Please ensure Javascript is enabled for purposes of website accessibility Jump to content

Options for continued use of Spidervalve 212


Recommended Posts

I managed to acquire a MK1 (I believe) Spidervalve 212 that I absolutely love.  However, it appears as though the DSP chip may be failing and from what I gather may be unfixable.  When it works, it sounds lovely.


From what I can tell, the power amp stage looks good.  I just replaced both preamp and power amp tubes with 12AX7 and a matched set of Sovtek 5881s.  Biasing on the power tubes is ~32mV, and the amp has never been turned on without a speaker load.


If the DSP board does fail, what options do you think I have?  I would love to continue to use the power amp section of this device, but I want to do it correctly.

Link to comment
Share on other sites

If it's an oxidized intermittent solder point, a Line 6 authorized service center can deal with that and do an overall

check up. Tubes are still available, but other parts are not,... processor boards are all gone and no longer available. Valve MkII Pilot's Guide ( Rev F ).pdf?_ga=2.19226620.559611353.1693237757-1854743224.1659634079


Can bypass effects and use the power amp input.


MkII has MIDI In/Thru connectors, the MkI does not.


Link to comment
Share on other sites



Thank you for your reply and answers.  I have taken the processor board into my own work where I have SMT rework tools and a nice bench microscope.  After reflowing almost all of the solder joints, replacing some electrolytics, performing a thorough cleaning with rubbing alcohol, placing a heatsink with thermal tape on the DSP and Codec chip, the board and amplifier seem to be working.   I managed to play through it for about 1 hour without incident where before it would take only 10-15 minutes for the board to act up cease to work.


Thanks for the advice and direction.





Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...