Hi 
Thank you for the links. That was what I was looking for, and you inspired me to be more tenacious when searching for threads.
Before I posted, I tried the search function for "dumble book" and also for the URL of the website, which brought up the Amp Garage Forum Index as
the result. 
As I work with data bases as part of my day job, I figured I give it a try, again after your success.
Knowing that this is an older book, I figured it had been topic before.
Dumble Discussion  Took a chance... MM content
 Bob-I 11 360 Tue Oct 26, 2010 8:40 am
FUCHSAUDIO  
 Dumble Discussion Dumble book in
 renshen1957 5 191 Tue Oct 26, 2010 8:14 am
Bob-I  
 Technical Discussion  wiring heaters...ugh
[ Goto page: 1, 2 ]  stevlech 21 506 Tue Oct 26, 2010 7:59 am
Dai H.  
 Technical Discussion  Les Paul re-build
[ Goto page: 1, 2, 3 ]  angelodp 41 724 Tue Oct 26, 2010 6:48 am
Chad  
 Dumble Discussion  Mod to 2nd/ 3rd generation build
[ Goto page: 1, 2 ]  stevlech 26 709 Tue Oct 26, 2010 5:13 am
marcos  
 Technical Discussion  Good news = I got a 71 Bandmaster for $40! (Clips added)
[ Goto page: 1, 2, 3, 4 ]  infiniteposse 56 1624 Tue Oct 26, 2010 4:56 am
Bob-I  
 Technical Discussion Over-Sizing Power Transformers - How much is too much?
[ Goto page: 1, 2 ]  rocketeer 20 650 Mon Oct 25, 2010 12:09 pm
TheGimp  
 Dumble Discussion TwoRock EMMY PRO REPRISE..WITH CLIPS AND PICS.
[ Goto page: 1, 2 ]  Mr Dumble 21 1456 Mon Oct 25, 2010 8:16 am
ect.
All over the map (Trainwreck discussion) Ect for 65 pages.
In the past I tried "search all terms" for other thread searches with little success, but gave it a shot this morning, this time I struck gold.
Tried  Search for all terms, and received more than a few with dumble book in it.
Best Regards
Steve