Pultec EQP-1A - Program Equalizer

Pultec EQP-1A - Program Equalizer


Implemented another new project:





Photos of the project: http://jbb.ru/1a/

Layout EQP-1A: http://jbb.ru/schematics/1a-layout.htm

Scheme EQP-1A Active: http://jbb.ru/schematics/1a-shem-a.htm

Scheme EQP-1A Passive: http://jbb.ru/schematics/1a-shem-p.htm


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looks very appealing to me

Всё красиво, аккуратно сделано! И вебсайт тоже!
Nice work!

Я полностью согласен!
I fully agree!

грандио́зный !!!!
большо́е спаси́бо!
Thank s for the nice Drawing, beautiful Work!!
Greetings
Lothar

i can't speak Russian or write in cyrillic like other, but your build is damn good !
I also have a look at your 176  how did this one cost in part at the end?

Zam

zamproject said:

how did this one cost in part at the end?

Click to expand...

If I correctly understand your question
  - all devices cost on average $ 1,000.

JBB said:

zamproject said:

how did this one cost in part at the end?

Click to expand...

If I correctly understand your question
  - all devices cost on average $ 1,000.

Click to expand...

yes you are(if it's the 176), tks for reply
your schem and layout are nice, any chance you share the BOM? like with resistor W and sources for the nice tube angled holder
Best
Zam

zamproject said:

yes you are(if it's the 176), tks for reply
your schem and layout are nice, any chance you share the BOM?

Click to expand...

- Yes, and 176 also.

- Are you interested in BOM UA 176, or EQP-1A?

How does the passive eq sound?

weiss said:

How does the passive eq sound?

Click to expand...

Not yet heard separately.

JBB said:

zamproject said:

yes you are(if it's the 176), tks for reply
your schem and layout are nice, any chance you share the BOM?

Click to expand...

- Yes, and 176 also.

- Are you interested in BOM UA 176, or EQP-1A?

Click to expand...

mostly the 176, but I think the community will appreciate both 
best
Zam

zamproject said:

mostly the 176, but I think the community will appreciate both 

Click to expand...

Write a little later.

Added BOM 176: http://jbb.ru/schematics/UA_175_176_BOM.xlsx 

Also reload a slightly modified scheme.

JBB said:

Added BOM 176: http://jbb.ru/schematics/UA_175_176_BOM.xlsx 

Also reload a slightly modified scheme.

Click to expand...

Tks for that JBB !!

best
Zam

Hello, JBB,

  Sorry to bring back this dinosaur of a thread but, I'm using your schematics and layouts because you've done such a good job with them and I'm just wondering if you can share the BOM of your Pultec build with me.

  I haven't found C7/C8 and C9/C10 [which are each 50 uf + 50 uf 450V] but, I found some Mundorf ones that are 50uf + 50uf but rated for 500V. Could this work as a substitute in your circuit?

Here's a link:

http://www.partsconnexion.com/capacitor_ele_mundorf_hv500-r.html

Also, if you have any more of these beautiful pictures (besides the ones on your website), I'd love to take a look.

Hello, Coconuts,

A pretty good option is to use these capacitors Mundorf  50uf + 50uf 500V.
The more voltage to capacitors, the better.
My the photo shows that I myself use capacitors ARS 50uf + 50uf 500V.

Here are all my working photos: https://yadi.sk/d/FNmNefF13Fv2hC

Hello,
does anyone have a BOM for this project and would like to share it?