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 07 Mar 2021, 16:53

All times are UTC - 6 hours [ DST ]

Post new topic Reply to topic  [ 1 post ] 
Author Message
 Post subject: 6T9 power amp chirping
PostPosted: 02 Jul 2019, 06:50 

Joined: 02 Jul 2019, 06:38
Posts: 2
I am new to this sight.
I have built several 6T9 amplifiers using the Spare Time Gizmos PCB with great success.
I built one the other day and when I fired it up it was garbled mess that came out.
I looked it over and noticed that i had put 270,000 ohm 1 watt resisters instead of 270 ohm resisters in Rs 105 and 205.
When I put the correct resisters in the amp stated playing but when turned up it would start to chirp nasty little barklike chirps.
Would anyone have any idea what might cause that.
Thanks for your time,
J. P.

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: Google [Bot] and 27 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
© - Terms of Service - Privacy Policy