Welcome To the Hoffman Amplifiers Forum

September 08, 2025, 06:18:23 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Laney Cub schematic change to point to point  (Read 12758 times)

0 Members and 1 Guest are viewing this topic.

Offline Hoot

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Laney Cub schematic change to point to point
« on: August 28, 2018, 12:06:10 pm »
Would it be, or is it possible to take this schematic and convert it into a point-to-point diagram / layout, so that it could build it as a kit? I do not have the technological know-how of converting schematics to point-to-point and this is something I would really like to build. It would also be really cool if we could put in a tube rectifier. If you know where there is a diagram available / layout I would greatly appreciate it.

Offline shooter

  • Level 5
  • *******
  • Posts: 11018
  • Karma Loves haters
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #1 on: August 28, 2018, 12:36:23 pm »
you'll be money ahead finding a broke one and having it fixed.  Ic's don't lend well for turrets, especially when the leg count gets to 28
Went Class C for efficiency

Offline Hoot

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #2 on: August 28, 2018, 01:28:53 pm »
That is kind of disappointing however, I would still like to give it a try. does anyone know if there are any amps that offer what this amp would offer in kit form or have a point to point layout/diagram,  I have done some looking and have not found anything.

This is kind of what I'm looking to build something that has gain, volume, trouble, middle, bass, Reverb and presence. that can be switched from high power to a low power setting like 2/15 w. It could even have separate input jacks instead of having a switch if it would be easier to design that way. Have a tube rectifier with 12ax7 preamp circuits and el84 / 34 Power section. and since We're Dreaming I would love to have a footswitch that would turn the Reverb on and off and another switch that would allow the gain to go from a very low setting like a clean to whatever the knob is set at like 7. So that it would act like a clean / drive switch. Build my own cabinet that would either have a 12 inch Jensen or celestion speaker.


Offline VMS

  • Level 3
  • ***
  • Posts: 739
  • I love tube amps
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #3 on: August 28, 2018, 01:37:27 pm »
i would also like to build an amp with trouble control  :smiley:

Offline Hoot

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #4 on: August 28, 2018, 02:55:06 pm »
I figured a trouble control knob would help, only if there was one to help my bad playing. ( Of course I meant treble)

Offline John

  • Level 3
  • ***
  • Posts: 1895
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #5 on: August 28, 2018, 03:13:26 pm »
I have implemented a talent boost circuit in each amp I build for myself. So far, I can't get it to work.  :laugh:
Tapping into the inner tube.

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #6 on: August 28, 2018, 05:56:45 pm »
Maybe you should use my talent dump circuit. It works very well!  :l2:
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline John

  • Level 3
  • ***
  • Posts: 1895
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #7 on: August 28, 2018, 07:09:39 pm »
Don't need that!
Tapping into the inner tube.

Offline Hoot

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #8 on: August 28, 2018, 08:21:13 pm »
I do enjoy a good laugh now and then, however back to the question does anyone know where such a layout could be found or layouts that can be put together to make such a machine minus the terrible knob

Offline shooter

  • Level 5
  • *******
  • Posts: 11018
  • Karma Loves haters
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #9 on: August 28, 2018, 08:44:49 pm »
shop your schematic around to circuit board builders on the web, might wanna be playing some Jgeils before you read the replies  :icon_biggrin:
that will give you an idea of what things cost
Went Class C for efficiency

Offline Ritchie200

  • Level 4
  • *****
  • Posts: 3485
  • Smokin' 88's!
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #10 on: August 29, 2018, 10:26:05 am »
Take a look at the turret boards Doug sells here to see if any come close to what you want. You could then tweak to taste. Looks like you just want a high gain low watt amp with some trimmings. Also check out the AX84 site for some ideas. Regardless, unless you are independently wealthy, you are going to have to put some time in to learn some things to be able to mix and match and implement the ideas you have.  I don’t think you will find exactly what you are looking for - especially in some sort of kit form.

Jim

My religion? I'm a Cathode Follower!
Can we have everything louder than everything else?

Offline Ritchie200

  • Level 4
  • *****
  • Posts: 3485
  • Smokin' 88's!
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #11 on: August 29, 2018, 10:53:22 am »
Did some quick research and apparently this “Laney” amp is a rebadged Monoprice amp. $179 with free shipping from our Chinese friends. We don’t build these things to save money but I guarantee anything you put together will sound better than this.


Jim

My religion? I'm a Cathode Follower!
Can we have everything louder than everything else?

Offline VMS

  • Level 3
  • ***
  • Posts: 739
  • I love tube amps
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #12 on: August 29, 2018, 11:10:13 am »
With quick look the cub preamp is pretty close to JCM800 2204 circuit, so maybe some marshall layouts would be easier to find.

Offline VMS

  • Level 3
  • ***
  • Posts: 739
  • I love tube amps
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #13 on: August 29, 2018, 12:50:26 pm »
Low power setting has been done with simple attenuator circuit between phase inverter and power tubes so basically a fixed ppimv.
(i wonder how they came up with 2W on low setting)

Presence control in this amp is similar to top cut control on vox amps.



Offline Hoot

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Laney Cub schematic change to point to point
« Reply #14 on: August 30, 2018, 04:19:00 pm »
I think I found something that I want to build that meets my requirements however, it does not have a Reverb circuit. could I add this Reverb circuit out of the Princeton? if I can where would I tap into to send it to the circuit and recover it from the circuit. Also is there any little tweaks that someone would suggest that I make to the circuit. And I know this might sound a little strange but I wanted to be less powerful is it possible to just remove one of the output tubes from the circuit.
« Last Edit: August 30, 2018, 04:22:07 pm by Hoot »

 


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


password