[SBE] Audimax 4440A Manual Needed

[Kim Sacks]

Thanks for the tips Henry. Bill will be working on this Audimax, he's very
familiar with the box, he just wants to have a schematic on hand as a
precaution. Do you have any idea what the switch on top of the unit is for?
-- 
Kim Sacks, KB3MZX
http://youtube.com/user/RadioCtrlDWife
www.optimod.fm


On Tue, Jul 8, 2008 at 2:47 PM, <A9xw at cs.com> wrote:


> Other than its a simple discrete amplifier system, you can increase the

> audio

> coupling caps by a factor of 10 larger and get the low frequency response

> to

> be much better, and add some vitamin C to the PS to get the noise floor

> down,

> or add a TO3 regulator device to really make it quiet. Same for the

> Volumax.

> The transistors are generic and most anything will work.  I shortened the

> attack time and wound up being louder than the first gen Optimod FM boxes.

> You can

> add a small value series resistor (abouit 4-10 ohms) in series with the

> clipper diodes and get an "over-easy" type limiting action that also

> reduces

> overshoots. That's all the improvements I know.

>

> Henry   </HTML>

>