Remote control kits

[piero7]

Originally Posted by Renron

Hell yes there's DC. It powers the board!
Nothing in front of it but an Oppo BDP-83 and John Broskie's Aikido tube board after it.

Changed to High quality 100K resistors and now I don't get 0 volume either!
I'm with ya Piero7.......now where's my hammer???

Ron

Yo renron, I'm still waiting for the relays...

For the hammer, be patience

[mcs]

Originally Posted by piero7

DC in the path?

Yes, there's sometimes a DC off-set on the output of signal sources. This causes clicks when the DC is connected/disconnected by an attenuator.

Why didn't you state on your site that you controller can not full muting? Have you even seen a volume controller that can not reach volume zero?

You can reach -63dB, if the attenuator is connected and loaded correctly. That is volume zero in my system. With a 2V input signal you get about 1mV out at -63dB. If the loading is not correct, you don't get the -63dBs.

Which preamp do you have connected to the output of the attenuator? Do you have a schematic?

Why dind't you reply to my mails? I have payed money for your volume control pal...

Sorry. I had work problems (real work - not audio) that left me no time to even read e-mail. I have to pay the rent every month no matter how many (or few) of my customers pay me what they owe...

Best regards,

Mikkel C. Simonsen

[mcs]

Originally Posted by Renron

Nothing in front of it but an Oppo BDP-83 and John Broskie's Aikido tube board after it.

No idea if an Oppo has a DC-offset on the output. Do you have a link to the schematic of your preamp? I find Broskie's site a bit confusing

If I have the parts, I could try to duplicate the problem...

Changed to High quality 100K resistors and now I don't get 0 volume either!

You shouldn't get 0 volume. But if you get -63dB, that should be very close to 0, unless you have huge amps and horn speakers

Best regards,

Mikkel C. Simonsen

[Renron]

Mikkel,
You have always been a good guy, IMO.
at -63dB it should be 0 , zero, rein, nada.
I have 6.5" midwoofers no horns and a very old Haffler DH200 amp. (100W)
-63 is louder than a whisper, if I want silence I have to mute it.
I'm OK with the volume not being zero at -63, but the clicks embarrass the hell out of me. That's why I did not take it to "The Burning Amp 3" this year.
I'll try to find out where the DC is coming from. I'll let you know if I find anything out.

I like you Mikkel, check back here more often please.

Ron

[piero7]

Originally Posted by mcs

Yes, there's sometimes a DC off-set on the output of signal sources. This causes clicks when the DC is connected/disconnected by an attenuator.


You can reach -63dB, if the attenuator is connected and loaded correctly. That is volume zero in my system. With a 2V input signal you get about 1mV out at -63dB. If the loading is not correct, you don't get the -63dBs.

Which preamp do you have connected to the output of the attenuator? Do you have a schematic?


Sorry. I had work problems (real work - not audio) that left me no time to even read e-mail. I have to pay the rent every month no matter how many (or few) of my customers pay me what they owe...

Best regards,

Mikkel C. Simonsen

Mikkel, I also have the Broskie's Aikido with 4XE80CC, and my DAC has transformers output (give a look to the post here "experience with this dac" with galvanic isolation primary/secondary and I can assure you there's zero DC.



-63 db is not volume zero Mikkel. I loaded the controller exactly as you say in your instructions, and tried in many other ways, but no way to reach volume zero as normally should be for a volume control.

My question now is: how can we arrange to fix these two problems?

[piero7]

Ron, relays arrived right now

Mikkel, should I change the relays?

[Renron]

Thanks for the updates Piero7

[mcs]

Originally Posted by Renron

I'll try to find out where the DC is coming from. I'll let you know if I find anything out.

It could be a different problem that's causing the clicks. Piero has no DC, and still get clicks.

The problem is that none of my amps produce this problem, so it's a bit hard to find... I have found a circuit for a 9-pin Aikido, so I will try building that on one of Geek's experimenter boards. I probably won't have time until the weekend.

check back here more often please.

I do plan to!

Best regards,

Mikkel C. Simonsen

[mcs]

Originally Posted by piero7

My question now is: how can we arrange to fix these two problems?

The muting problem could be fixed with a muting relay. But adding an extra relay is not a great idea unless absolutely necessary... One solution if you need a larger range than 63dB could be 1.25dB or 1.5dB steps for a 79 or 95dB range.

The clicks is harder to solve. I'll try building an 8FQ7 Aikido to see if I get clicks also. I don't think different relays will solve the problem.

Best regards,

Mikkel C. Simonsen

[piero7]

Originally Posted by mcs

The muting problem could be fixed with a muting relay. But adding an extra relay is not a great idea unless absolutely necessary... One solution if you need a larger range than 63dB could be 1.25dB or 1.5dB steps for a 79 or 95dB range.

The clicks is harder to solve. I'll try building an 8FQ7 Aikido to see if I get clicks also. I don't think different relays will solve the problem.

Best regards,

Mikkel C. Simonsen

Well, the relays are here, I'll try.

Mikkel I don't care about muting, I want to reach volume zero on first step of the attenuator. There's a way to get that?