Pictures of your diy Pass amplifier - Page 95

bassnkeys · 22nd November 2011, 06:04 PM

I built this B1 into an old Onkyo case. There is a Goldpoint stepped attenuator in the Recording Level location and the power switch is functional as well.
DSC_0099-1.JPG

6L6 · 22nd November 2011, 06:07 PM

Can we see pictures of the inside?

jackinnj · 22nd November 2011, 06:29 PM

[QUOTE=bassnkeys;2791398]I built this B1 into an old Onkyo case. There is a Goldpoint stepped attenuator in the Recording Level location and the power switch is functional as well.
DSC_0099-1.JPG[/QUOTE

I used a Sanyo case -- took contact cement and some aluminum flashing to veneer a new front to it -- this is a good technique for repurposing Japanese stuff. I use a Bessler roller knife to cut the veneer. Have also used black formica.

bassnkeys · 22nd November 2011, 06:45 PM

I didn't take any pics of the interior... maybe someday when I'm rearranging stuff again. Not much to see anyway... the standard board sourced from Pass mounted sideways down at the attenuator end. I hard wired from the Goldpoint (25K mini-V) to the board. Power comes in at the back on the opposite end and then through the power switch that was already mounted in the Onkyo. I feed it the 18V DC from an old Panasonic wall wart supply for a cordless phone... the Panasonic provides a spot on 18V with no ripple. I bypassed (jumped) the selector switch to simplify the signal path. It sounds marvelous.

momomo67890 · 28th November 2011, 08:22 AM

just finished it then realized i never cleaned the pcb

DimZ · 28th November 2011, 10:48 AM

nice ..... like the pot

here's mine dcb1

regiregi22 · 28th November 2011, 02:06 PM

Quote:

Originally Posted by momomo67890

just finished it then realized i never cleaned the pcb

Wouldn't it be better to place the trafo a bit further away from the inputs? It seems to be enough clearance. I love the attenuator, by the way

is it a Shallco?

Regards,

DimZ · 28th November 2011, 03:53 PM

its a khozmo

jleaman · 28th November 2011, 09:48 PM

Quote:

Originally Posted by regiregi22

Wouldn't it be better to place the trafo a bit further away from the inputs? It seems to be enough clearance. I love the attenuator, by the way

is it a Shallco?

Regards,

it's a medical grade shielded transformer, no need for space

momomo67890 · 28th November 2011, 10:28 PM

Quote:

Originally Posted by regiregi22

Wouldn't it be better to place the trafo a bit further away from the inputs?

Regards,

i did those wires quick to test it. today i went and cleaned pcb and added a thick copper shield to both cables and rerouted them to make it look cleaner.

22nd November 2011, 06:07 PM	#942
6L6 diyAudio Member Join Date: Oct 2010 Location: Denver, Colorado	Can we see pictures of the inside? __________________ llustrated Build Guides - Pass Pearl 1 - Pass B1 - - Pass F5 - Pearl 2 - -O2 HPA - - Pass F4

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22nd November 2011, 06:29 PM	#943
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	[QUOTE=bassnkeys;2791398]I built this B1 into an old Onkyo case. There is a Goldpoint stepped attenuator in the Recording Level location and the power switch is functional as well. DSC_0099-1.JPG[/QUOTE I used a Sanyo case -- took contact cement and some aluminum flashing to veneer a new front to it -- this is a good technique for repurposing Japanese stuff. I use a Bessler roller knife to cut the veneer. Have also used black formica.

22nd November 2011, 06:45 PM	#944
bassnkeys diyAudio Member Join Date: Feb 2011 Location: MN	I didn't take any pics of the interior... maybe someday when I'm rearranging stuff again. Not much to see anyway... the standard board sourced from Pass mounted sideways down at the attenuator end. I hard wired from the Goldpoint (25K mini-V) to the board. Power comes in at the back on the opposite end and then through the power switch that was already mounted in the Onkyo. I feed it the 18V DC from an old Panasonic wall wart supply for a cordless phone... the Panasonic provides a spot on 18V with no ripple. I bypassed (jumped) the selector switch to simplify the signal path. It sounds marvelous.

28th November 2011, 08:22 AM	#945
momomo67890 diyAudio Member Join Date: May 2010	just finished it then realized i never cleaned the pcb

28th November 2011, 03:53 PM	#948
DimZ diyAudio Member Join Date: Nov 2007 Location: athens	its a khozmo