On 2011-12-17 9:41 PM, Nathan Coy wrote: > Oh here we go > I guess I'll have to find a copy of the Radiotron designers handbook > mentioned here. http://draget.net/tom_pages/index.php?p=rdh4 or other locations available via Google -- this is the 4th ed. The 3rd is also available as a scan. I have a printed copy and at least one of the editions scanned. Cheers, Richard -- Richard L. Hess email: [log in to unmask] Aurora, Ontario, Canada (905) 713 6733 1-877-TAPE-FIX http://www.richardhess.com/tape/contact.htm Quality tape transfers -- even from hard-to-play tapes.