Sign in to follow this  


Recommended Posts

I have a 1956 Cape VL1 Mk1 and a 1958 Mk11.  These are KT66 ultra-linear 25W monoblock amplifiers with similar circuitry supposedly based on a Williamson design.  Does anybody have any knowledge/experience of these amps or technical information especially a circuit diagram.

Share this post

Link to post
Share on other sites
7 hours ago, toprepairman said:

It's usually fairly straightforward to be able to workout the circuit diagram from the amp itself. I assume it uses 6SN7's or 6J5's in the input/driver stages.

Yes to some extent but not quite sure if it has not been messed about with by previous owners in the last 60+ years.  Would be nice to know the original specified values, voltage ratings and tolerances of components etc..

The input/driver valves are ECC82 and ECC83.

Share this post

Link to post
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.

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.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.