Skip to content

Store

IMPORTANT

  • UK CUSTOMERS - Prices exclude VAT (20%) which is only shown in check-out.
  • OVERSEAS CUSTOMERS - UK VAT disappears when you enter your country in check-out. Purchases from outside the UK will NOT pay UK VAT.
  • Instead of flooding you with a huge selection, I have tried to keep shipping options simple and straight-forward.
  • To save you a little money, items under 100.00 GBP are sent without tracking.
  • If you're outside the UK, your purchases may be subject to import duties which I'm afraid, I can't predict.
  • After purchase, you'll want to go to 'Shopping Cart'. Please enter a valid e-mail address and then press <Enter> on your keyboard to bring up shipping options and delivery address entry option. You can still cancel your purchase if you wish.

If you have any questions about my on-line store or the products and services I offer, please take a quick look at my FAQs and of course, you can always just contact me. 🙂


CHANGES TO US IMPORT DUTY

Up until 29th August 2025, items entering the United States with a value of less than $800 were exempt from import duty. The discontinuation of the $800 de minimis exemption for all countries, means that ALL items are now subject to US import duty, irrespective of value. Duty on items from the United Kingdom is 10%.

To ensure that your purchase arrives quickly and without too much hassle, I've chosen to pay the duty via the courier that I use (usually Royal Mail) and as such, I've reluctantly had to split my 'US & Canada' shipping cost into two and increase my charges to the US.

I'm so sorry guys.


PLEASE CLICK HERE FOR MY LATEST SHIPPING PRICES


PRODUCTS - With over forty years of electronic design and manufacturing experience, mostly in the audio industry, I still love taking on challenges and winning! For me, designing something and seeing it through to a commercial product, is as creative as writing and producing in the studio. Under this category,  you can browse through the things I make to help musicians, producers and engineers, along the way. 🙂

SERVICES (Technical) - Don't let the fact that you're unable to install one of my systems into your beloved piece of vintage equipment scare you off! I'm more than happy to do that for you. I also repair and  service studio and live performance gear as well as renovate vintage synthesisers, signal processors and guitar amps.

SERVICES (Creative) - I've been involved with studio and live music production, since 1985. It's my passion and I have a huge wealth of knowledge and experience. Being a musician myself, I'm able to connect with my clients while I make magic things happen. I'm also a keen photographer, website and graphics designer. If you think I can be of assistance, please do check out this category.

UPCYCLED AUDIO - My project for 2023, Upcycled Audio offers vintage equipment that's been renovated and / or upgraded with a view to deliver classic quality performance with modern convenience. You can read more about it here.

MARSHALL JMP-1 STUFF - Putting all my bits 'n' pieces for the Marshall JMP-1 into one place will hopefully make things a little easier for fans of this legendary MIDI valve pre-amp.

SIMMONS SDS7 HEAVEN - Back in eighties, I was part of the Simmons team based in St. Albans, Hertfordshire, England. A couple of years ago, I made the decision to get reengaged with my Simmons past and developed several peripherals for a few of those classic instruments. As it turned out, I designed a lot of bits 'n' pieces for the Simmons SDS7 specifically, so many in fact, that I decided to give the SDS7 its own category in my online store.


PML-TX01 Transformer for the Marshall JMP-1

£117.80
Pre-order
CR2032 adapter for JMP-1
Out of stock, available for pre-order
1
Share this product with your friends
PML-TX01 Transformer for the Marshall JMP-1
Product Details

!!!! TEMPORARILY OUT OF STOCK !!!!

Please check out my PML-TX01 Updates 2025 for the latest on this situation.

While I fight to sort this out, please don't hesitate to backorder.
I WILL SORT THIS OUT !!!!

The PML-TX01 isn't just a replacement transformer for the Marshall JMP-1. It's an upgraded design featuring laminates that are made from a much higher quality material than the original, thereby reducing laminate oscillation (hum) and heat.

Made in the same factory as the original, the PML-TX01 is pin-for-pin compatible with the Marshall (Dagnall) TXMA-00014 transformer, so it's pretty straight-forward swapping out the old one.

Fully detailed, illustrated and printable installation instructions are available after purchase. If you miss the link, please don't hesitate to contact me and I'll send them out to you.


MARSHALL JMP-1 VOLTAGE SELECTION

I regularly receive two questions from those interested in my PML-TX01. Both are about the Marshall JMP-1 input voltage selection:

  1. Is the PML-TX01 replacement transformer for the Marshall JMP-1, 230V or 115V?
  2. Are the voltage selector components diodes, ferrite beads or just fancy wire links?

The answer to the first question is, just like the original TXMA-00014, my PML-TX01 has two separate primary windings, each rated at 115V. So…

  • EUOPEAN / UK VOLTAGE SELECTION. Wired in series, the primary becomes a single 230V winding which is suitable for 220V (Europe) and 240V (UK, Australia). To wire in series, connect ONLY LK2.
  • USA / CANADA / JAPAN VOLTAGE SELECTION. Wired in parallel, the primary becomes a single 115V winding suitable for 120V (USA and Canada), 100V (Japan). To wire in parallel, connect LK1 and LK3.

It's quite easy to implement 240V to 120V conversion, or 120V to 240V, for example. Those eighties style wire links can make things look complicated but the original links were JUST WIRE LINKS and nothing else, so you can use wire. I would however, recommend that you use covered wire as these connections carry mains voltage!

PML-TX01 replacement transformer for the Marshall JMP-1

The image below shows the transformer windings. On the left are the two primaries which connect to domestic A.C. power. Jumpers LK1 and LK3 are installed for 115V operation. For 230V operation, ONLY LK2 is installed.

It's important that the input voltage selection is chosen properly so below things are drawn that may be more representative of what you might actual see in your JMP-1.


A WORD ON SHIPPING COSTS

Annoyingly, my shopping cart software displays shipping information after you’ve confirmed your payment option. I’m trying to get this changed as I believe that customers should always know exactly what they’re paying. Of course, I have no control over import duties but I try my best to give clear, concise information.

I therefore maintain a ‘Shipping Prices’ page and visitors to my website who are interested in buying stuff, have the opportunity to check shipping costs to their country / region.

My shipping costs are calculated on item value and not weight as everything is insured.

UPDATE - August 2023

I'm offering my CR2032 adapter for the JMP-1 at a discounted price when purchased with the PML-TX01. Hey, you gotta take the board anyway, right?