😉
As of value: 25k is "oldspeak", preferred values were 10 - 25 - 50 and their multiples, 22k is "newspeak" copying the "standard series", practically the same under the hood.
In any case the common values are 10 - 22 - 47 (same as before 😉 )
I have never ever seen a, say, 18k pot (sometimes find a "20k" on) , a 33k one, 68k, 82k, etc.
Maybe they exist in Mouser pages and of course you can custom order *anything* ... as long as you order 5000 or more 😉
Ok then… anyone interested in a custom pot? (Fake groupbuy) [emoji23]
Havent given up, but yes, it’s a bit weird…
It’s probably the combination of resistance, 2-gang and then linear.
Havent given up, but yes, it’s a bit weird…
It’s probably the combination of resistance, 2-gang and then linear.
If you want to use it for vol control, you do not want a linear one, but you want a pot with log characteristic.
Jan
Jan
thank you for the hint… it is for balance control 🙂
And since I‘ll only occasionally push the soundstage around, I'll rather not use a knob per channel, even if this is the mo‘ radical technique (1 pot less per channel)
And since I‘ll only occasionally push the soundstage around, I'll rather not use a knob per channel, even if this is the mo‘ radical technique (1 pot less per channel)
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We Argentines still retain some Industry, despite the Globalization onslaught, and I can easily order 100 of anything.
"Official minimum is 300 but I´m an old customer (in all meanings of the word
😛) and they can´t say no.Much easier than getting Alpha or some other monster factory interested. 😎
Not kidding:
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Those are easier to get, there´s a wider market for them.
And the hardest ones are reverse Log/Audio (C1 slope) , needed for oscillators and parametric filters.
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Lucky you—first the copa, the an attenuator ! 😀
(I found one too but it’s not looking like it was suitable for an audio-signal, it’s more like a trimpot. OTOH, I‘m not in a hurry)
(I found one too but it’s not looking like it was suitable for an audio-signal, it’s more like a trimpot. OTOH, I‘m not in a hurry)
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Oh yes, this too is an option. 
I know but didn't dare mention it 😉
I am on the lookout and of course parts are "everywhere".
Should I make it so that attenuation in the middle position is 0dB (thus by balancing I would decrease overall volume, but wouldn't dump signal-strength)?
Or build a "stepped linear ladder attenuator"? (Also in this context: can a relay-type attenuator be built to become linear instead of logarithmic? Need to exercise...)
decisions, argh!
I know but didn't dare mention it 😉
I am on the lookout and of course parts are "everywhere".
Should I make it so that attenuation in the middle position is 0dB (thus by balancing I would decrease overall volume, but wouldn't dump signal-strength)?
Or build a "stepped linear ladder attenuator"? (Also in this context: can a relay-type attenuator be built to become linear instead of logarithmic? Need to exercise...)
decisions, argh!
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