Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 05:27:37 am
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Schematic of the month  (Read 14583 times)

0 Members and 1 Guest are viewing this topic.

Offline FYL

  • Level 4
  • *****
  • Posts: 2313
Hoffman Amps Forum image
Schematic of the month
« on: November 25, 2010, 08:19:33 am »

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7738
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #1 on: November 25, 2010, 10:53:24 am »
Attention HIGH Voltage can be lethal

Pay attention when handling ELECTRIC EEL

 :laugh: :laugh: :laugh:

Kagliostro



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

Offline Iannone

  • Level 2
  • **
  • Posts: 327
  • If it's too loud, you're too old
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #2 on: November 25, 2010, 11:10:49 am »
Love the flux capacitor!  Where do you get them?  I can't find them at Mouser.

Offline eleventeen

  • Level 4
  • *****
  • Posts: 2229
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #3 on: November 25, 2010, 12:14:32 pm »
Hmmm. I don't see any dark-emitting diodes nor write-only memory in there.

Offline FYL

  • Level 4
  • *****
  • Posts: 2313
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #4 on: November 25, 2010, 01:41:00 pm »
Quote
Love the flux capacitor!  Where do you get them?  I can't find them at Mouser.

You have either to get them on the black market or build them yourself.

http://www.instructables.com/id/Flux-Capacitor/


Offline escopunk

  • Level 1
  • *
  • Posts: 22
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #5 on: November 25, 2010, 05:22:02 pm »
That must be the elusive KranK Krankenstein schematic I have been lookig for :laugh:

Offline FYL

  • Level 4
  • *****
  • Posts: 2313
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #6 on: November 25, 2010, 06:57:00 pm »

Offline punkykatt

  • Level 3
  • ***
  • Posts: 1145
  • I love tube amps
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #7 on: November 25, 2010, 07:47:00 pm »
That sure is a fun schematic, I love the holy water gound. :laugh:
Punky

Offline mresistor

  • Global Moderator
  • Level 4
  • ******
  • Posts: 3209
  • resistance is futile
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #8 on: November 25, 2010, 09:08:49 pm »
lmao!  :laugh:  great schemo...      flip-flop   but may use sandal.... LOL
« Last Edit: November 25, 2010, 09:13:42 pm by mresistor »

Offline John

  • Level 3
  • ***
  • Posts: 1895
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #9 on: November 26, 2010, 04:31:14 pm »
120 "or to taste"  :laugh: :laugh: :laugh:

And what's really funny is, a year ago I wouldn't have gotten any of it.  :smiley:
Tapping into the inner tube.

Offline plexi50

  • Level 4
  • *****
  • Posts: 4649
  • Tube Tone
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #10 on: November 26, 2010, 05:14:09 pm »
I needed a new and refreshing schematic to look at.  Ive seen all the others too often  :smiley:

Offline bigdaddy

  • Level 3
  • ***
  • Posts: 1023
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #11 on: November 26, 2010, 05:59:38 pm »
Very funny, excellent......this place needs a little more comedy. :grin:

Offline Jack1962

  • Level 2
  • **
  • Posts: 376
  • I love AMPS, Tube or SS
    • Latham Electronic Systems
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #12 on: November 27, 2010, 06:06:12 am »
Allright I have been looking for that diagram  :laugh:
Any tube unit can be brought back to life.
I never meet a tube I didn't like.

Offline PRR

  • Level 5
  • *******
  • Posts: 17082
  • Maine USA
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #13 on: November 28, 2010, 01:21:33 am »
There is an error on that diagram.

Offline FYL

  • Level 4
  • *****
  • Posts: 2313
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #14 on: November 28, 2010, 06:05:17 am »
Quote
There is an error on that diagram.

 :laugh:

Offline supro66

  • Level 3
  • ***
  • Posts: 525
  • I love tube amps
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #15 on: November 29, 2010, 04:57:06 am »
How do you make holy water  :angel

Offline darryl

  • Level 2
  • **
  • Posts: 246
    • ValveTone Amplification
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #16 on: November 29, 2010, 06:27:33 am »
How do you make holy water  :angel

Use a ground stake to poke a hole through the surface, like they have in the schematic. 

Offline supro66

  • Level 3
  • ***
  • Posts: 525
  • I love tube amps
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #17 on: November 29, 2010, 10:47:52 am »
How do you make holy water  :angel

Use a ground stake to poke a hole through the surface, like they have in the schematic. 

No No

You Boil The HECK out of it  :grin:

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7738
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #18 on: November 29, 2010, 11:01:41 am »
Quote
How do you make holy water  :angel

In Italy we say that "gold water" coming out from baby is Holy Water

try with a pint of beer ..............  :smiley:  :wink: :smiley:

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

Offline panhead

  • Level 4
  • *****
  • Posts: 2173
  • Play it like your hair's on fire
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #19 on: November 29, 2010, 03:44:27 pm »
It looks like a Volkswagon bus fix-it manual that was popular in the 60's and 70's.
Panhead

Offline RicharD

  • SMG
  • Level 4
  • *****
  • Posts: 2057
    • Toxic Water
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #20 on: November 29, 2010, 05:07:40 pm »
I love that schematic.  I've posted this here before but the Rane Pseudoacoustic Infector is pretty funny too.  Be sure and read the cut sheet.

http://www.rane.com/pi14.html

Offline eleventeen

  • Level 4
  • *****
  • Posts: 2229
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #21 on: November 30, 2010, 10:40:06 pm »
That's great, Buttery!

3-pin Mr. Bill connectors!

Offline TIMBO

  • Level 4
  • *****
  • Posts: 2878
  • Blues Forever
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #22 on: December 01, 2010, 12:56:42 am »
I was impressed by the detail of this schem and set my self the task of adding another quality build to my ever growing amp collection. My build was slowed somewhat as the parts list contained components not readily available here in australia.I would liked to have purchased the PT from doug's great range of PT's but my calculations put the required voltage just above anything he has. I hit the internet and found a local supplier with the goods. I was a little put back at the price but with help from the bank manager i was able to make the purchase. I was stumped to what chassis i would use, i was thinking something along the size of a shipping container.( as we know a 20KVA transformer takes up a bit of room :wink:)I must ask the usual dumb Level 1 question, Please i'm still learning, where does the power cord connect :sad:
Thanks for your on going help.

Offline Shrapnel

  • Level 3
  • ***
  • Posts: 548
  • Intelligence is good. Wisdom is better.
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #23 on: December 01, 2010, 01:22:02 am »
The power cord must be hooked up to a lightning rod on the tallest peak of your castle, and it can only be ran during a severe lightning storm while being supervised by Dr. Frankenstein. This must also be factored into your transformer choice and the specifications of your flux capacitor.

I must ask the usual dumb Level 1 question, Please i'm still learning, where does the power cord connect :sad:
Thanks for your on going help.
-Later!

"All the great speakers were bad speakers at first" - Ralph Waldo Emerson

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7738
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #24 on: December 03, 2010, 09:16:58 am »
I submitted the schematic in an italian forum

one member of that forum has a council for an improvement modify

must add this component

http://www.scribd.com/doc/30341159/National-Semiconductor-Polish-Op-Amp-data-sheet

 :grin: :grin: :grin:

Kagliostro

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

Offline FYL

  • Level 4
  • *****
  • Posts: 2313
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #25 on: December 03, 2010, 10:19:44 am »
Quote
must add this component

An April's fool joke by NS in '78 or so...

Here's a better copy : http://desperate-engineers.com/files/2010/08/NS_polish_amplifier.pdf

From a time when the Polish Embassy in DC had a Jokes Department.

 :grin:

Offline Frankenamp

  • Level 3
  • ***
  • Posts: 608
  • What does this button do?
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #26 on: December 03, 2010, 08:43:28 pm »
The power cord must be hooked up to a lightning rod on the tallest peak of your castle, and it can only be ran during a severe lightning storm while being supervised by Dr. Frankenstein. This must also be factored into your transformer choice and the specifications of your flux capacitor.


Thats: "Fraunkinsteen"
This problem calls for a bigger hammer!

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7738
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #27 on: December 04, 2010, 01:37:13 am »
For those interested in details about the flux capacitor

The Delorean modify to time machine complete schematics

Kagliostro :smiley:

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

Offline archaos

  • Level 2
  • **
  • Posts: 224
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #28 on: December 04, 2010, 10:10:49 am »
Quote
There is an error on that diagram.

 :laugh:

Got it ! No tubes here ; FYL, I think Doug will remove your topic ... :lipsrsealed:  :laugh:
Quote
I have stopped being surprised at the guitar player who spends $3,000 on the latest boutique amplifier, and plugs in his Mexican Stratocaster strung with light gauge strings through a Big Muff Pi fuzz pedal.

Mehr Licht !

Offline FYL

  • Level 4
  • *****
  • Posts: 2313
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #29 on: December 04, 2010, 11:32:08 am »
Quote
Got it ! No tubes here ; FYL, I think Doug will remove your topic ... :lipsrsealed:  :laugh:

There's one at the bottom, a monode.
 :angel

Offline archaos

  • Level 2
  • **
  • Posts: 224
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #30 on: December 04, 2010, 03:36:08 pm »
Quote
Got it ! No tubes here ; FYL, I think Doug will remove your topic ... :lipsrsealed:  :laugh:

There's one at the bottom, a monode.
 :angel


:sign13: I'm dead
Quote
I have stopped being surprised at the guitar player who spends $3,000 on the latest boutique amplifier, and plugs in his Mexican Stratocaster strung with light gauge strings through a Big Muff Pi fuzz pedal.

Mehr Licht !

Offline DummyLoad

  • SMG
  • Level 5
  • *****
  • Posts: 5790
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #31 on: December 04, 2010, 04:00:39 pm »
Quote
must add this component

An April's fool joke by NS in '78 or so...

Here's a better copy : http://desperate-engineers.com/files/2010/08/NS_polish_amplifier.pdf

From a time when the Polish Embassy in DC had a Jokes Department.

 :grin:

Voltage Fouler....  :laugh:  :laugh:

Offline RicharD

  • SMG
  • Level 4
  • *****
  • Posts: 2057
    • Toxic Water
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #32 on: December 04, 2010, 06:28:46 pm »
Marginal Bandwidth & Slewrate. 

I think I just drooled on my pocket protector.

Offline supro66

  • Level 3
  • ***
  • Posts: 525
  • I love tube amps
Hoffman Amps Forum image
Re: Schematic of the month
« Reply #33 on: December 06, 2010, 06:10:04 am »
We could make a Rub Goldberg Amp and have it work

Like Jumping Cables and a 6 volt Battery for the heaters
Paper cups and wire for speakers
Make caps tin foil and paper Scotch tape
Resistors Pencil leads

Use the K.I.S.S. Method

Keep It Simple Stupid
« Last Edit: December 06, 2010, 06:19:05 am by supro66 »

 


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