weiss

Re: G-PULTEC problems, please help!
« Reply #720 on: February 05, 2019, 05:28:49 AM »
If i want to transform potentiometers of a dual mono pultec into stepped switches, is it as easy as using the 1x12 lorlins, adding resistors to it (like in the pqd2) and connect it?

i found these pcb's: http://diy-tubes.com/index.php?route=product/product&path=59&product_id=167

might that work?

thanks


gyraf

Re: G-PULTEC problems, please help!
« Reply #721 on: February 06, 2019, 05:55:13 AM »
I don't see why not? But you don't actually need pcb's for that, do you?

Jakob E.
..note to self: don't let Harman run your company..

weiss

Re: G-PULTEC problems, please help!
« Reply #722 on: February 06, 2019, 06:13:39 AM »
I don't see why not? But you don't actually need pcb's for that, do you?

Jakob E.

thanks, yes not really  ::)

petermontg

Re: G-PULTEC problems, please help!
« Reply #723 on: February 06, 2019, 11:07:38 AM »
Is it possible to control the iput in the amp.

And if so where about would i

Best
Peter

gyraf

Re: G-PULTEC problems, please help!
« Reply #724 on: February 08, 2019, 01:00:32 AM »
say again?
..note to self: don't let Harman run your company..

weiss

Re: G-PULTEC problems, please help!
« Reply #725 on: February 08, 2019, 05:12:20 AM »
Is it possible to control the iput in the amp.

And if so where about would i

Best
Peter

you want to control intput or output gain?

Re: G-PULTEC problems, please help!
« Reply #726 on: March 23, 2019, 09:43:26 PM »
Hi all,

Can someone tell me what the resistor values on the Don Audio filter board are? On the original they're marked as 1k, 1k, 10k, and 75r, is that right? If so, what do they correspond to, R1, R2 etc. Cant seem to find this anywhere online.

Probably a bit late but for anyone else needing them they are:

R1 = 75R
R2 = blank
R3 = 10K
R4 = 10K

petermontg

Re: G-PULTEC problems, please help!
« Reply #727 on: April 17, 2019, 02:41:57 PM »
you want to control intput or output gain?

What I am trying to do is just to control the input into the SRPP.

Any Ideas wold be great.

Best
Peter

weiss

Re: G-PULTEC problems, please help!
« Reply #728 on: April 17, 2019, 04:15:41 PM »
What I am trying to do is just to control the input into the SRPP.

Any Ideas wold be great.

Best
Peter

You could replace the 10k resistor in front of the SRPP (between filter pcb in and ground next to 220n coupling cap to ground) with a potentiometer to attenuate the signal.

petermontg

Re: G-PULTEC problems, please help!
« Reply #729 on: April 19, 2019, 08:37:19 AM »
Thanks I'll give it a go over the weekend.

Best
Peter


weiss

Re: G-PULTEC problems, please help!
« Reply #730 on: Today at 07:17:52 PM »
Hey guys,

i built a pultec with stereo potentiometers and dual gang switches from a kit i bought off a member here. But the high section (boost & attenuation) doesn't do anything on both channels..
Low section works as expected. i checked the wiring and couldn't find any loose connections.
Could you give me a hint where to look ?
Otherwise this eq is working fine.

thanks
Ansgar


 

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