Pictures of your diy Pass amplifier

[buzzforb]

what are those wire hold downs and where did you get them?

 

[blackdod]

what are those wire hold downs and where did you get them?

What wire? Red/black and blue/black?

I use a soft-start similar to Tortello design, so I send the signal from output amp to soft-start and them from here to TRS.

Sorry for my poor English.

 

[Rodeodave]

buzzforb, I think they're called self adhesive cable tie mounts, if that's what you're referring to.

 

[buzzforb]

Thank you

 

[blackdod]

inside:

 

[jacco vermeulen]

buenas

El Rey de la Vuelta.

 

[blackdod]

Oh sorry. I wont put "But" and my movile change it for "buena"

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[jacco vermeulen]

I was referring to your twisted wires.

 

[dady]

Creo que se refiere a los soportes de los cables adheridos a las paredes de ambos gabinetes.
I guess he reefer to the hold support for the cables on the wall of both cabinets

 

[blackdod]

Thanks dady.

Ok in the PSU have a pair wire for a led (in the on/off button) and a wire from IEC to this botton. In the Amp. This wire conect the rcas with the pot.

I don't know if i need change something. Psu and Amp haven't earth ground and I'm thinking add a loop breaker for safety.

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[Rodeodave]

Thought I'd share a pic of my cap stash. 33000uF 25V BC components, roughly 1.4F in total. 6922EH for scale.

Twelve lucky caps will soon be smoothing ripples in a new headphone amp build, a sneak preview of which is in the second pic

 

[kaputt]

I am building an F6. Lundahl input transformers, Cree C2M0280120D FETs, Power supply with LCLC filter. In the picture I am checking the operating points hooked up to two lab supplies.

 

[formantjim]

Please post frequency response figures if you can. I would like to see the result of using the Lundahl and the lower input capacitance of the Crees.
Looks like you are using heatsinks from CPU's with or without fan assist?

 

[kaputt]

Hi! I got a bunch of Apple G5 processors with heat sinks and I am using these. It looks like I can get away without fans. The Lundahl 1527 measures nicer than the Jensen's specs in the datasheet. Once it is set up completely with the actual power supply I will measure frequency response anyways and I'll try to remember posting them.

 

[kaputt]

The original picture is a bit small, another try:

 

[dady]

Fantastic idea kaputt! I got a G5 on the street and took the same heatsink for next equipment

 

[redjr]

Thank you

You can get them at any Harbor Freight store or online at Monoprice.

Rick

 

[Hdonly]

Got my Pass B1 board populated. Cutting out some aluminum to build the case. It will be rack mounted with the rest of my stuff. I will be building a High Octane phono pre-amp and put both in the same case.

 

[Cinco]

Frankenstein ZV8

Here's a couple of images of my bread board Zen V8, no feed back, mono block (there are two). I've been listening to them for about a year now lime this. Just haven't had time to upgrade the parts and build a chassis.

The little heat sink is for the JFET and the big one is for the MOSFET. Wood block isolates them because I didn't use insulators, only thermal grease. Notice the switching power supply. With a CLC filter and star ground, I was able to quiet the buzzy ripple enough so that I have to put my ear a couple of inches away from the speaker to hear it.

Cinco

 

[Zen Mod]

Man Cave Industrial Fugly!