DIY Audio Projects Forum
 NEW  Matt presents bias and operation data for the 6V6 tube in SE operation - 6V6 Single-Ended (SE) Ultra Linear (UL) Bias Optimization.

DIY Audio Projects Forum

Welcome to the DIY Audio Projects Message Forum. Use these forums to discuss Hi-Fi audio and to share your DIY Audio Projects. Registration is free and required to post messages and view the file attachments. Registration will only take a minute and registered users do not see any advertisements. After you have completed the online registration process, check your email (including spam/junk folder) for the verification email to activate your account. New members are under moderation - so your posts will not be visible until approved by a moderator. See the Read Me 1st, Forum RULES and Forum FAQ to get started on the forum.

It is currently 10 Dec 2018, 04:49

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 1 post ] 
Author Message
PostPosted: 24 Apr 2014, 15:21 
Offline
User avatar

Joined: 03 May 2011, 15:16
Posts: 180
Location: Romania,Iasi City
Hello everybody!!

I am interested in building this design for MW and LW.

1tube & 2IC Super Hetrodyne Radio
http://www5a.biglobe.ne.jp/jh2clv/1t2icradio.htm
Image

I got the IC and the valve.

I have all the coils on a PCB with FM-LW-MW from a radio.cass.

The problem is the coils. Which type of coils should be used? The yellow core is 1st AM IF, the white is 2nd stage AM IF and the black is 3rd AM IF stage. The two coils should be the same for example (yellow-Filter-yellow) or not? (for example yellow-Filter-black).. Another problem is how can I know the numbering of those coils and the hot end and cold end of each section?

Thank you!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC - 6 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 3 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
DIY Tube Projects :: DIY Tube Amp Kits :: DIY Speaker Projects :: DIY Solid State Projects :: DIY IC / Op-amp Projects :: DIY Phono Projects :: DIY Cable Projects :: Hi-Fi Audio Schematics
© diyAudioProjects.com - Terms of Service - Privacy Policy