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Re: D*A*M Grease Box

Posted: 27 Feb 2012, 09:11
by G5120fx
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.

Re: D*A*M Grease Box

Posted: 27 Feb 2012, 12:03
by beedotman
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! :thumbsup

Re: D*A*M Grease Box

Posted: 27 Feb 2012, 20:39
by beedotman
Here it is! :horsey:

Re: D*A*M Grease Box

Posted: 27 Feb 2012, 21:22
by beedotman
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.

Re: D*A*M Grease Box

Posted: 27 Feb 2012, 21:27
by beedotman
And couple of boards ready for trannies and wires...
Jumpers are placed under board so it looks quite clean 8)

Re: D*A*M Grease Box

Posted: 27 Feb 2012, 22:16
by sinner
Sexy, the orange caps are Philips brand?

Re: D*A*M Grease Box

Posted: 27 Feb 2012, 23:00
by beedotman
sinner wrote:Sexy, the orange caps are Philips brand?
Nah... Vishay BC Components :)
http://www.banzaimusic.com/Vishay-BC-0-1uF-100V.html

Re: D*A*M Grease Box

Posted: 27 Feb 2012, 23:17
by IvIark
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! :mrgreen:

Re: D*A*M Grease Box

Posted: 18 Mar 2012, 23:40
by beedotman
Refreshed layout with full wiring. 8)

Re: D*A*M Grease Box

Posted: 12 Jul 2012, 14:02
by beedotman
Latest units with OC82DM has 680K/68K bias string on Q1B and 15K on Q3C.
And really fat transistor legs :D

Re: D*A*M Grease Box

Posted: 04 Mar 2013, 03:24
by John Lyons
I don't suppose anyone has had a peek at the GB-83 Silicon Grease Box have they?

Re: D*A*M Grease Box

Posted: 04 Mar 2013, 08:07
by pamaz
https://www.freestompboxes.org/viewtopic ... ilit=gb+83

20 seconds using the search function....

Re: D*A*M Grease Box

Posted: 04 Mar 2013, 08:19
by beedotman
don't be rude :blackeye :roll: :lol:

Re: D*A*M Grease Box

Posted: 04 Mar 2013, 21:39
by John Lyons
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. :horsey:
Someone was kind enough to send me a link, thanks.

John

Re: D*A*M Grease Box

Posted: 05 Jul 2014, 20:57
by roseblood11
I'm just building the silicon version and your scarab deluxe - it will be interesting to compare them side by side!

Re: D*A*M Grease Box

Posted: 04 Dec 2015, 09:32
by beedotman
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.