I replaced the volume pot on my tube preamplifier.


Replaced the two mono Alps pots in phono preamp with Tocos (Tokyo Cosmos), RV24 units. I heard good things about these pots on other forums. Fair bit of work getting them to fit into the Croft 25R. I had to loosen the tube boards and drill out the mounting holes for the larger threads. The pots were only $26 for both inc tax and shipping. Huge improvement in speed, clarity, solidity, and transparency. I'm blown away. 

noromance

Well I have to say I bought 2 mono ones on ebay one went scratchy in a short time.

I lived in Alaska at the time. 

So I contacted the Company

Kayoko Shinbori, Sales Dept.

TOKYO KO-ON DENPA CO., LTD.

56 Orimoto-cho, Tsuzuki-ku

Yokohama, Kanagawa 224-0043

JAPAN

Phone: +81-45-470-9341

Email: kayoko.s@ko-on.co.jp

This guy was so great  I never looked back.

They make them

to order now days 5 years ago.

One of the best deals in Audio in my mind!

Well worth the wait.!

I bought 2 each the MONO version

The Rep was awesome.

The rest was musical bliss to this day

@rowd  Thanks. I use mono pots too.

Maybe we need to pressure manufacturers to use better pots.

ROWD and I have been through this and if anyone does not think this is a MAJOR ISSUE  they cannot hear….here is my short story I by accident ruined a khozmo attenuator while painting a faceplate on a dual mono passive and pulled the other out and then substituted with ALPS and I was floored which led me to another world….and as a result I even took a 5K ARS SONUM FILHARMONIA AND ripped it apart to replace the ALPS with a pair of KHOZMO which now set externally on the chassis and the difference made a 5K integrated sound like a a 10 k integrated…..CHEAP POTS TURN MY STOMACH.