Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 12:47:07 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: 747 tube tester manual and schematic  (Read 3396 times)

0 Members and 1 Guest are viewing this topic.

Offline Tommynz195

  • Level 1
  • *
  • Posts: 6
  • I love Tube amps
Hoffman Amps Forum image
747 tube tester manual and schematic
« on: October 03, 2018, 12:20:45 am »
Came across  a website today of many books that have been scanned up
manuals, schematics all sorts
from tubebooks.org

If this site is new to you, it may keep you busy for an afternoon, If this site hasn't been previously shared can an admin make mention where all can see

an example

B&k 747 tube tester manual

http://www.tubebooks.org/Books/Atwood/B&K%20Model%20747%20Dyna-Jet%20Tube%20Tester%20Manual.pdf


and schematic

http://www.tubebooks.org/Books/Atwood/B&K%20Model%20747%20Dyna-Jet%20Tube%20Tester%20Schematic.pdf

edit... fixed schematic link
« Last Edit: October 03, 2018, 12:47:23 am by sluckey »
Knowledge not shared is Knowledge wasted.

Offline jjasilli

  • Level 5
  • *******
  • Posts: 6731
  • Took the power supply test. . . got a B+
Hoffman Amps Forum image
Re: 747 tube tester manual and schematic
« Reply #1 on: October 03, 2018, 09:38:51 pm »
Great stuff! Thanks.

Offline Tommynz195

  • Level 1
  • *
  • Posts: 6
  • I love Tube amps
Hoffman Amps Forum image
Re: 747 tube tester manual and schematic
« Reply #2 on: October 04, 2018, 07:12:49 pm »
Most welcome

I had been reading a book "Spirit of Prophecy" and the take-away was
Knowledge not shared is Knowledge wasted.
Knowledge not shared is Knowledge wasted.

 


Choose a link from the
Hoffman Amplifiers parts catalog
Mobile Device
Catalog Link
Yard Sale
Discontinued
Misc. Hardware
What's New Board Building
 Parts
Amp trim
Handles
Lamps
Diodes
Hoffman Turret
 Boards
Channel
Switching
Resistors Fender Eyelet
 Boards
Screws/Nuts
Washers
Jacks/Plugs
Connectors
Misc Eyelet
Boards
Tools
Capacitors Custom Boards
Tubes
Valves
Pots
Knobs
Fuses/Cords Chassis
Tube
Sockets
Switches Wire
Cable


Handy Links
Tube Amp Library
Tube Amp
Schematics library
Design a custom Eyelet or
Turret Board
DIY Layout Creator
File analyzer program
DIY Layout Creator
File library
Transformer Wiring
Diagrams
Hoffmanamps
Facebook page
Hoffman Amplifiers
Discount Program