D*A*M - Grease Box

G5120fx · Post by **G5120fx** » 27 Feb 2012, 09:11

It would be cool if you could name the wires too. It´s not a problem, there´s a schematic in this threat but, if you redraw it (you don´t have to; just make a note that the positive side is shaded) you could add it.

I´m still waiting for some "Mojo" Components, then I´ll build it.

beedotman · Post by **beedotman** » 27 Feb 2012, 12:03

G5120fx wrote:It would be cool if you could name the wires too. It´s not a problem, there´s a schematic in this threat but, if you redraw it (you don´t have to; just make a note that the positive side is shaded) you could add it.

I´m still waiting for some "Mojo" Components, then I´ll build it.

Will do!

beedotman · Post by **beedotman** » 27 Feb 2012, 20:39

Here it is!

beedotman · Post by **beedotman** » 27 Feb 2012, 21:22

And another two layouts for small veroboards which should fit easily 1590B and 125B enclosures.
Trannies could be mounted on sockets.
One with 22K trimpot for Q3 collector bias and another with fixed bias resistor.
I've made both so consider these as verified.

beedotman · Post by **beedotman** » 27 Feb 2012, 21:27

And couple of boards ready for trannies and wires...
Jumpers are placed under board so it looks quite clean

sinner · Post by **sinner** » 27 Feb 2012, 22:16

Sexy, the orange caps are Philips brand?

beedotman · Post by **beedotman** » 27 Feb 2012, 23:00

sinner wrote:Sexy, the orange caps are Philips brand?

Nah... Vishay BC Components

http://www.banzaimusic.com/Vishay-BC-0-1uF-100V.html

IvIark · Post by **IvIark** » 27 Feb 2012, 23:17

BC Components used to be Philips Components, and Vishay bought them. So Philips, BC or Vishay they're all pretty much the same thing. The date code will be what ties down what the company name was at the time!

beedotman · Post by **beedotman** » 18 Mar 2012, 23:40

Refreshed layout with full wiring.

beedotman · Post by **beedotman** » 12 Jul 2012, 14:02

Latest units with OC82DM has 680K/68K bias string on Q1B and 15K on Q3C.
And really fat transistor legs

John Lyons · Post by **John Lyons** » 04 Mar 2013, 03:24

I don't suppose anyone has had a peek at the GB-83 Silicon Grease Box have they?

Post by **pamaz** » 04 Mar 2013, 08:07

https://www.freestompboxes.org/viewtopic ... ilit=gb+83

20 seconds using the search function....

beedotman · Post by **beedotman** » 04 Mar 2013, 08:19

don't be rude

John Lyons · Post by **John Lyons** » 04 Mar 2013, 21:39

pamaz wrote:https://www.freestompboxes.org/viewtopic ... ilit=gb+83

20 seconds using the search function....

Easy cowboy, I did search and it didn't come up.
I found this thread though.
Must have only given it 15 seconds.

Someone was kind enough to send me a link, thanks.

John

roseblood11 · Post by **roseblood11** » 05 Jul 2014, 20:57

I'm just building the silicon version and your scarab deluxe - it will be interesting to compare them side by side!

beedotman · Post by **beedotman** » 04 Dec 2015, 09:32

New GB-88 version was introduced with added output capacitor blend (between 4700pF and 220nF).
Also input cap increased to 22nF in place of 15nF. Rest of compontents looks standard for 220K/47K bias string.

D*A*M - Grease Box [traced]

DAM - Grease Box [traced]