Welcome To the Hoffman Amplifiers Forum

September 08, 2025, 12:57:23 am
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Marantz 7c Question - HELP !  (Read 5208 times)

0 Members and 1 Guest are viewing this topic.

Offline cydest

  • Level 1
  • *
  • Posts: 1
  • I love Tube amps
Hoffman Amps Forum image
Marantz 7c Question - HELP !
« on: November 13, 2014, 05:11:21 am »
Hi, while manipulating (blind) my Marantz 7c, I inadvertently used shorting plugs on the output RCAs. Of course no sound (nada) coming out of the 8b. I first thought my CD player was out. It took me a few minutes until I realized my mistake.

Your first reaction: what an idiot ! Well, I have to agree...

Your second reaction: please re-assure me that no damages to the 7c or 8b occurred (the set still sounds good).

- What could be theoretically damaged?
- Which components should I check?
- being a short-circuit, why did the fuse did not blew up?

Any inputs would be highly appreciated, and yes you can make fun of me on the forum !

thanks !

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Marantz 7c Question - HELP !
« Reply #1 on: November 13, 2014, 07:04:47 am »
It is not dangerous to short the output jacks of that tube preamp.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

 


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