the Poor Man 660 support thread

[lolo-m]

The comp is preety clear, but I need to feel the compression, maybe is a bad habit, hehehe, but I move the threshold in this comp and it sound like lowering the volume, I don´t really feel the compression acting... maybe with your mod I'll start to feel this... hope so!  :-\

Analag's network is really interresting because you don't feel much compression effect even when you compress a lot... Some poeple like, some others don't...
With my mod you can have more possibilities of attack/release and so more earable compression effects if you want. But a varimu comp is always natural when compressing...

For stereo mode, only the input setting can be different ( to adjust the volume of a bad balanced signal ) and the threshold should be the same on both channels...

 

[dagoose]

I'm in the middle of building this beast (can't wait to finish it) but i have one question about the zener diodes.
i have ordered zener diodes at RS and i'm not sure if they are the right one's and before i stick 'm on board i wanted to make sure.

RS pn. 625-6518,  100V Zener diode,1N5378B 5W
RS pn. 812-538,  20V Zener diode,BZX85C20 1.3W

Will these do the job or do i need other zeners? I'm pretty new to zener diodes so i'm not sure..

nobody? 

 

[radiance]

I'm in the middle of building this beast (can't wait to finish it) but i have one question about the zener diodes.
i have ordered zener diodes at RS and i'm not sure if they are the right one's and before i stick 'm on board i wanted to make sure.

RS pn. 625-6518,  100V Zener diode,1N5378B 5W
RS pn. 812-538,  20V Zener diode,BZX85C20 1.3W

Will these do the job or do i need other zeners? I'm pretty new to zener diodes so i'm not sure..

nobody? 

AFAIK breakdown voltage is all that matters...do the test and see for yerself 

http://www.wisc-online.com/objects/index_tj.asp?objID=ENG6903

 

[SaMpLeGoD]

Thanks Volker and Laurent! Looking forward to apply the Scamp mod... I really want ot hear some compression effect
Cheers,

Eddie

 

[dagoose]

I'm in the middle of building this beast (can't wait to finish it) but i have one question about the zener diodes.
i have ordered zener diodes at RS and i'm not sure if they are the right one's and before i stick 'm on board i wanted to make sure.

RS pn. 625-6518,  100V Zener diode,1N5378B 5W
RS pn. 812-538,  20V Zener diode,BZX85C20 1.3W

Will these do the job or do i need other zeners? I'm pretty new to zener diodes so i'm not sure..

nobody? 

AFAIK breakdown voltage is all that matters...do the test and see for yerself 

http://www.wisc-online.com/objects/index_tj.asp?objID=ENG6903

OK, so i'm save using 'm if i look at it like that..
Thanks!

A new pm670 will be born soon.  8)

 

[dagoose]

Just wondering, what resistor values did everybody use here for the time constant switch?

I have allready made the uraltone swithes en modified them to 21 steps which is not really easy to do.
I will try to post pics of where i drilled a hole and put in a 1.5mm copper wire as a stopper. Works like a charm and you don't have to open up anything.  8)

Meters came in today (the retro sifam's), tubes are in and the boards are stuffed for 95% now can't wait to hear it!
Still need to think about the frontpanel, not sure if i go for lasertran (cheap and fast) or engraving (expensive, better but slower)
I only had 2 DOA XSM600/10k's, waiting for a response from Tony now..  :-[

 

[dagoose]

Just wondering, what resistor values did everybody use here for the time constant switch?

I have allready made the uraltone swithes en modified them to 21 steps which is not really easy to do.
I will try to post pics of where i drilled a hole and put in a 1.5mm copper wire as a stopper. Works like a charm and you don't have to open up anything.  8)

Meters came in today (the retro sifam's), tubes are in and the boards are stuffed for 95% now can't wait to hear it!
Still need to think about the frontpanel, not sure if i go for lasertran (cheap and fast) or engraving (expensive, better but slower)
I only had 2 DOA XSM600/10k's, waiting for a response from Tony now..  :-[

Nobody? Topic is a bit resting i guess..

 

[[silent:arts]]

Just wondering, what resistor values did everybody use here for the time constant switch?

nothing is resting, but I'm tired to say:
choose the suggested stock values.
if you are unhappy you can do experiments.
why always mod before heard ? ???

 

[dagoose]

Just wondering, what resistor values did everybody use here for the time constant switch?

nothing is resting, but I'm tired to say:
choose the suggested stock values.
if you are unhappy you can do experiments.
why always mod before heard ? ???

I don't want to mod this thing.. i want to keep it stock.. ok.. ordered the 'modboard' but i'm not even sure if i'm going to use it, if i'm happy with what i hear it's cool for me.
The thing is, i don't see the stock values for the time constant anyware or do i miss something here?  :-[

 

[[silent:arts]]

... The thing is, i don't see the stock values for the time constant anyware or do i miss something here?  :-[

RV7 on the schematic, 10K lin pot. if you want 6 steps switched use 5 x 2K resistors.

 

[dagoose]

... The thing is, i don't see the stock values for the time constant anyware or do i miss something here?  :-[

RV7 on the schematic, 10K lin pot. if you want 6 steps switched use 5 x 2K resistors.

OK, thanks! That was what i was looking for.. couldn't be more simple, i was thinking way more difficult.

 

[lolo-m]

Just wondering, what resistor values did everybody use here for the time constant switch?

nothing is resting, but I'm tired to say:
choose the suggested stock values.
if you are unhappy you can do experiments.
why always mod before heard ? ???

That's why I made the board to have a "Stock" mode  ... It is working really well stock... This is also why I designed the mod to be easily reversed into stock PM670... 

 

[[silent:arts]]

nothing wrong Lolo,
I like the enthusiasms you put in your boards and in this project.
should order one PCB too, just to support it.

 

[analag]

nothing wrong Lolo,
I like the enthusiasms you put in your boards and in this project.
should order one PCB too, just to support it.

Shouldn't somebody send me one...really?

analag

 

[rrs]

nothing wrong Lolo,
I like the enthusiasms you put in your boards and in this project.
should order one PCB too, just to support it.

Shouldn't somebody send me one...really?

analag

Not untill you let us in on the next big Project.  ;D

It's was an EQ of sorts am I right.

 

[lolo-m]

nothing wrong Lolo,
I like the enthusiasms you put in your boards and in this project.
should order one PCB too, just to support it.

Shouldn't somebody send me one...really?

analag

analag and [Silent:arts]: if you're interrested in mod boards, just PM me or e-mail me with your address, I would be glad to offer one to you  ;D ! Without you this project wouldn't be what it is !
Thank you again and again !

 

[analag]

analag and [Silent:arts]: if you're interrested in mod boards, just PM me or e-mail me with your address, I would be glad to offer one to you  ;D ! Without you this project wouldn't be what it is !
Thank you again and again !

I'm just messing around...I already have the PoorMan II.

analag

 

[lolo-m]

Poor Man II !!!
;D ;D ;D ;D ;D ;D

 

[[silent:arts]]

hoha ;D
let me first finish the EQ ...
too busy times ...

official announcement:
I hired some server space yesterday, to do a web shop for all this wonderful projects.
group buys are always too limited in time, and this would give a mostly permanent availability of the PCBs and may be some hard to get parts.

sad thing is: setting this up costs some time which could be used in designing PCBs and building prototypes ...

 

[lewilson]

Ive got my poorman working , A few bugs to work out still.
Also Im reading a max of about -12 volts for control voltage with full compresion, is this correct?  Many thanks