RE: [Harp-L] Volume control for shure 520d

["adams, john" <adams_john@xxxxxxx>]

Ok, that makes sense, but the circuit would be the same.  You could also
omit the cap if that doesn't work well with the magnetic element.

-----Original Message-----
From: harp-l-bounces@xxxxxxxxxx [mailto:harp-l-bounces@xxxxxxxxxx] On Behalf
Of Tim Dougherty
Sent: Friday, September 24, 2004 9:37 AM
To: harp-l@xxxxxxxxxx
Subject: RE: [Harp-L] Volume control for shure 520d


Kieth's description for the "Rod Mod" on the JT-30 site are specifically 
meant for a crystal element.  According to Dave Kott, the magnetic elements 
used in bullets should be around 500k.  I'm convinced that he knows more 
about bullets than anybody else on the planet.  Having said all that, I put 
5 meg pots in several of my mics with magnetic elements before I knew 
better.  The only real negative I've found is that all the volume 
adjustment occurs between 8 and 10, so minute turns of the knob result in 
big volume changes.

You can reach Dave at grbullets2@xxxxxxx

Regards,

Tim Dougherty
www.tdvp.tv/gaskets.htm



At 06:36 AM 9/24/2004, you wrote:
>This should work for any high impedance mic.
>
>http://www.jt30.com/jt30page/oldsite/piazza.html
>
>-----Original Message-----
>From: harp-l-bounces@xxxxxxxxxx [mailto:harp-l-bounces@xxxxxxxxxx] On 
>Behalf Of Ken Whitelock
>Sent: Friday, September 24, 2004 9:27 PM
>To: harp-l@xxxxxxxxxx
>Subject: [Harp-L] Volume control for shure 520d
>
>
>Gidday. I was wondering if anyone on the list has fitted a volume 
>control to their green bullet 520d. I want to fit one, but I'm looking 
>for a circuit diagram of how to do it properly. Thanks. Rev Ken.
>
>
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