It's Wed Again

[mesmer]

Hi john,
Could you upload some pdf's so that we can etch our own?
Thanks,
Peter

 

[rich]

So we don't hijack this thread I started a thread called Revolver.

 

[Tekay]

I guess X-mas is comin' twise this year :grin:

Are 5687 black plates to any use in this circuit? Have some on the shelf just waitin' for a nice project!

 

[CJ]

I just read in my "Beatles Gear" book, which is a great book btw, that they did use the twin coral blue strats on that together.

 

[rafafredd]

If it´s not too late, put me in for three pairs of those babies!

 

[frob]

oh my god what have i missed. i menchioned months ago if any one had cloned a redd47 then kaboom. before i start in with "add me add me!!!" i must first read this novle of a thread.

 

[frob]

this has to be the fastest moving thred in the boards history. i guess im out for this run whatcha plans for the next if i can i will take 8 please.

 

[Winston OBoogie]

...

 

[rafafredd]

So, you are not having a run on this?

Well, then, I think a pair is enought for me. Let me now if I´m in the list...

Thanks for this!

 

[Zee1usa]

Quit teasing me !!! I want a pair Santa ! :razz:

 

[fazeka]

I don't think he was ever doing a run.

He just said I think that he had a few left...

I don't remember exactly and I can't find the link, but I am pretty sure that was the jist of it.

Besides, as was stated earlier, it is not something really complex to wire up PTP.

:thumb:

 

[rafafredd]

[quote author="fazeka"]
Besides, as was stated earlier, it is not something really complex to wire up PTP.[/quote]

I know, but I love PCB. I prefer PCB tube sockets than chassis mounted ones. It just seems easier to me...

Don´t you think?

 

[soundguy]

not that it matters maybe in practical applications, but under the microscope, couldnt all that heat close to a cap age them faster than if the tube was mounted on the chasis away from the pcb?

just trying hard to be the devils advocate.

dave

 

[SonsOfThunder]

W O'B,

Thanks so very much for your willingness to share what you have with us! I know that it does not make a lot of "economical" sense to post on the 'net what you are selling elsewhere. But I certainly appreciate your attitude and willingness to share and educate us all!

It is this kind of community attitude with ALL of the contributions we have that makes this place so awesome!

Merry Christmas!
Charlie

 

[fazeka]

[quote author="rafafredd"][quote author="fazeka"]
Besides, as was stated earlier, it is not something really complex to wire up PTP.[/quote]

I know, but I love PCB. I prefer PCB tube sockets than chassis mounted ones. It just seems easier to me...

Don´t you think?[/quote]

Not if you had to work on the old PCBs of those old Ampex 351 pres. That stuff leaves a bad taste in my mouth. Then again, some of those old 351s had some crappy PCBs in them... :sad:

Whatever floats your boat, dood! :thumb:

 

[MikoKensington]

Yeah, even with my iron at 20 watts the traces on the 351's want to pull off. Not to mention all the component legs are folded over under the solder. Those are a bitch.

 

[Winston OBoogie]

...

 

[wilebee]

hey John I have about 30 output transformers that are 5k/20k:600 reichenbachs that are good and flat up to 25 dbm would this ratio work well for this preamps ? Wil

Wilebee

 

[Gus]

Dave I did some tests on caps heating them up in a temp controlled oven and then testing them on a LC102. The ESR dropped I am guessing the chemistry of the electro gets better with heat. The ESR drops back to "normal" when the caps cools to room temp

I did this because people were telling me there tube amps sounded better after playing them for hours. I had installed all polypro power supply caps in my laney VC30 and friends that are good player noted it sound realy good like a warmed up tube amp.

I am not 100% sure what I found. I think it has to do with ESR and the ions in the electro moving faster with heat.

Electros are chemistry So maybe a little heat that can hurt the life helps the "sound"

 

[Winston OBoogie]

...