38 dB Pot Re: [Boatanchors] attentuation pad

[Revcom Electronics]

Daven attenuators very popular in broadcasting, professional
audio and lab work.  Most are very precisely built.

Alas they have given way to photo optic coupled circuits
that have no mechanical contacts with the controlled circuit
and mostly are now the "slider" type.

Broadcasters used mostly 600ohm type.

Rod
K0EQH

----- Original Message -----
From: "RJ Mattson" <rjmattson at hvi.net>
To: <boatanchors at mailman.qth.net>
Sent: Monday, April 23, 2007 3:17 PM
Subject: 38 dB Pot Re: [Boatanchors] attentuation pad


> I have these 100K Ohm - 2 dB per step pots that I have been hording for
> years.
> They are made by Daven Co. NJ
> Each one has an unique serial# and have an intricate detent wiper for each
2
> dB.
> What were they used for and is there any ham application?
> bob...w2ami
>
>
> _______________________________________________
> Boatanchors mailing list
> Boatanchors at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/boatanchors
> ** List Administrator - Duane Fischer, W8DBF/W9WZE **
> ** For Assistance: dfischer at usol.com **
> $$ For vintage radio info, see the HCI web site $$
> http://www.w9wze.org
>
>