Amp Attenuator (Was:help for a newbie)

[coupie666]

Hi guys. im new to the forum but hope to become a regular. hope i post this in the right section but here goes. i am building an attenuator for my class 5 combo. unfortunattely i could not get a 16 ohm l pad so i have got an 8 ohm stereo which i believe can be wired to become 16 ohm. my question is how do i get this l pad to work with this circuit....?

http://cpc.farnell.com/_/at-60st/high-power-l-pad-stereo/dp/LS00548?Ntt=HIGH+POWER+L-PAD+-+STEREO

http://guitarprojects.weebly.com/diy-attenuator.html

any help or diagrams anyone could give me would be much appreciated!!!

Mod's note: Clear topic titles helps you and others. Welcome to the forum!

[artifus]

http://www.bcae1.com/spkrmlti.htm
http://minornotes.com/speakerdiagrams.html

[coupie666]

i guess i should have said instead of having 3 connections on the l pad i will have 4 i understand how to wire it in series but from the above circuit build i am wondering how to incorporate my l pad into the circuit.

http://www.diystompboxes.com/smfforum/index.php?topic=88931.msg753017#msg753017

i have wired the l pad to get it in series at 16 ohm but wondered how to get the circuit on http://guitarprojects.weebly.com/diy-attenuator.html to work with it. sorry if im not making much sense lol

[PRR]

Simple series does not work. You may have already found the right way:



> how to get the circuit on ... to work with it.

Don't.

That plan's "brite switch" puts 4.7uFd across the speaker and across the amplifier (when way down).

Small-mid tube amps will tolerate that.

Many-many transistor amps will freak-out and burn up (now or eventually).

Omit the bright-switch.

Try just omitting the bypass. Full-up is nearly the same except a few high-strung tube amps.

[DavenPaget]

Small-mid tube amps will tolerate that.

Many-many transistor amps will freak-out and burn up (now or eventually).

Omit the bright-switch.

Try just omitting the bypass. Full-up is nearly the same except a few high-strung tube amps.

Okay , let me say to those people who thinks sand-state is bad because of this , no .
Silicon trannies have very low a impedance , say , 0.2ohms .
If you place a cap there it will too charge up the cap at the ESR+impedance of the amp which is pretty crazy . That's alot of current flowing through it will definitely freak out since there's nothing to limit the amp .
Tube amps have very high a impedance and even after OPT (obviously) , is probably fixed at 8R ? If you select that .