10-OCT-2026 Updates*********************************************************************************

Hi!  Had some hand surgery this week and will be scheduling new orders around rehab and recovery.  We have winding assemblies on hand for several of the SE Hifi OT's, OT19PP-DYN35 and "M" sized PT's which we can still build this month.  We have a number of these through assembly & Varnish now that we'll drop into the EBay store soon.

At this point the new permanent location looks like it will get set up at the end of December.  After that builds should be more predictable.

It looks like Thomas & Skinner laminations is no longer taking orders...  It's getting more difficult to buy US Sourced 29M6 lams for audio now.  Still a bit of lamination production left in MX.  The epicenter of magnetic materials supply is truly in Asia now... and the US tariffs and shipping surcharges hurt.  Too much winning here for made-in-america businesses.  I'm glad we can keep a bit going here.

30-AUGUST-2026 Updates ****************************************************************************

We have relocated the MPS shop to a temporary location near Nashville & are operational as of 9/1/26.  EBay Store sales will continue and we expect to be able to assemble/ship several HiFi and General use OT and PT products quicker where we now stock winding assemblies. Full custom windings & builds will continue as before - using PayPal and a managed backlog.

In December we anticipate a final move to a new permanent shop location near Hermitage TN.  

General news:
We now have the regular OT20SE and OT42PP guitar OT's back in stock.  We're stocking windings from MX on these so the build times are a couple of weeks.

We have restocked windings for the OT11SE-HF-5KUL & will be able to keep that on the shelf alongside the 3K5UL version going forward.  

We have approved US Built purchased windings for the OT20SE-HF-3K5UL.  This is an 18VA version that weighs in about 4.0Lb each with a Ei1 x 2" stack of 29M6.  It will handle 80mAdc and about 18VA ... suitable for many 300B SE amps.  Windings will be here in October. The 1st samples were built and tested and are in the EBay store now.

We have purchased a dozen CN windings for a slighly less powerful OT17SE-HF-3K5UL using an
Ei1"x 1.75" stack of 29M6 (3.0Lb each).  Just checking these out currently-  expecting 70 to 75mAdc and 17VA rated. Should be in stock during September and expect a pair to be priced just under $200. May be a good option for E300B HiFi on a budget.

680Vct Laydown Power Transformer for Champ/Princeton style chassis- 
Full 3A Rectifier heater power on oversized lamination stack.

Deluxe Reverb Output Xfmr- oversized bobbin, stock 3.125" mounting centers

HiFi OT's in EI-1 INCH & EI 1-1/8INCH sizesChrome Covers available now