Alembic Guitars Club

Alembic products => Alembic Basses & Guitars => Topic started by: DrawbarDave on March 21, 2021, 09:13:07 AM

Title: New volume pot needed for early F2B
Post by: DrawbarDave on March 21, 2021, 09:13:07 AM
Hello I have an F2B s/n 356 and I need to change out channel A's volume pot. I have exercised it many times and it is not coming good. I am a Hammond organ tech so am familiar with the care of the rest of the tube circuit.

What I wanted to ask is how to get hold of Mica or somebody else who could sell me a replacement pot. I have used the email address that I used a few years ago when I bought a 240V transformer for the preamp. Are the company closed due to the pandemic.

Many thanks in advance
Dave
Title: Re: New volume pot needed for early F2B
Post by: lbpesq on March 21, 2021, 09:42:48 AM
They are still there, though they did move just before the pandemic hit.   I would just call them.  The number is under “Contact Us” on the main site.  And welcome to the forum!

Bill, the guitar one
Title: Re: New volume pot needed for early F2B
Post by: StephenR on March 21, 2021, 09:52:14 AM
A phone call between the hours of 11AM and 4PM PST is usually the best way to to contact them.
Title: Re: New volume pot needed for early F2B
Post by: DrawbarDave on March 21, 2021, 10:40:19 AM
Thanks. I’m in the UK so I’ll have to arrange international calling with my phone provider.
Title: Re: New volume pot needed for early F2B
Post by: pauldo on March 21, 2021, 02:29:52 PM
Thanks. I’m in the UK so I’ll have to arrange international calling with my phone provider.

Alternatively you could go here:
https://club.alembic.com/index.php?action=profile;u=3 (https://club.alembic.com/index.php?action=profile;u=3)
and recognize that there is a small 'envelope' under Mica's picture.
Click on it and you can e-mail her.

Paul (who wonders if you work on Milling machines -  the "Drawbar" prefix....?)
Title: Re: New volume pot needed for early F2B
Post by: jacko on March 22, 2021, 02:25:38 AM

Paul (who wonders if you work on Milling machines -  the "Drawbar" prefix....?)

Or Steam locomotives :)

Graeme
Title: Re: New volume pot needed for early F2B
Post by: adriaan on March 22, 2021, 04:40:21 AM
Not sure whether I'm missing a joke, but the obvious reference for the "drawbar" is "I am a Hammond organ tech".
Title: Re: New volume pot needed for early F2B
Post by: jacko on March 22, 2021, 05:06:53 AM
in my world view, it's the big lump of metal joining a steam locomotive to it's Tender.
Title: Re: New volume pot needed for early F2B
Post by: lbpesq on March 22, 2021, 10:23:02 AM
A place where artists go to get drunk?

Bill, tgo
Title: Re: New volume pot needed for early F2B
Post by: DrawbarDave on March 27, 2021, 06:57:37 AM
Not sure whether I'm missing a joke, but the obvious reference for the "drawbar" is "I am a Hammond organ tech".

Yes you're right. It's Hammond organs; drawbardave.co.uk
Title: Re: New volume pot needed for early F2B
Post by: pauldo on March 28, 2021, 05:38:02 PM
It so happened that 2 weeks ago our Sharp Mill’s drawbar needed to be refurbished.

https://en.wikipedia.org/wiki/Drawbar_(machine_tool (https://en.wikipedia.org/wiki/Drawbar_(machine_tool))


 Obviously the term is diverse and multi-functional!   :D


I do love the sound of a B3.
Title: Re: New volume pot needed for early F2B
Post by: DrawbarDave on April 24, 2021, 08:51:22 AM
Does anyone know who supplies the volume pots? I’m losing the will to live waiting for a response.
Title: Re: New volume pot needed for early F2B
Post by: rv_bass on April 24, 2021, 10:34:24 AM
Hi DrawbarDave,  have you tried calling Alembic?  707.523.2611

Title: Re: New volume pot needed for early F2B
Post by: JimmyJ on April 24, 2021, 01:02:55 PM
Hey Dave,

I am not sure of the exact part number or manufacturer but believe it is a stock 1M ohm rotary which you should be able to easily source.  For instance, here's a few:
https://uk.farnell.com/c/passive-components/potentiometers-trimmers-accessories/rotary-potentiometers?track-resistance=1mohm (https://uk.farnell.com/c/passive-components/potentiometers-trimmers-accessories/rotary-potentiometers?track-resistance=1mohm)

The question to is, has the pot really failed or is there something else happening like some voltage across the pot that shouldn't be there?  You could in the meantime, try swapping the tubes between channels to be sure the problem doesn't follow (wouldn't think it would), or even swapping the volume pots between channels to be sure it is that specific pot.  Or simply replace it with a new 1M pot and see what happens.

One way or another, I think with your skills you should be able to make the "field repair" without needing to source that component from Alembic.  You can do it!

Jimmy J
Title: Re: New volume pot needed for early F2B
Post by: mica on April 24, 2021, 07:28:27 PM
Dave I sent you an invoice and a separate email. Have you checked your spam folders? I will resend...
Title: Re: New volume pot needed for early F2B
Post by: mica on April 24, 2021, 07:32:49 PM
Also one of the pieces of information I needed to ship your part was your mailing address. I've carefully looked through our emails and see no sign, and I don't see any replies in spam - do you always use the same email address? I have an invoice for someone with your same name, but a different email address is why I ask.