Pignose Legendary 7-10 value?

Tube or solid-state, this section goes to eleven!
User avatar
chris067
Information
Posts: 7
Joined: 01 Dec 2008, 20:31
Location: France

Post by chris067 »

...and my own pcb drawing :

Image

User avatar
chris067
Information
Posts: 7
Joined: 01 Dec 2008, 20:31
Location: France

Post by chris067 »

Hello ? Anyone there ?
My Pignose simulation :

Image

User avatar
chris067
Information
Posts: 7
Joined: 01 Dec 2008, 20:31
Location: France

Post by chris067 »

upping the post !

User avatar
J M Fahey
Information
Posts: 10
Joined: 08 Jan 2009, 21:13
Has thanked: 1 time
Been thanked: 1 time

Post by J M Fahey »

Thanks, Chris, impressive work. I would ask you that, someday, when possible, you inject, say, 100Mv (or whatever´s necessary) at 1Khz (200 Hz is a bit low) to make the output just clip, and measure some voltages. The voltages at the speaker´s terminals give us the real power (hype says 5 W RMS which would be unbearably loud in a dorm and murder batteries; i guess more like 1 W RMS , based on battery life); and across different windings give us transformer ratios, very useful.
Thanks.

User avatar
Cloudy
Information
Posts: 1
Joined: 06 Sep 2011, 05:24

Post by Cloudy »

I can't see the images, sorry for bringing this up again, I'm interested in making a Pignose as well, and making or sourcing the transformers.

Thanks

User avatar
teemuk
Breadboard Brother
Information
Posts: 147
Joined: 17 Aug 2009, 19:54
Has thanked: 3 times
Been thanked: 55 times

Post by teemuk »

One schematic version:
http://www.schematicx.com/images/schema ... am-big.gif

There's many variations of this, though. Some use mainly PNP transistors and negative voltage supply, some use mainly NPN transistors and positive voltage supply. There were at least few different variations of the bias of the final stage and I can't remember from top of my head if there were also germanium and silicon versions. Point is, persistent search will find at least a handful of schematics where transistors and component values slightly vary. Pick your poison.

User avatar
stslam
Information
Posts: 1
Joined: 24 Jan 2012, 10:51

Post by stslam »

Hi All!
I try to replicate the Pignose & have some questions.
1. What data of output transformer? Wire diameter in mm & turns?
2. Where can I see the PCB?

P.S. I was calculate first coupling transformer, it's data:
wire diameter 0.11 mm
first coil - 780 turns
second coil 2x405 (810) turns

Thank for Your answer from cold Ukraine :)

User avatar
basicchannel
Information
Posts: 19
Joined: 07 Feb 2017, 06:14
Has thanked: 1 time
Been thanked: 3 times

Post by basicchannel »

Hello from years ago. I just measured the transformers in a newer-ish Pignose (pcb date is from 2014) and they are as follows:

Driver Transformer:
Primary 60ohm
Primary CT 30hm
Secondary 45ohm

Output Transformer:
Primary 8ohm
Primary CT 4ohm
Secondary 1.3ohm
Secondary CT .3ohm

Photos:

Post Reply