Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 04:25:35 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Heyboer TP40D  (Read 3403 times)

0 Members and 1 Guest are viewing this topic.

Offline Bogan

  • Level 1
  • *
  • Posts: 6
  • I love Tube amps
Hoffman Amps Forum image
Heyboer TP40D
« on: September 11, 2024, 09:10:00 am »
Hi, I'm new to the forum. I'm building an amp for myself and am excited about all that I am learning along the way (this is my first build). I'd really like to get my hands on a Hayboer TP40D power transformer, but for the life of me I cannot find a new one, cannot find a used one, and cannot get a response from Heyboer.

I'm going with the 5E3P Proluxe with suggestions from Rob Robinette's webpage. I want the additional power of the Proluxe because I'm gearing the build towards my baritone guitar. I want tighter bass response and a larger speaker (Celestion Cream). The TP40D seems to possess all of the ideal characteristics, but being as green as I am, perhaps I'm not privvy to a suitable alternative. Could use some guidance. Thank you,
Bogan

Offline Willabe

  • Global Moderator
  • Level 5
  • ******
  • Posts: 10524
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #1 on: September 11, 2024, 09:17:53 am »
Welcome!     :icon_biggrin:

It's always helpful to post a schematic when asking about an amp build, repair, or mod.

And what is a Hayboer TP40D PT? Can you post a spec sheet for it?
« Last Edit: September 11, 2024, 09:36:23 am by Willabe »

Offline mresistor

  • Global Moderator
  • Level 4
  • ******
  • Posts: 3209
  • resistance is futile
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #2 on: September 11, 2024, 09:39:27 am »
The Heyboer TP40D was a Heyboer manufactured uprade PT for a Deluxe Reverb by David Allen




Offline Bogan

  • Level 1
  • *
  • Posts: 6
  • I love Tube amps
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #3 on: September 11, 2024, 09:42:38 am »
Thanks for the welcome!

Attached is the schematic for the TP40D.

One key feature is the 50v bias tap which is necessary for. They were used in Allen amps and I believe Allen sold them at one point as well, although that is no longer the case according to their website.

Rob Robinette's page dedicated to his Proluxe build shows a schematic for the PTF41316 he used (Hammond is the maker I believe). I'll attach that as well.


Offline mresistor

  • Global Moderator
  • Level 4
  • ******
  • Posts: 3209
  • resistance is futile
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #4 on: September 11, 2024, 09:46:17 am »
The amp is a weber design and is Fender 5E3 tweed Deluxe preamp and the Fender 5E5-A Pro power amp

Offline mresistor

  • Global Moderator
  • Level 4
  • ******
  • Posts: 3209
  • resistance is futile
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #5 on: September 11, 2024, 09:48:31 am »
Welcome Bogan. Do you have a TP40D power transformer already? What chassis are you considering using? 

Offline Bogan

  • Level 1
  • *
  • Posts: 6
  • I love Tube amps
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #6 on: September 11, 2024, 09:57:44 am »
I do not have a TP40D currently and I'm planning on using a 5E3 chassis.

Offline Willabe

  • Global Moderator
  • Level 5
  • ******
  • Posts: 10524
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #7 on: September 11, 2024, 10:09:14 am »
The owner of Allen Amps sold the company. 

I don't they sell transformers any more, you'll have to look that up. Probably need to use a different PT?

And you should look up if Weber still sells a kit.

You don't have to have a bias tap on the PT, it's nice, but not a deal killer if it doesn't have one.   

Offline mresistor

  • Global Moderator
  • Level 4
  • ******
  • Posts: 3209
  • resistance is futile
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #8 on: September 11, 2024, 10:38:52 am »
PTF41316 was made by Magnetic Components   they also went out of business..

Offline mresistor

  • Global Moderator
  • Level 4
  • ******
  • Posts: 3209
  • resistance is futile
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #9 on: September 11, 2024, 01:10:07 pm »
Hey Bogan  Mojotone has a 5E5 kit   https://www.mojotone.com/Tweed-Pro-5E5-A-Style-Amplifier-Kit


It's basically a quad input 5E3 with a beefier 6L6 output section.  It fits your requirements.
« Last Edit: September 11, 2024, 01:17:29 pm by mresistor »

Offline Bogan

  • Level 1
  • *
  • Posts: 6
  • I love Tube amps
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #10 on: September 12, 2024, 11:08:36 am »
Thanks for all the responses. I'm happy to have found an active community.

I did notice that the 5E5 kit would be very similar, but I'd like to keep my first build on the smaller side and make it a combo. Later I'd like to build some heads that I can try out with different cab/speaker arrangements. I moved away from kits because lists of parts/materials are made readily available along with an incredible amount of literature much of which is free online. At the end of the day I'd rather understand what I'm doing and why so the end result is what I want rather than following someone else's design to a T at the expense of comprehension and learning opportunities.

I landed on both a PT and OT that I think are going to serve my purposes and provide flexibility should I choose to make additional modifications down the line, but I'd certainly appreciate any feedback the community here has in case I've missed something. Schematics for both are attached.

Power Transformer: Hammond 373CZ
Output Transformer: Hammond 1760J

Offline acheld

  • Level 3
  • ***
  • Posts: 1264
  • No well conceived plan survives the event.
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #11 on: September 12, 2024, 12:11:49 pm »
I moved away from kits because lists of parts/materials are made readily available along with an incredible amount of literature much of which is free online. At the end of the day I'd rather understand what I'm doing and why so the end result is what I want rather than following someone else's design to a T at the expense of comprehension and learning opportunities.

I'd suggest crawling through Doug's "kits" list for ideas.   

https://hoffmanamps.com/MyStore/perlshop.cgi?ACTION=enter&thispage=PartsListIndex.htm&ORDER_ID=!ORDERID!

These are not kits per se -- although most of the electronic components are available in Doug's store, you will have to source some of the components yourself. This is a great place to jump in if you have more than a (total) beginner's knowledgebase.

The really good thing about these designs is that they are well thought out, we know them well, you can mod them to your heart's content -- and -- play fantastic.

When you're starting from scratch, BEGIN with your schematic, THEN spec your iron.


Offline Willabe

  • Global Moderator
  • Level 5
  • ******
  • Posts: 10524
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #12 on: September 12, 2024, 12:14:21 pm »
I'm going with the 5E3P Proluxe with suggestions from Rob Robinette's webpage.

You never posted this link like you said you would, scroll down to the 5E3P Proluxe section;

https://robrobinette.com/5e3_Modifications.htm#6L6_Upgrade

Offline Bogan

  • Level 1
  • *
  • Posts: 6
  • I love Tube amps
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #13 on: September 12, 2024, 01:45:51 pm »


I'd suggest crawling through Doug's "kits" list for ideas.   



Is this by chance the same Doug that operates the "Uncle Doug" youtube channel?

Offline acheld

  • Level 3
  • ***
  • Posts: 1264
  • No well conceived plan survives the event.
Hoffman Amps Forum image
Re: Heyboer TP40D
« Reply #14 on: September 12, 2024, 02:47:20 pm »

I'd suggest crawling through Doug's "kits" list for ideas.   

Is this by chance the same Doug that operates the "Uncle Doug" youtube channel?

Most assuredly NO.   Doug Hoffman ("EL34") owns this website and the associated store (Hoffmanamps.com). He's got real chops as an amp guy going way back.

Uncle Doug is a retired math teacher from El Paso, who loves hot rods and does a good job teaching basic tube amp theory.   

They couldn't be more different.    Doug H can spell it out better if need be.

Do check out the list of "kits" and their associated schematics/layouts.  It's a gift.

 


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