2Ж27Л - 4Ж1Л - 12Ж1Л - 4П1Л - How to use ?? - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps

Instruments and Amps Everything that makes music, Especially including instrument amps.

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 12th June 2012, 02:56 PM   #1
diyAudio Member
 
Join Date: Dec 2008
Question 2Ж27Л - 4Ж1Л - 12Ж1Л - 4П1Л - How to use ??

I've some of this tubes

2Ж27Л - 4Ж1Л - 12Ж1Л - 4П1Л

and I'm interested about to use for an amp (guitar amp)

So I'm looking for schematics

however any proven audio schematic using this tubes is of interest for me

Thanks

Kagliostro
  Reply With Quote
Old 12th June 2012, 03:24 PM   #2
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Here is an example:

One more 4P1L SE
__________________
The Devil is not so terrible as his math model is!
  Reply With Quote
Old 12th June 2012, 05:40 PM   #3
kevinkr is offline kevinkr  United States
diyAudio Moderator
 
kevinkr's Avatar
 
Join Date: Sep 2004
Location: Boston, Massachusetts
Blog Entries: 6
Moving to Instruments & Amplifiers since first post specifically mentions guitar amp. Please read the headers atop both tubes/valves and Instruments & Amplifiers for the reason why. It's clearly stated.
__________________
"Extraordinary claims require extraordinary evidence." - Carl Sagan
  Reply With Quote
Old 12th June 2012, 06:04 PM   #4
diyAudio Member
 
Join Date: Dec 2008
Hi Wavebourn

That is an interesting drawing, a bit complicated if compared to the schematics I'm used to see (guitar amp schematics, not Hi Fi amp), but interesting, many thanks for sharing

@ Kevinkr

I apologize , thanks for moving in the right section

Kagliostro
  Reply With Quote
Old 12th June 2012, 06:16 PM   #5
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Quote:
Originally Posted by Kagliostro View Post
Hi Wavebourn



....a bit complicated if compared to the schematics I'm used to see (guitar amp schematics....
not really....if you know what you are looking at
  Reply With Quote
Old 12th June 2012, 06:19 PM   #6
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
Yes, for guitar amp it is no good. It is high-end amp, used in well controlled listening. Driver stage has negative swing limited by negative voltage supply, so clipping will be hard and harsh. For guitar you may use 12P17L and 12J1L similarly to Fender Champ schematic.
__________________
The Devil is not so terrible as his math model is!
  Reply With Quote
Old 12th June 2012, 06:26 PM   #7
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
 
Join Date: Nov 2005
Quote:
Originally Posted by Kagliostro View Post

I apologize , thanks for moving in the right section

Kagliostro
when you google, I suggest you try go to 'pictures'
often gives some good hits
  Reply With Quote
Old 12th June 2012, 09:18 PM   #8
diyAudio Member
 
Join Date: Dec 2008
Quote:
when you google, I suggest you try go to 'pictures'
often gives some good hits
That is a good council I often do that and .......... yes, that way I've also seen the schematic drawn by Wavebourn

About the complication at which I was referring Wavebourn has perfectly understand what I was intending (as from his answer)

about the use of 12J1L (12Ж1Л) I've one, but no 12P17L (12П17Л)

May be I can use the 12Ж1Л + 4П1Л like in this schematic, but sure I need councils as to use for guitar instead than for his original purpose
(hope someone can give indications about)

Kagliostro
Attached Images
File Type: gif 1440260.gif (31.3 KB, 139 views)
  Reply With Quote
Old 13th June 2012, 05:18 PM   #9
diyAudio Member
 
Wavebourn's Avatar
 
Join Date: Sep 2006
Location: Pleasant Hill, CA
Send a message via Skype™ to Wavebourn
You can use 12Ж1Л + 4П1Л like 6SJ7 + 6V6 in Fender Champ schematic. However, you will need 2 different filament voltages.
__________________
The Devil is not so terrible as his math model is!
  Reply With Quote
Old 13th June 2012, 06:37 PM   #10
diyAudio Member
 
Join Date: Dec 2008
Hi Wavebourn

The direct cathode heater of the 4П1Л is confusing me

a bypass cap isn't necessary ? (Fender 5C1 6v6 cathode = 500ohm + 25mf)

Kagliostro
  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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Question regarding my SONY TA 1055 spokes1979 Multi-Way 0 22nd March 2011 04:19 AM
Sony ta-1055 issues Spytap Solid State 4 12th June 2010 05:20 AM
WTB: JFETs: КП801, КП802 aka KP801, KP802 Faust3D Swap Meet 4 13th January 2010 12:57 PM
Question about Sony TA-1055 jonjonjonjon Solid State 3 28th September 2007 01:20 AM
sony TA 1055 LAO Solid State 1 30th August 2004 04:54 AM


New To Site? Need Help?

All times are GMT. The time now is 07:38 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