Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: labb on May 23, 2020, 10:25:14 pm

Title: Parts source help
Post by: labb on May 23, 2020, 10:25:14 pm

Anyone have a source for a panel mount  10KA potentiometer with a switch?

Title: Re: Parts source help
Post by: tubeswell on May 23, 2020, 10:43:02 pm

https://www.ebay.com/itm/133403548360 (https://www.ebay.com/itm/133403548360)

Title: Re: Parts source help
Post by: vampwizzard on May 23, 2020, 10:44:14 pm

https://www.adafruit.com/product/3481

Title: Re: Parts source help
Post by: Latole on May 24, 2020, 03:40:04 am

Here; 10 K A with switch.

https://www.amprepairparts.com/pots.htm#withswitches

Title: Re: Parts source help
Post by: Latole on May 24, 2020, 03:53:29 am

Quote from: tubeswell on May 23, 2020, 10:43:02 pm

https://www.ebay.com/itm/133403548360 (https://www.ebay.com/itm/133403548360)

It is not a "A" pot.

Title: Re: Parts source help
Post by: DummyLoad on May 24, 2020, 04:50:55 am

Quote from: labb on May 23, 2020, 10:25:14 pm

Anyone have a source for a panel mount  10KA potentiometer with a switch?

push-pull actuated switch or rotary actuated switch?


--pete

Title: Re: Parts source help
Post by: Latole on May 24, 2020, 05:46:39 am

Quote from: DummyLoad on May 24, 2020, 04:50:55 am

Quote from: labb on May 23, 2020, 10:25:14 pm

Anyone have a source for a panel mount  10KA potentiometer with a switch?

push-pull actuated switch or rotary actuated switch?


--pete

IMO there is not many choice

Title: Re: Parts source help
Post by: kagliostro on May 24, 2020, 05:55:26 am

Quote

It is not a "A" pot.

Yes but from a linear you can obtain an A (log) (at the cost of a resistor)

http://www.geofex.com/article_folders/potsecrets/potscret.htm (http://www.geofex.com/article_folders/potsecrets/potscret.htm)

Franco

p.s.: seems that more than one vendor sell something usable

https://www.robot-italy.com/it/panel-mount-10k-dual-log-potentiometer-w-on-off-switch-10k-dual-log-w-switch.html (https://www.robot-italy.com/it/panel-mount-10k-dual-log-potentiometer-w-on-off-switch-10k-dual-log-w-switch.html)

https://core-electronics.com.au/panel-mount-10k-log-potentiometer-w-on-off-switch-10k-log-w-switch.html (https://core-electronics.com.au/panel-mount-10k-log-potentiometer-w-on-off-switch-10k-log-w-switch.html)

https://www.ebay.co.uk/p/1876087718?iid=283732331804 (https://www.ebay.co.uk/p/1876087718?iid=283732331804)

https://weffsas.com/shop/panel-mount-10k-log-potentiometer-w-on-off-switch-10k-log-w-switch/ (https://weffsas.com/shop/panel-mount-10k-log-potentiometer-w-on-off-switch-10k-log-w-switch/)

This is for PCB but usable also on panel and has a PP switch instead of a rotary switch
https://www.musikding.de/Potentiometer-10k-log-pcb-DPDT (https://www.musikding.de/Potentiometer-10k-log-pcb-DPDT)

Title: Re: Parts source help
Post by: bmccowan on May 24, 2020, 07:43:43 am

Vampwizard - thanks for pointing to Adafruit. I was unaware of them. I scrolled to the bottom of their about us page and saw this quote.
“ Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.”
Marie Curie
That made my morning.

Title: Re: Parts source help
Post by: labb on May 24, 2020, 08:08:41 am

Thanks Guys..Most of those suppliers I have never heard of...

Title: Re: Parts source help
Post by: Latole on May 24, 2020, 01:33:33 pm

Quote from: labb on May 24, 2020, 08:08:41 am

Thanks Guys..Most of those suppliers I have never heard of...

Not even amprepairparst who advertises it on the web?
As my screen shot show ?

Title: Re: Parts source help
Post by: PRR on May 24, 2020, 03:38:25 pm

> from a linear you can obtain an A (log) (at the cost of a resistor)

Not for all cases.

Title: Re: Parts source help
Post by: kagliostro on May 26, 2020, 05:01:37 pm

Quote

Not for all cases.

At the moment I remember Log Taper and Reverse Log Taper (that can be obtained adding a resistor)

Which are the kind of Taper that can't be obtained ?

Or are you saying that the thing is related to the circuit in which the pot is used ?

Thanks

Franco