11-MAR-2026 Updates

MX OT20PP windings received and we have worked out the USA process to laminate, varnish, assemble and test in TN.  The pricelist needed a small adjustment to cover US Labor and our relatively low volume materials costs compared to the MX Plant.  The three OT20PP versions are back in EBay stock and can be purchased directly using PayPal Invoice requests 

USA windings for the OT15SE-HF-2K5, -3K5, & -5K versions are now on hand.  We're working to get stock to the EBay store and can offer a shorter lead time on these now.  Here in TN we will gap and bond the cores, varnish, cover, test and pack.  Pricing is competitive.

If you need Chrome or Horizontal covers or want the 40% UL tap buried on your order we can work that out on the PayPal Invoice.  The standard part on EBay will be Black VC100 (no flange) style cover.  Full Mount bells are stock and available.

A decent supply of covers have made it through from Asia with no Tariff's using SeaFreight.  For the moment we're hopeful we can plan for schedules and costs again!

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1-MAR-2026 Updates

OT20PP backup plan is underway.  Mexico has had difficulty getting 29M6 Laminations. They have built and sent winding assemblies now.  We will laminate, varnish, assemble, test here in TN and get some stock into the EBay store this week.  

HiFi things-
OT15SE-HF-XX (-2K5, -3K5, -5K) windings will be here this week from a USA shop.  There should be stock in about 2-3 weeks once we assemble/gap cores, varnish, cover and test the first pairs.  Some configurating can be done on these windings.  We can omit the 40% UL taps or 4ohm winding taps and offer several End Bell and Cover options.  We'll work this up into an option sheet.

OT19PP-DYN-35 windings will be here for approval this week.  If all goes well we can sell from stock. 

OT11SE-HF-3K5 and 5K windings are on order from CN and I expect to have these in 4 to 6 weeks.  At that point we will complete these to stock on EBay or for PayPal direct sale.

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4-JAN-2026 Updates

New Pricelist has been posted.  There are a number of pressures on small business this past year affecting MPS Costs.  Some of that needed to be considered and is reflected in the new pricelist.

On the basic OT items the Mexico supplier is having trouble getting Laminations currently.  So the OT20PP versions are out of stock.  I don't yet have a recovery date.  Apparently Tempel Mexico has signifiant labor problems with an uncertain recovery.  Also Electrical Grade steel is mostly imported to N America and would now be affected by 50%+ tariffs.  There is apparently some hesitation in the supply chain  resulting in schedule problems.  

In the meanwhile if you need some version of the OT20PP, I've listed OT16PP (6K6) and OT17PP (8K) USA versions again in the pricelist which will be made here in TN to order.  If we get the opportunity we will build a few for EBay stock.  

I am expecting to approve USA sourced windings for the OT15SE-HF-XX versions in the next month or so.  Once I have those we should be able to stock the SE HiFi versions.  It will raise pricing a bit further but greatly improve supply.  If this works out well we will probably look at other HiFi and Basic OT windings we can finish up here.  We're reluctant to teach Asia to build our best products.....

Recent new activity includes:
>Repeat orders for 50W transformers for a popular NJ builder
>1930's Zenith Radio OT's (15U269, 92262, 12A58) and requests for 3.2ohm outputs for vintage radio
>Worked out some magnetics for Pilot Radio launch
>Magnavox/Dave Gillespie SE-1 OT version developed
>Worked up a Supro DeltaKing 12 PT
>Magnavox 8802 OT pair worked up
>More 2A3 and 300-B OT versions built
>Another Parallel Feed SE OT pair worked up based upon OT15SE-HF-8K
>Gibson GA-5 PT worked up
>Discussing Ampeg OT-214/5 like bass OT's for 35W
>Rob Robinette Micro JCM set created RR2104
>Feedback from Skunkie Designs is getting us nice comparions to Edcor standard SE product - this seems to be driving a lot of projects towards us recently.

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

Other recent New Stuff 

Working on several HiFi projects & now have an assortment of better looking covers for HiFi projects including painted and a polished plated version.