Welcome To the Hoffman Amplifiers Forum

September 07, 2025, 12:17:10 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: 70's Vibrolux Find  (Read 5174 times)

0 Members and 1 Guest are viewing this topic.

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
70's Vibrolux Find
« on: September 21, 2016, 08:12:55 pm »
70's Vibrolux 210 Alnico find! It's been a few years since my 5D6A Bassman and 1959 Deluxe 5E3 finds.
The guts are untouched to my surprise. Also finding the blue coupling and tone caps was a surprise. 2 Alnico 10" speakers.
I Black faced the PI 1964-67 AA964 circuit. New F&T 16uf 450VDC PS capacitors with 1968-69 dated cap sleeves.

All versions are basically the same with a few changes such as the bias and power supply resistor nodes. I am using a NOS 1958 CBS Black plate 5U4GB and have all the voltages near dead on as per the AA964 schematic. Original grille cloth including all original Fender dated preamp tubes & foot switch.

Power tubes are 6L6GC GT and have to go. I would like to find some 82-85 JAN 6L6GWB short bottle power tubes.

Sounds like a tasty prime rib & corn beef and cabbage. Where food comes into the equation i have no idea. Must be hungry.

All Allen Bradley CC's. I have never owned one of these but i can tell you i sure have missed out on some incredible sweet tones.
Steve my new name is Vibroplex!
« Last Edit: September 22, 2016, 03:50:43 pm by plexi50 »

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
Re: Early 70's Vibrolux Find
« Reply #1 on: September 21, 2016, 08:16:11 pm »
Pic's

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
Re: Early 70's Vibrolux Find
« Reply #2 on: September 21, 2016, 08:22:38 pm »
Foot switch/

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Early 70's Vibrolux Find
« Reply #3 on: September 21, 2016, 08:32:08 pm »
I'd drop some EL34s and a plexi board in that in a heartbeat. Get some of those gold capped brown knobs. Sweet!
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline Tone Junkie

  • Level 3
  • ***
  • Posts: 861
Hoffman Amps Forum image
Re: Early 70's Vibrolux Find
« Reply #4 on: September 21, 2016, 08:33:45 pm »
Great find.
Bill

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
Re: Early 70's Vibrolux Find
« Reply #5 on: September 21, 2016, 08:40:11 pm »
I'd drop some EL34s and a plexi board in that in a heartbeat. Get some of those gold capped brown knobs. Sweet!

Uhhhhhhhhhhhhh! Yuck! :laugh:

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
Re: Early 70's Vibrolux Find
« Reply #6 on: September 21, 2016, 08:44:35 pm »
Great find.
Bill

Thanks Bill. Nice patina on the hardware. I ordered some vintage braided reverb cables. They look so much better than those plastic PVC cables.
« Last Edit: September 22, 2016, 06:21:44 am by plexi50 »

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: 70's Vibrolux Find
« Reply #7 on: September 22, 2016, 07:56:04 am »
Nice cap job!
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7739
Hoffman Amps Forum image
Re: 70's Vibrolux Find
« Reply #8 on: September 22, 2016, 08:05:44 am »
Nice score, it is really in good shape  :thumbsup:

If you recap, don't waste those nice paper pipes, recover it and cover with it the new capacitors

Franco
The world is a nice place if there is health and there are friends

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: 70's Vibrolux Find
« Reply #9 on: September 22, 2016, 08:56:33 am »
Take another look. He's already done that.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7739
Hoffman Amps Forum image
Re: 70's Vibrolux Find
« Reply #10 on: September 22, 2016, 09:00:00 am »
As always, you are right Steve

Franco
The world is a nice place if there is health and there are friends

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
Re: 70's Vibrolux Find
« Reply #11 on: September 22, 2016, 03:55:28 pm »
It's kinda funny but, i got those power supply cap sleeves from a 1968-1969 Vibrolux i would say about a year ago. They have been in a ziplock baggie just waiting for a home. This amp sounds amazing! Great Alnico speakers. Can't wait for the braided reverb cables to arrive.
« Last Edit: September 22, 2016, 06:56:10 pm by plexi50 »

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
Re: 70's Vibrolux Find
« Reply #12 on: September 22, 2016, 03:59:46 pm »
Nice score, it is really in good shape  :thumbsup:

If you recap, don't waste those nice paper pipes, recover it and cover with it the new capacitors

Franco

I have a pretty big supply of 60's & 70's capacitor sleeves just in case an amp i buy has been tampered with already and they are MIA.

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7739
Hoffman Amps Forum image
Re: 70's Vibrolux Find
« Reply #13 on: September 22, 2016, 05:00:53 pm »
I know some guy who are passionate for old radio (where you can find ecaps also in rectangoular boxes) that has some jpg files

and print it on cardboard to clone the original, I've seen some of this job and must say they are great

Franco
The world is a nice place if there is health and there are friends

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
Re: 70's Vibrolux Find
« Reply #14 on: September 22, 2016, 06:55:16 pm »
That does sound pretty cool. At least on my end there are still plenty of Fender amps out there that have never been recapped yet. Those are the ones i like to work on. It's like a big surprise when you remove the dog house and see the original PS caps.

 


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