Verion / Cotter stepup trans restrapping info - diyAudio
Go Back   Home > Forums > Source & Line > Analogue Source

Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 26th August 2008, 06:57 PM   #1
AVWERK is offline AVWERK  United States
diyAudio Member
 
Join Date: Jan 2004
Location: So Calif.
Default Verion / Cotter stepup trans restrapping info



o represents connecting points
: represents vertical soldered connection



Type S 20+ ohms

o o o o

o o o o
: : : :
o o o o

o o o o
: : : :
o o o o

Type PP 20+30 ohms

o o o o
: : : :
o o o o

o o o o
: : : :
o o o o
: : : :
o o o o

I have type P 2-30 ohms also, but the spacing won't correctly translate

Regards
David
  Reply With Quote
Old 26th August 2008, 07:14 PM   #2
AVWERK is offline AVWERK  United States
diyAudio Member
 
Join Date: Jan 2004
Location: So Calif.
Type P 2-30 ohms

left to right

Ist row 1 and 3 points
2nd row 2 and 4 points
3rd row 1 and 3 points
4th row 1 2 3 4 points

Regards
David
  Reply With Quote
Old 6th September 2008, 12:58 AM   #3
AVWERK is offline AVWERK  United States
diyAudio Member
 
Join Date: Jan 2004
Location: So Calif.
Example:
Here's the P strapping for 2-30 ohm MC's


[IMGP0689.jpg]


regards
David
Attached Images
File Type: jpg imgp0689.jpg (51.4 KB, 139 views)
  Reply With Quote
Old 14th January 2009, 11:21 PM   #4
palewin is offline palewin  United States
diyAudio Member
 
Join Date: Jan 2009
Default Any gain info for the different strappings?

The strapping info is very useful. I'm hoping I can restrap my "P" version to lower the gain and increase the loading seen by the cartridge. To be honest, the load impedance ranges, with their overlap, are really not very informative. Does anyone know the step-up ratios and/or gain in db for the PP or S strappings? My understanding is that my "P" version has 24.5 db of gain, or a step-up ratio of 16.8:1. Thanks!
  Reply With Quote
Old 11th January 2010, 02:12 AM   #5
diyAudio Member
 
newkid's Avatar
 
Join Date: Dec 2009
Quote:
Originally Posted by AVWERK View Post
Example:
Here's the P strapping for 2-30 ohm MC's


[IMGP0689.jpg]


regards
David
the L channel is difference from R channel in this picture
  Reply With Quote
Old 11th January 2010, 02:24 AM   #6
diyAudio Member
 
newkid's Avatar
 
Join Date: Dec 2009
Quote:
Originally Posted by palewin View Post
The strapping info is very useful. I'm hoping I can restrap my "P" version to lower the gain and increase the loading seen by the cartridge. To be honest, the load impedance ranges, with their overlap, are really not very informative. Does anyone know the step-up ratios and/or gain in db for the PP or S strappings? My understanding is that my "P" version has 24.5 db of gain, or a step-up ratio of 16.8:1. Thanks!
MK2PP is optimized for phono cartridge in the 20 to 30 ohm range,such as the EMT,however,itis is possible to use either the Type P or Sfor cartridges in 20 to 30 ohm,but the transformer will not necessary be optimized for these cartridges, primary DC resistance <12 ohm,voltage ratio 8.88 to 1, gain:19db.

MK2S is for cartridges of 20 ohm or higher,such as denon & satin,for which it supplies the appropiate gainand gives the best low-frequency response,primary DC resistance < 12ohm,voltage ratio 8.88 to 1 gain:19db
  Reply With Quote
Old 11th January 2010, 03:06 AM   #7
diyAudio Member
 
newkid's Avatar
 
Join Date: Dec 2009
the cotter MK2P i have strap info:
o o o o
: : :
o o o o
: :
o o o o
: :
o o o o
: : :
o o o o
  Reply With Quote
Old 11th January 2010, 03:42 AM   #8
diyAudio Member
 
newkid's Avatar
 
Join Date: Dec 2009
Quote:
Originally Posted by newkid View Post
the cotter MK2P i have strap info:
o o o o
: : :
o o o o
: :
o o o o
: :
o o o o
: : :
o o o o
up schematic does not display correctly,it shoud be :
Attached Images
File Type: png cotter.strap.png (1.1 KB, 33 views)
  Reply With Quote
Old 11th January 2010, 03:51 AM   #9
diyAudio Member
 
newkid's Avatar
 
Join Date: Dec 2009
in the attachment i post:
the L channel should read from top to bottom,the R channel read from bottom to top,these 2 channel strap info looks same in this way.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 11:17 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2