GB for DC coupled B1 buffer with shunt PSUs

[AndrewT]

Hi Gov,
the relay is just a remote switch that connects and disconnects the output from the output terminals.

The coil and it's rating is not in the audio circuit.
The DCB1 works with a range of coil currents. That's why you have the regulator and the dropping resistors.

 

[Tea-Bag]

GB for Mesmerize "Blue" has ended. Order pending w/ circuit board maker.

 

[govilauration]

Hi Gov,
the relay is just a remote switch that connects and disconnects the output from the output terminals.

The coil and it's rating is not in the audio circuit.
The DCB1 works with a range of coil currents. That's why you have the regulator and the dropping resistors.

Hi Andraw,

thank you for your answer, fernall is much easier for my ordering parts

 

[johnwmclean]

Tea-bag, can you please confirm, I’ve sent money for 2 boards, 15 relays.

 

[AndrewT]

two Mez require 14 relays

 

[Tea-Bag]

Tea-bag, can you please confirm, I’ve sent money for 2 boards, 15 relays.

Your all set.

 

[Tea-Bag]

Here is the buy list so far. Username, board # and relay # orderd.
janpo 1 7
Rodeodave 1
1MOR 1 9
CxTurbo 10
qusp 6
Cobra2 15
dlhasha 1
mariush 2 7
tincanear 2 8
erikdebier 1 7
dshambal 3 7
10y 2
NightAnole 1
Horio 2 15
ramallo 2 7
lpm76 2 16
BDL 1 10
df_genius 2 0
aspringv 2 10
totohung 2
govilaurat 5
jameshillj 2 4
Marcocet 1 7
prooptiki 3 15
Nikon197 2 10
wuffer 7
particlem 2 7
torem 1 7
Ferrari 2 16
johnwmcl 2 15
presbel 10
maelcum 2 10
Russellc 1
hawall841 1 7
maillard 1 5
Eric 3 10

 

[Eric]

Many thanks for your efforts, Tea-Bag! I was disappointed that I missed out on the first go-round and very pleased to see another group buy for the DCB1!

Thank you!
Eric

 

[morpheous]

Hi All,

Are the Hypnotize boards still available? I need 1 board and one 2pole relay for the boards.

Thank you
Francesco.

 

[Tea-Bag]

Hi All,

Are the Hypnotize boards still available? I need 1 board and one 2pole relay for the boards.

Thank you
Francesco.

Morpheous,
Only the mesmerize boards are available.
They can still be used as a single or dual rail shunt supply.

 

[Tea-Bag]

Boards should arrive in second week in November and will start shipping that week.

 

[morpheous]

Hi Tea-Bag,

is possible to buy the mesmerize boards ? I need 1 boards and all relay for this borads.

Regards
Francesco.

 

[Tea-Bag]

The mesmerize boards are on order, will arrive ~ November 10th.
It's still possible to buy boards and relays, although I only ordered a few dozen extra relays.
PM me with details, I will give payment info.

 

[regal]

Is there a schematic of the mesmerize blue DCB1?

 

[Rodeodave]

I think this is the right one...resolution is not the best though.

Also see Tea-Bag's Blog: http://www.diyaudio.com/forums/blogs/tea-bag/173-old-style-dcb1-information.html#comment502

 

[Salas]

Correct. Will be just heavier copper, blue mask, plated through, double surface, but will have a shorting to ground relay.

 

[Krisfr]

I think this is the right one...resolution is not the best though.

Also see Tea-Bag's Blog: http://www.diyaudio.com/forums/blogs/tea-bag/173-old-style-dcb1-information.html#comment502

Plot the KiCad to Clipboard, then import it into an Open Office doc, then export that doc to a PDF, works great...

 

[morpheous]

Hi All,


The 2 caps 4700uf Where is the max diameter ?

 

[poseidonsvoice]

Salas,

Any idea what the bandwidth (i.e. frequency response) of the DCB1 is? I know it starts at DC. But what is its -3dB point?

Anand.

 

[Salas]

I passed 100KHz square wave like no visual difference. Did not try to Bode plot it out, since my just making do generator would wimp out anyway.