EA PAS Upgrade Kits Forum

Everyone hear have a Very Merry Christmas and a Happy New Year.

Don"t know for sure if this is the place to post, but
I want to wish everyone hear a Very Merry Christmas and a Happy New Year..

Just curious, is the chassis the one with the revised capability to use the before mentioned new upcoming PAS Transformer? In am guessing (Note: just a guess) that the new transformer, along with the Z-PSU, will be able to handle a 7 tube setup. Now if this is true will you be offering a Z-PSU kit ...

fp2000 wrote: Fri Feb 16, 2024 8:23 pm Looks very nice. I do like the black face plate. It would go very nicely with some exotic wood. But most importantly is how it sounds.

Yes I would like to use Macassar Ebony, it would math the wood used on my speakers. Prelim checks shows the sound to be quite nice.

Here is the back label. I made several different colors: Black Ink on Glossy Gold Foil, Back lettering on Gloss White, Blue and Orange lettering on Gloss Black and the one I finally picked was Black, Blue and Orange on Glossy Silver foil If the back plate was black then the other labels would look ...

Well This is the "Almost" finished product. Some tweaks to the front panel may be done in the future like lower and move to right the "Dynakit Stereophonic Preamplifier" text and if there is another mod that comes out that would effect the panel.

https://imagizer.imageshack.com/v2/320x240q70/922 ...

Here's an update on my progress. Closing in on finishing the project unless Erhard comes up with a filter mod and I am ready with the changes I will have to make to incorporate it.
1st up: I noticed that I had not posted the RevC Diagram:

https://imagizer.imageshack.com/v2/280x200q70/923/idISwC ...

The High Frequency "Scratch" filter who's response is -3db @ 6.5Khz and a -16db per octave roll off per "Dynaco Performance Testing part 2: The PAS Line stage by George Ronnenkamp of Pacific Audio Regenesis". The is the only remaining front panel control that hasn't been upgraded. I used it for ...

Drum Roll, Ta-Da!:

The assembly of the Preamp is complete except for the front panel, Knobs and rear label.

As I was assembling the unit I found numerous mistakes (I I new I would) like swapping Left and Right wiring and one big blunder: I totally screwed up the Blend control wiring. I don't know ...

At this ungodly hour posting the final documents of my build. I can guarantee that there will be something missing or wrong :).
Now off to the work bench.

https://imagizer.imageshack.com/v2/640x480q70/922/JkzpEl.jpg
https://imagizer.imageshack.com/v2/640x480q70/922/mY0c6X.jpg
https://imagizer ...